N AT I O N A L C E N T E R F O R P O L I C Y A N A LY S I S



                           Solar Power Prospects
   Policy Report No. 334                       by H. Sterling Burnett                                   May 2011

The production of electricity from renewable energy technologies is growing much faster
than the electric power supply as a whole, and solar power is among the fastest growing
segments of the renewable energy market. Public policy concerns and economics are
driving this growth. Some analysts and politicians believe that increasing solar power
use will enhance U.S. national security by reducing dependence on imported energy —
primarily oil from the Organization of Petroleum Exporting Countries (OPEC) and Russia.
                                                              Executive Summary
                                       The production of electricity from renewable energy technologies is growing
                                       much faster than the electric power supply as a whole. Solar power is among
                                       the fastest growing segments of the renewable energy market. Centralized
                                       solar power is produced on large farms and fed into an electrical grid — a
                                       network of wires and transformers that allows electricity produced by multiple
                                       sources to be transported to industrial, commercial and residential consumers.
                                       Globally, grid-connected solar capacity increased an average of 60 percent
                                       annually from 2004 to 2009, faster than any other energy source. Solar
                                       electricity production grew 15.5 percent in 2009 alone. Today, however, solar
                                       power still accounts for less than one-half of one percent of the world’s electric
        Dallas Headquarters:           power output.
     12770 Coit Road, Suite 800
         Dallas, TX 75251
                                          Despite its impressive growth, and even with significant subsidies, solar
           972.386.6272                power is substantially more expensive than conventional power sources in
         Fax: 972.386.0924             most locations. This is true of solar thermal systems that use lenses or mirrors
           www.ncpa.org
                                       and tracking systems to focus sunlight into a small beam to heat a fluid that
                                       turns steam-powered turbines. It is also true of solar photovoltaic power, in
        Washington Office:             which panels or modules of cells fabricated from semiconducting materials
   601 Pennsylvania Avenue NW,         generate electrical power by converting solar radiation into direct-current
     Suite 900, South Building
      Washington, DC 20004
                                       electricity. This study focuses on solar photovoltaic (“solar”), the more mature,
           202.220.3082                more widespread and historically easier to build form of solar generation.
        Fax: 202.220.3096                 Analysts agree that if solar is to become a significant power source, it
                                       must compete with other energy sources — in markets without subsidies to
        ISBN #1-56808-212-6
                                       any form of energy, barriers to the entry of new producers or discriminatory
       www.ncpa.org/pub/st334
                                       price regulations. When the price at which customers in a particular area can
                                       purchase electricity generated by solar power is about the same as the aver-
                                       age price of electricity generated by conventional sources, it is said to have
                                       reached grid parity.
                                          U.S. Energy Subsidies Are Substantial. In the United States, federal
                                       energy subsidies have amounted to hundreds of billions of dollars. Refined
                                       coal receives more subsidies than any other single energy source. According to
                                       a 2008 Energy Information Administration (EIA) report:
Solar Power Prospects

      ■■ Federal subsidies to all energy sources topped              to determine the dollar value of the energy that could be
         $16.6 billion in 2007 alone, more than double the           produced in a city, based on current average electric prices
         $8.2 billion spent in 1999.                                 in that state. Other factors, such as the derate — the per-
                                                                     centage of a cell’s rated output capacity that it will actually
      ■■ Nonrenewable energy sources, including fossil
                                                                     produce — can also be input. The result is a measure of the
         fuels and nuclear power, received the majority of
                                                                     revenue potential of the installation.
         subsidies — slightly more than $6.7 billion.
                                                                        Using the PVWatts calculator, at what price might solar
      ■■ By comparison, renewable fuels including solar,
                                                                     become profitable? For example, take a 1,000 kilowatt
         hydroelectric, wind, biofuels and geothermal,
                                                                     system, with construction and installation financed at a 6.25
         received $4.8 billion.
                                                                     percent interest rate. The cost of the project would depend
       In addition, some states have subsidies and mandates for      on the price of solar panels. At an installed cost of $3.90 per
    renewable energy. Currently, subsidized solar energy costs       watt, the project would cost $3.9 million. At $2.50 per watt,
    between $0.22 per kilowatt-hour and $0.30 per kilowatt-          the project would cost $2.5 million. At $1.50 per watt, the
    hour, according to independent analyses. By contrast,            project would cost $1.5 million. Using three different prices
    the average cost of electricity nationwide is expected to        for the solar cell modules in a selection of 13 U.S. cities:
    remain roughly $0.11 per kilowatt-hour through 2015,               ■■ At a cost of $3.90 per watt, only Hawaii generates
    according to an August 2010 White House report.                       enough income to cover its annual loan payments.
       Solar Power Has Reached Parity in Some Areas.                   ■■ At $2.50 per watt and the higher 0.825 derate
    The price point for grid parity varies by location, due to            factor, San Diego also barely covers its note.
    such factors as the amount of sunlight an area receives, the
    orientation of the solar array, whether the solar arrays are        By contrast, when solar panels reach $1.50 per watt, sev-
    fixed or track the sun, construction costs, rate structure and   en of the cities examined generate enough income to cover
    financing options. As a result, according to the National        their financing even at the lower derate factor; as the derate
    Renewable Energy Laboratory, breakeven costs vary by             factor improves, eight cities can cover their loan payments.
    more than a factor of 10 in the United States. Thus:               These scenarios are consistent with projections of future
                                                                     energy costs by the International Energy Agency (IEA) in
      ■■ Solar power has already reached grid parity in              2010. The IEA concluded that:
         Hawaii, where the average price for electricity
         was $0.25 per kilowatt-hour in 2010 — with                    ■■ Over the next decade, with continued government
         the average residential price topping $0.28 per                  support, solar power prices will decline sufficiently
         kilowatt-hour.                                                   to compete with conventional electric retail
                                                                          prices in a “few” countries by 2015 and “several”
      ■■ In some parts of the country, solar may approach                 countries by 2020.
         grid parity soon.
                                                                       ■■ The IEA projects that the cost of solar electricity in
      ■■ In other locations, such as Arizona, that have                   2020 will range from $0.13 to $0.26 per kilowatt-
         abundant sunlight but limited transmission access                hour for commercially produced solar power
         and low electricity prices, solar is not competitive.            and $0.16 to $0.31 for electricity produced by
       Solar Power Must Be Profitable in Order to Com-                    residential systems.
    pete. Most analysts agree that solar will reach grid parity in     ■■ If the IEA’s estimates are correct, the price of
    a wide range of locations if the price for solar panels falls         solar power will still be higher than the cost of
    toward $1 per watt. Indeed, at $1.50 per watt, solar might            conventionally produced electricity in 2020.
    be competitive with conventional generation sources in
                                                                        With major technological breakthroughs that signifi-
    locations with a combination of high average electric costs
                                                                     cantly reduce the cost of solar power production and the
    and/or good average sunlight — producing power at $0.10
                                                                     imposition of new environmental mandates that raise the
    to $0.15 per kilowatt-hour.
                                                                     price of electricity generated by other sources, solar could
       An online calculator called PVWatts, developed by             reach grid parity in some areas of the United States by the
    the National Renewable Energy Laboratory, can be used            end of the decade.

2
Introduction                      efficiency, reducing the cost of solar    study, the price of electricity from
                                          panels considerably.                      newly constructed solar facilities
   The production of electricity                                                    will be compared with prices from
from renewable energy technologies            However, in most locations
                                                                                    other new generating sources.
is growing much faster than the           solar is still substantially more
electric power supply as a whole,         expensive than conventional power            This study will also consider:
and solar power is among the              sources. Analysts agree that if solar     What would be necessary for solar
fastest growing segments of the           is to become a significant power          power to compete as a significant
renewable energy market. Public           source, it must compete with other        energy source with other new
policy concerns and economics             energy sources — in markets               sources of electric power? When is
are driving this growth. Some             without subsidies to any form of          widespread parity likely? When will
analysts and politicians believe          energy, barriers to the entry of new      the annualized cost of solar power
that increasing solar power use will      producers or discriminatory price         be competitive with other sources
enhance U.S. national security by         regulations. When the price at            of electric power over the life of the
reducing dependence on imported           which customers in a particular area      generation facility?
energy — primarily oil from               can purchase electricity generated
                                          by solar power is about the same             In Hawaii, for example, due to
the Organization of Petroleum                                                       favorable climatic conditions and
Exporting Countries (OPEC) and            as the average price of electricity
                                          generated by conventional sources,        high energy costs, solar power,
Russia. Environmentalists argue                                                     with present subsidies, is already
that solar power will improve air         it is said to have reached grid parity.
                                                                                    cost competitive with electricity
quality by reducing the use of                                                      from other sources. In other areas
fossil fuels — primarily coal — for                                                 with a combination of consistently
electric power production. They                                                     sunny days and high energy costs,
claim this would reduce emissions           “Solar power has grown                  solar power could become cost
of a variety of air pollutants,                                                     competitive as additional power to
including greenhouse gases.                 rapidly, but still accounts
                                                                                    the grid by, say, late in this decade.
                                            Insert callout here.
                                             for less than one-half of              However, analysis of the available
   These concerns have led to                    1 percent of U.S.                  evidence indicates that unless
favorable tax treatment, price                 electricity output.”                 the substantial subsidies recently
supports and direct subsidies for                                                   available in the United States and in
renewable energy by both federal                                                    Europe are continued, widespread
and state governments. Some                                                         grid parity for solar power is a
states have implemented mandates                                                    decade or more away.
— called renewable portfolio                 It is important to compare the
standards — for production and/or         projected cost of solar power                 Note that regulations that affect
use of electricity from renewables.       from new installations with power         the costs and viability of energy
Tens of billions of dollars in public     generated from new conventional           production are in constant flux.
spending and renewable energy             power plants rather than existing         Some environmental regulations
mandates have encouraged private          conventional plants. Power                — such as increasingly stringent
investment in solar power. Indeed,        generators already in operation           air pollution limits, for example
in the United States, solar electricity   represent sunk costs, and the             — will raise the costs of fossil
production grew 55 percent from           capital costs to build those plants       fuels, especially in comparison to
2004 to 2008, and 15.5 percent in         have been partially or completely         solar and other energy sources.
2009 alone.1 Today, however, solar        amortized. Since new solar power          Other regulations might never be
power still accounts for less than        plants will compete with other            implemented. Thus, in this study,
one-half of one percent of U.S.           renewable energy sources, new             it is assumed that current laws and
electric power output. Public and         fossil fuel plants and new nuclear        standards will continue. It is on
private investment has encouraged         facilities, the costs of new power        that basis that the future price of
innovation and increased production       plants should be compared. In this        electricity generated by fossil fuel

                                                                                                                             3
Solar Power Prospects

    and nuclear powered plants will be       ■■ Between 2004 and 2009,            Solar photovoltaic is a more mature
    compared with solar power.                  grid-connected solar capacity     technology, easier to build and
                                                increased an average of 60        in much wider use. Most recent
     Solar Power Output,                        percent annually, to some 21      solar power installations are
                                                gigawatts (21 billion watts —     solar photovoltaic. Thus, unless
       Technology and                           or units of electric power).3     otherwise noted, in this study
          Efficiency                         ■■ As of 2010, solar power           “solar” refers to solar photovoltaic.

       Earth receives more energy
                                                generated electricity in more        Solar Cell Technology. There
                                                than 100 countries.               are two main types of solar
    from the sun in one hour than the
    amount of energy the world uses          This paper focuses on centralized    photovoltaic technologies: silicon
    in one year. The amount of solar       solar power production. Off-grid       wafer and thin film. Silicon wafer
    energy reaching the surface of the     photovoltaic, such as rooftop panels   technology is the one used in most
    planet in one year is about twice      that generate power for on-site        solar power plants. Indeed, silicon
    as much as will ever be obtained       consumption, accounts for an           wafer makes up 82 percent of the
    from all of Earth’s nonrenewable       additional 3 to 4 gigawatts.           installed solar market.6 Thin film is
    resources of coal, oil, natural gas                                           less expensive, and accounts for a
    and mined uranium combined.2                                                  growing share of the market. Sales
    Even under the best circumstances,                                            of thin film are growing 50 percent
    only a small part of this energy                                              per year, while silicon wafer solar
    would be available for solar power                                            is growing approximately 30
    use, because much of it is naturally       “Earth receives more               percent per year. This paper focuses
    consumed by plant photosynthesis.       energy from the sun in one            on common silicon wafer panels
    But this small amount could,
                                             Insert callout here.
                                             hour than the amount the             or modules, rather than thin film
    in theory, be transformed into a         world uses in one year.”             technologies, because silicon wafers
    significant amount of electricity.                                            convert sunlight to electricity more
                                                                                  efficiently and therefore will likely
       Solar Power Output. Solar                                                  continue to dominate the market:
    power includes both centralized and
    decentralized solar power sources                                               ■■ Silicon wafer technologies
    and different technologies for            Thermal versus Photovoltaic              convert 13 percent to 20
    generating power (which includes       Solar. Two main types of solar              percent of the sunlight hitting
    electricity and heat). Centralized     power are used to produce                   them into electricity whereas
    solar power is produced on large       electricity. Thermal solar power            thin film technologies often
    farms and fed into an electrical       systems generally use lenses or             convert just 4 percent.7
    grid — a network of wires and          mirrors and tracking systems to
    transformers that allows electricity                                            ■■ Under artificial laboratory
                                           focus a large area of sunlight into         conditions, research scientists
    produced by multiple sources           a small beam to heat a fluid that
    to be transported to industrial,                                                   have produced 41 percent
                                           turns steam-powered turbines.4 The          conditions from certain types
    commercial and residential             most familiar solar technology,
    consumers. Globally, solar-powered                                                 of layered solar cells, but such
                                           however, is solar photovoltaic              advances will not be available
    electricity production has grown in    technology used to produce
    recent years:                                                                      commercially for years.
                                           electricity in calculators, yard
      ■■ Solar power is a tiny frac-       lights and rooftop panels. Solar         ■■ Absent a significant
         tion of the 4,800 gigawatt        panels consist of a number of cells         technological breakthrough,
         total global electricity          fabricated from semiconducting              the inherent physical char-
         generating capacity, but it       materials that generate electrical          acteristics of crystal silicon
         is the fastest growing            power by converting solar radiation         mean that energy conversion
         technology in the world.          into direct-current electricity.5           will top out at 30 percent.8

4
Solar cells last 20 to 25 years;          price ceilings on oil and             Refined coal receives more
however, even if solar panels are            gas consumed in countries          subsidies than any other single
cleaned periodically to maintain             like Bolivia, Venezuela and        energy source — mostly tax credits
peak efficiency, output declines by          Iran — according to the            for research and development of
approximately 0.5 percent per year.          Global Subsidies Initiative,       so-called clean coal, carbon-capture
Thus, after 20 years they will only          a collaborative effort of the      and storage technologies, and
produce 80 percent of their rated            environmentalist Institute for     synthetic fuels from coal to improve
capacity. Less efficient cells may           Sustainable Development and        air quality, lower carbon emissions
cost less per module, but are not            the Earth Council.10               or reduce energy dependence.
necessarily less expensive to use                                               Renewable energy is the second
                                          ■■ Subsidies in developed
because more have to be installed to                                            most subsidized energy type, and
                                             countries have shifted from
get the same amount of energy.                                                  receives more subsidies than all
                                             fossil fuels and nuclear power
                                                                                the other (noncoal) fossil fuels and
                                             toward renewable energy
                                                                                nuclear power combined.
    Energy Subsidies                         sources in recent years — U.S.
                                             subsidies to renewables, for          The installed base of solar and
   Fossil fuels, nuclear and                 example, grew from 17 percent      other renewables is small compared
renewable energy sources —                   of total energy subsidies in       to fossil fuels. As a result, measured
including solar power — are                  1999 to 29 percent in 2007.11      by the energy delivered per dollar
subsidized worldwide. Government                                                of subsidy, solar is among the most
subsidies tend to encourage               ■■ More recently, from 2008 to
                                                                                highly subsidized power sources.
increased investment in production           2009, renewable energy sub-
                                                                                According to the EIA:
and/or reduce the cost of a                  sidies increased from approxi-
good or service to consumers.                mately $46 billion worldwide         ■■ Natural gas and petroleum
The cost of subsidies are less               to more than $57 billion.12             subsidies amount to $0.25 per
visible than the lower prices                                                        megawatt-hour of electricity
                                          U.S. Energy Subsidies. In
paid by consumers. They include                                                      produced.
                                        the United States, federal energy
costs to taxpayers and market           subsidies have amounted to hun-           ■■ Coal subsidies amount to
distortions, which tend to protect      dreds of billions of dollars. Accord-        $0.44 per megawatt-hour.
less efficient technologies and         ing to a 2008 Energy Information          ■■ Biomass (including biofuels)
reduce or undermine innovation.         Administration (EIA) report:13               subsidies amount to $0.89 per
  Global Energy Subsidies.                ■■ Federal subsidies to all energy         megawatt-hour.15
Globally, fossil fuels are the most          sources topped $16.6 billion in
heavily subsidized energy source:            2007 alone, more than double
                                             the $8.2 billion spent in 1999.
  ■■ Developing countries annually
                                          ■■ Nonrenewable energy sources,
     spend $220 billion on subsi-
                                             including fossil fuels and            “Refined coal receives
     dies for all forms of energy, of
                                             nuclear power, received the           more federal subsidies
     which more than $170 billion
     is spent on fossil fuel subsi-          majority of subsidies —              Insertany other single
                                                                                    than callout here.
     dies, according to International        slightly more than $6.7 billion.          energy source.”
     Energy Administration                ■■ By comparison, renewable fu-
     (IEA) estimates.9                       els including solar, hydroelec-
  ■■ Worldwide energy subsidies              tric, wind, biofuels and geo-
     topped $490 billion in                  thermal, received $4.8 billion.
                                                                                  By contrast:
     2007 — of which more than             Most federal energy subsidies
     $400 billion were fossil           ($10.4 billion) are tax expenditures      ■■ Nuclear power subsidies
     fuel subsidies in developing       (tax credits and other preferences)          amount to $1.59 per megawatt-
     countries and mostly through       rather than direct expenditures.14           hour of electricity produced.

                                                                                                                         5
Solar Power Prospects

      ■■ Wind subsidies amount to               was in states with mandatory          Long-Distance Transmission
         $23.37 per megawatt-hour.              renewable portfolio standards.     Lines. Locations for centralized
                                              ■■ Since 2002, 60 percent of         photovoltaic solar farms are
      ■■ Solar subsidies amount to                                                 somewhat limited. They require
         $24.34 per megawatt-hour.16             the renewable additions
                                                 have been in states with          much more land than conventional
       State Subsidies and Indirect              mandatory standards.              electric power plants to produce
    Subsidies. A majority of states                                                the same amount of electricity. The
                                              ■■ In 2007 alone, approximately      land must be relatively inexpensive
    and many localities subsidize                76 percent of all nonhydro
    various forms of renewable energy                                              since it is an additional cost. In
                                                 renewable capacity                addition, solar farms must be in
    production. These subsidies                  additions were in states
    include state grants, tax incentives,                                          sunny areas, and they receive more
                                                 with these programs.18            energy closer to the tropic zones.
    electricity purchase provisions, and
    rebates or property tax deductions         In order to diversify supplies,     Though solar panels generate
    for home photovoltaic installations.    states are increasingly encouraging    some power on overcast days, too
                                            or requiring utilities to meet a       much rain or too many cloudy
       State Renewable Portfolio            portion of their portfolio standard    days reduce the amount of power
    Standards. State renewable              through renewable technologies         generated below the level needed
    portfolio standards have proliferated   or applications that are often         to cover costs and increases the
    since the 1990s and, along with         more costly. This support includes     variability of the power supplied.19
    federal subsidies, have become the      credit multipliers, which give         Thus, solar farms are usually
    key driver of U.S. renewable energy     favored renewables more credit         located hundreds or even thousands
    growth. By 2008, 25 states and the      toward the requirements than           of miles from the cities and suburbs
    District of Columbia had mandatory      other technologies, and specific       where the power is consumed.
    renewable power standards for           set-asides, in which some fraction
    electricity providers, and four more                                              The cost of high-voltage
                                            of the portfolio must be met with      power lines to carry power long
    states had nonbinding goals.17 The      favored technologies.
    standards vary, but generally require                                          distances tops $1.5 million per
    retail electric suppliers to provide                                           mile, assuming flat, rural terrain.20
    a minimum quantity or percentage                                               Obtaining permits and rights of way
    of electric power from renewable                                               increases the cost. In addition, if
    resources. In many states,                                                     the terrain is hilly, mountainous or
                                              “State portfolio standards           forested, the cost can rise to 1.2 to
    requirements increase over time.
                                              and federal subsidies are            1.5 times the average cost.21 Power
       Renewable portfolio standards
                                              Insert callout here.
                                               key drivers of renewable            lines have to be built at least to
    are, in one sense, more powerful               energy growth.”                 the nearest main transmission line,
    than subsidies. Subsidies only                                                 which may have to be upgraded
    encourage utilities, firms and                                                 to handle the additional flow and
    individuals to adopt, develop or                                               to regulate the variability of solar
    use renewable power, but portfolio                                             power. For example, thousands of
    standards require electric suppliers                                           miles of new power line would have
    to purchase (and thus consumers to         Both centrally generated and        to be constructed at a cost of tens of
    pay for) renewable, regardless of       distributed (residential) solar        billions of dollars to deliver power
    the cost. This strategy appears to be   generation have especially benefited   from Midwest solar farms to East
    working:                                from such set-asides. Indeed, 12       and West coast cities.
                                            of the 26 U.S. renewable portfolio
      ■■ Over 50 percent of the             standard programs have set-asides         Renewables benefit from
         nonhydro renewable capacity        for solar power, and four of these     subsidies for the construction
         added in the United States         states combine set-asides with some    of new transmission lines
         from 1998 through 2007             form of credit multipliers.            and associated infrastructure.

6
Traditionally, public or private         extended losses of power. Passing       have been made in the past. [See
utilities built the transmission         clouds only affect a few panels or      the sidebar, “Solar Power: Promises
lines serving a particular area and      small portions of the full array at a   and Subsidies.”] When are these
passed on the cost to customers.         time. Even on days with little wind,    more recent predictions likely to
However, at the behest of the            if clouds are sporadic, large solar     come true?
renewable power industry and             arrays produce near rated capacity.24
                                                                                    Currently, subsidized solar
with the support of the Obama
                                                                                 energy costs between $0.22
administration, the Federal Energy
                                                                                 per kilowatt-hour and $0.30
Regulatory Commission (FERC)
                                                                                 per kilowatt-hour, according to
has drafted a rule that could                    “The Obama                      independent analyses.33 Projections
basically nationalize transmission          administration predicts              of future energy costs by the
infrastructure development costs
by requiring either taxpayers              Insert callout solar
                                             electricity from here.              International Energy Agency (IEA)
                                                                                 in 2010 indicate that:
or electric power consumers to                power will be price
pay for new transmission lines              competitive by 2015.”                  ■■ Over the next decade, with
to bring remote wind and solar                                                        continued government
power to the national grid.22                                                         support, solar power prices
   Governors throughout the                                                           will decline sufficiently to
                                                                                      compete with conventional
country object to the plan. A                 When Will Solar                         electric retail prices in a “few”
joint letter from the governors of
Arizona, Nevada, Washington,                   Power Reach                            countries by 2015 and
Oregon and California says that it                                                    “several” countries by 2020.
                                               Grid Parity?
would be “inappropriate to assess                                                  ■■ The IEA projects that the
the cost of transmission build-out          A common theme in many of                 cost of solar electricity in
to customers that cannot make use        President Obama’s speeches is                2020 will range from $0.13
of the facilities, or who elect not to   that government subsidies will               to $0.26 per kilowatt-hour for
because they can access more cost        make a variety of “clean” energy             commercially produced solar
effective options that do not rely on    technologies cost competitive. An            power and $0.16 to $0.31
large, new transmission investments      August 2010 White House report               for electricity produced by
to meet environmental goals.”23          singled out solar power produced             residential systems.
                                         by rooftop residential installations.
   Stabilizing Power. Renewables                                                   ■■ If the IEA’s estimates are cor-
also benefit from the availability of    In 2009, electricity produced by
                                                                                      rect, the price of solar power
on-demand stabilizing and fill-in        such systems cost the equivalent of
                                                                                      will still be higher than the cost
power from other sources. Fossil         more than $0.21 per kilowatt-hour
                                                                                      of conventionally produced
fuel or nuclear-powered generating       (including installation but not
                                                                                      electricity, and thus solar will
plants run as spinning reserve at less   maintenance costs), whereas the
                                                                                      not reach grid parity in much
than peak efficiency in order to be      average retail price of electricity
                                                                                      of the United States by 2020.
brought on-line if the variable flow     nationwide was $0.11 per kilowatt-
from a solar farm falls precipitously    hour.25 However, the report predicts       However, the price point for
over a short period of time. Some        the average cost of residential solar   grid parity varies by location,
portion of these plants’ cost should     will fall to $0.10 per kilowatt-hour    due to such factors as the amount
be counted against the solar facility    by 2015, while the average cost of      of sunlight an area receives, the
since they make it possible.             electricity nationwide will remain      orientation of the solar array,
                                         roughly $0.11 per kilowatt-hour.        whether the solar arrays are fixed
   However, at locations where solar     This would be grid parity. Other        or track the sun, construction
is ideal or nearly ideal, the larger     administration studies make similar     costs, rate structure and financing
the array, the less problem there is     claims for commercially produced        options. As a result, according to
with power spikes or significant,        solar power. Similar predictions        the National Renewable Energy

                                                                                                                           7
Solar Power Prospects

                                                                                   Laboratory, breakeven costs vary
                                                                                   by more than a factor of 10 in the
            Solar Power: Promises and Subsidies                                    United States.34 Thus:
       Harnessing sunlight for heating and other power purposes is not new.
       Solar collection devices were developed in the 17th century to protect        ■■ Solar power has already
       plants brought from the tropics to northern countries, and both the first        reached grid parity in
       solar water heater and the first solar oven were developed the 18th              Hawaii, where the average
       century. Indeed, the solar power revolution has been on the verge of             price for electricity was
       taking off for centuries.26                                                      $0.25 per kilowatt-hour in
          In response to the Arab Oil Embargo, in part, the relatively new              2010 — with the average
       U.S. Department of Energy (along with other agencies) began a                    residential price topping
       slew of programs to fund solar energy research, deployment and                   $0.28 per kilowatt-hour.
       commercialization. Based strictly on performance, these programs              ■■ In some parts of the
       have failed at the cost of billions of dollars of taxpayers’ money.              country, solar may approach
          No one has ever lost money betting against the predictions that               grid parity soon.
       widespread, cost-competitive solar power was just “a few years”
       away.27 The hyping of solar power’s near-term potential as a source of        In other locations, such as
       electricity increased exponentially with the advent of large government     Arizona, that have abundant
       grants and subsidies for solar power research in the 1970s. In 1976,        sunlight but limited transmission
       for example, noted environmental author Barry Commoner stated               access and low electricity prices,
       that mixed solar/conventional installations could become the most           solar is not competitive.35
       economical alternative in most parts of the United States within the
       next few years.28 In 1987 the head of the Solar Energy Industries                 What Is the
       Association stated: “I think frankly, the…consensus as far as I can see
       is after the year 2000, somewhere between 10 and 20 percent of our             Breakeven Cost of
       energy could come from solar technologies, quite easily.”29
                                                                                        Solar Power?
         Why haven’t these and other similar predictions come true? The
       answer of many advocates has been simple: inadequate government                 In order to determine whether a
       support.                                                                    solar power plant is competitive in a
                                                                                   particular area, one must determine
          A 1983 study by the Booz Allen Hamilton consulting firm for the          if the electricity it produces can
       Solar Energy Industries Association, the American Wind Energy
                                                                                   be sold at a profit, given average
       Association and the Renewable Energy Institute found that solar and
                                                                                   electric power prices in the region,
       wind technologies would become competitive and self-supporting
       by the end of the 1980s, if “assisted by tax credits and augmented by       the amount of power the plant could
       federally sponsored R&D [research and development].”30 Just three           produce and capital costs (including
       years later, long-time green energy booster Amory Lovins, of the            interest) of construction.
       Rocky Mountain Institute, decried what became a temporary scaling              The Photovoltaic Watts
       back of tax breaks for renewable energy, since the competitive viability    Calculator. An online calculator
       of wind and solar technologies was “one to three years away.”31 And         called PVWatts, developed by
       in 1990, with sufficient government support, the Worldwatch Institute       the National Renewable Energy
       predicted an almost complete displacement of fossil fuels for the           Laboratory, allows nonexperts
       electric power generation market by approximately 2010.32                   to quickly obtain performance
          It seems hardly fair, however, to claim that solar power has failed      estimates for grid-connected
       to reach widespread commercialization in the marketplace due to lack        photovoltaic systems. The PVWatts
       of subsidies since, by some measures, solar power is one of the most        calculator shows the dollar value of
       highly subsidized power sources on Earth.                                   the energy that could be produced
                                                                                   in a city, based on current average
                                                                                   electric prices in that state. This is a

8
TABLE I
                Hypothetical Solar Power Plant Revenue for Select Cities
                                         Average State Price
              City                       per Kilowatt Hour           At 0.77 Derate*          At 0.825 Derate*
              El Paso, Texas                      9.36 ¢                 $155,097                  $166,285
              Austin, Texas                       9.36 ¢                 $127,528                  $136,849
              Bridgeport, Conn.                  17.42 ¢                 $208,172                  $223,533
              Columbus, Ohio                      9.13 ¢                 $102,665                  $110,254
              San Diego, Calif.                  13.97 ¢                 $209,339                  $224,528
              Miami, Fla.                        10.61 ¢                 $142,098                  $152,549
              Nashville, Tenn.                    8.66 ¢                 $110,636                  $118,763
              Phoenix, Ariz.                      9.78 ¢                 $158,138                  $169,522
              Anchorage, Alaska                  14.86 ¢                 $117,998                  $126,953
              Honolulu, Hawaii                   25.03 ¢                 $365,423                  $392,157
              New York, N.Y.                     16.37 ¢                 $199,459                  $214,172
              Charleston, W. Va.                  7.42 ¢                 $ 83,975                  $ 90,185
              Rapid City, S.D.                    7.78 ¢                 $109,547                  $117,543
    * The percentage of rated capacity a solar power plant is expected to produce.
    Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and
    author’s calculations.


measure of the revenue potential of         conditions. The average cost of                the old PVWatts factor. This derate
the installation.                           electricity for each state is the              also accounts for the fact that some
                                            most recent estimate from the U.S.             solar farm developers might use
   The calculator automatically             Department of Energy.                          higher rated (but more expensive)
adjusts for a number of variables,                                                         equipment, while others use less
                                               It is necessary to consider two
including the type of solar power                                                          expensive, less efficient solar
system (fixed axis versus tracking),        scenarios to account for the fact
                                                                                           arrays. As Table I shows, the dollar
the average amount of sunlight in           that a solar cell will deliver less
                                                                                           value of the electricity produced by
a particular area and the angle of          power than its rated capacity,
                                                                                           solar power varies dramatically by
the sun. Note, however, that the            due to such factors as dust and
                                                                                           region and, more importantly, by
PVWatts calculations do not include         dirt, shade and power losses in
                                                                                           the average price of electric power
the operating and maintenance               the wiring. This “derate factor”
                                                                                           in a state:
costs of the systems (see additional        is a percentage of the cell’s rated
                                            capacity. The first scenario uses                 ■■ Due to high energy prices and
considerations below).
                                            PVWatts’ default derate factor of                    favorable climatic conditions,
   Solar Competition under                  0.77. The PVWatts derate factor is                   a 1,000 kilowatt solar array
Two Scenarios. Following are                still commonly used, but it has not                  in Hawaii delivers the highest
two exercises using the PVWatts             been updated since 2007. Some                        dollar value of electricity in a
calculator, for a 1,000 kilowatt (1         solar cell manufacturers now claim                   year, ranging from $365,423 to
megawatt) system using a fixed              a 0.90 derate factor. The second                     $392,157.
array at various locations, with a          scenario adjusts the PVWatts derate               ■■ Low electric power prices
wide range of energy costs, and             to 0.825, splitting the difference                   and less available sunlight
different geographic and climatic           between manufacturers’ claims and                    on average means that a

                                                                                                                                    9
Solar Power Prospects


                                                                 TABLE II
                                  Annual Revenue Net of Capital Costs for a
                                     Solar Power Plant in Various Cities
                                           (Installed Capital Cost of $3.90 per Watt)
          City                               Annual Financing Cost*                        0.77 Derate          0.825 Derate
          El Paso, Texas                            $348,928.20                           -$193,831.20          -$182,643.20
          Austin, Texas                             $348,928.20                           -$221,400.20          -$212,079.20
          Bridgeport, Conn.                         $348,928.20                           -$140,756.20          -$125,395.20
          Columbus, Ohio                            $348,928.20                           -$246,263.20          -$238,674.20
          San Diego, Calif.                         $348,928.20                           -$139,589.20          -$124,400.20
          Miami, Fla.                               $348,928.20                           -$206,830.20          -$196,379.20
          Nashville, Tenn.                          $348,928.20                           -$238,292.20          -$230,165.20
          Phoenix, Ariz.                            $348,928.20                           -$190,790.20          -$179,406.20
          Anchorage, Alaska                         $348,928.20                           -$230,930.20          -$221,975.20
          Honolulu, Hawaii                          $348,928.20                            $ 16,494.80           $ 43,228.80
          New York, N.Y.                            $348,928.20                           -$149,469.20          -$134,756.20
          Charleston, W. Va.                        $348,928.20                           -$264,953.20          -$258,743.20
          Rapid City, S.D.                          $348,928.20                           -$239,381.20          -$231,385.20
         *Note: $3,900,000 loan at 6.5 percent interest.
         Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and
         author’s calculations.


          1,000 kilowatt array in West              The 2008 decline in incentives              shift in production of solar panels to
          Virginia generates less                was reversed, and their value rose             China caused the cost per kilowatt-
          than $100,000 a year.                  in 2009 and 2010.                              hour for solar cells to fall:38
        Installed Cost per Watt. The                The lower the price for                        ■■ In 2009, the average installed
     cost of new solar power plants fell         solar materials, assembly and                        cost of solar cells fell to $3.90
     and rose in recent years along with         construction, the greater the net                    per watt and in some cases
     incentives, subsidies, mandates and         revenue at any electric power price                  nearly fell to $2.33 per watt.
     other policies that encourage solar         point. Solar panels can make up
     power use:                                  nearly half the cost of solar systems.            ■■ The cost of solar photovoltaic-
       ■■ For commercial solar, the              Over the past 15 years, the cost                     generated electricity in sunny
          installed cost of solar with           of solar photovoltaic systems fell                   locations would have been
          incentives fell from $5.50 per         an average of 4 percent per year,                    approximately $0.22 to $0.25
          watt to $3.60 per watt in 2006.        whereas the price of electric power                  per kilowatt-hour in 2009,
                                                 has generally risen. In 2009 alone,                  absent subsidies and incentives
       ■■ By 2008 the installed cost             prices for solar panels dropped                      — well above the average
          rose to $4.80 per watt as cash         approximately 40 percent, notes                      residential price of electric
          incentives and government              Navigant Consulting.37 The most                      power in most locations.
          subsidies declined.36                  recent steep decline is due largely to
       ■■ Net of incentives, installed           the tremendous growth in China’s                 However, in 2009, as wages in
          costs ranged from $7.30 per            solar panel production, which                  China rose, and higher priced panel
          watt to $9.90 per watt in 2008.        resulted in a glut in the market. This         makers in the United States and

10
TABLE III
                            Annual Revenue Net of Capital Costs for a
                               Solar Power Plant in Various Cities
                                      (Installed Capital Cost of $2.50 per Watt)
      City                               Annual Financing Cost*                        0.77 Derate          0.825 Derate
      El Paso, Texas                            $223,671.96                           -$ 68,574.96           -$ 57,386.96
      Austin, Texas                             $223,671.96                           -$ 96,143.96           -$ 86,822.96
      Bridgeport, Conn.                         $223,671.96                           -$ 15,499.96           -$    138.96
      Columbus, Ohio                            $223,671.96                           -$121,006.96           -$113,417.96
      San Diego, Calif.                         $223,671.96                           -$ 14,332.96            $    856.04
      Miami, Fla.                               $223,671.96                           -$ 81,573.96           -$ 71,122.96
      Nashville, Tenn.                          $223,671.96                           -$113,035.96           -$104,908.96
      Phoenix, Ariz.                            $223,671.96                           -$ 65,533.96           -$ 54,149.96
      Anchorage, Alaska                         $223,671.96                           -$105,673.96           -$ 96,718.96
      Honolulu, Hawaii                          $223,671.96                            $141,751.04            $168,485.04
      New York, N.Y.                            $223,671.96                           -$ 24,212.96           -$ 9,499.96
      Charleston, W. Va.                        $223,671.96                           -$139,696.96           -$133,486.96
      Rapid City, S.D.                          $223,671.96                           -$114,124.96           -$106,128.96
    *Note: $2,500,000 loan at 6.5 percent interest.
    Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and
    author’s calculations.

abroad closed, the flood of low-cost         developer obtains financing that              able? Take a 1,000 kilowatt system,
panels ebbed. Thus, prices are               carries an interest rate higher or            with construction and installation
likely to rise.                              lower than the 6.25 percent rate              financed at a 6.25 percent interest
                                             used below, the price per watt                rate using three different prices
   Most analysts agree that solar            at which solar power becomes                  for installed solar cell modules:
will reach grid parity in a wide             profitable also changes. As                   the 2009 estimated average price
range of locations if the price              discussed below, the cost of                  of $3.90 per watt, $2.50 per watt
for panels falls toward $1 per               borrowing to finance large solar              and $1.50 per watt. The results are
watt. Indeed, at $1.50 per watt,             farms can be considerably higher              shown in Tables II, III and IV.
solar might be competitive with              than for other electric power
conventional generation sources                                                               ■■ At a cost of $3.90 per watt,
                                             developments. In addition, there
in locations with high average                                                                   only Hawaii generates enough
                                             is the uncertainty of continuing
                                                                                                 income to cover its annual loan
electric costs and/or good average           subsidies in the current fiscal
sunlight — producing power at                                                                    payments. [Table II.]
                                             situation. Indeed, some utilities
$0.10 to $0.15 per kilowatt-hour.39          are cancelling their contracts                   ■■ At $2.50 per watt and the
This is in the range of Obama                with solar developers.41                            higher 0.825 derate factor, San
administration estimates.40                                                                      Diego also barely covers its
                                                Profitability under Differ-                      note. [Table III.]
   Assumed Interest Rate on                  ent Installed Cost and Derate
Financing. The profit point is               Assumptions. In the same cities                  ■■ By contrast, when solar panels
significantly affected by changes            examined using PVWatts, at what                     reach $1.50 per watt, seven of
in interest rates. If a solar farm           price might solar become profit-                    the cities examined generate

                                                                                                                                   11
Solar Power Prospects


                                                                 TABLE IV
                                 Annual Revenue Net of Capital Costs for a
                                    Solar Power Plant in Various Cities
                                           (Installed Capital Cost of $1.50 per Watt)
           City                               Annual Financing Cost*                       0.77 Derate           0.825 Derate
           El Paso, Texas                          $134,203.20                               $ 20,893.80          $ 32,081.80
           Austin, Texas                           $134,203.20                              -$ 6,675.20           $ 2,645.80
           Bridgeport, Conn.                       $134,203.20                               $ 73,968.80          $ 89,329.80
           Columbus, Ohio                          $134,203.20                              -$ 31,538.20         -$ 23,949.20
           San Diego, Calif.                       $134,203.20                               $ 75,135.80          $ 90,324.80
           Miami, Fla.                             $134,203.20                               $ 7,894.80           $ 18,345.80
           Nashville, Tenn.                        $134,203.20                             -$ 23,567.20          -$ 15,440.20
           Phoenix, Ariz.                          $134,203.20                              $ 23,934.80           $ 35,318.80
           Anchorage, Alaska                       $134,203.20                             -$ 16,205.20          -$ 7,250.20
           Honolulu, Hawaii                        $134,203.20                              $231,219.80           $257,953.80
           New York, N.Y.                          $134,203.20                              $ 65,255.80           $ 79,968.80
           Charleston, W. Va.                      $134,203.20                             -$ 50,228.20          -$ 44,018.20
           Rapid City, S.D.                        $134,203.20                             -$ 24,656.20          -$ 16,660.20
         *Note: $1,500,000 loan at 6.5 percent interest.
         Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and
         author’s calculations.


          enough income to cover their            its capital costs at more locations           lower operating costs than solar
          financing even at the lower             and deliver greater income.                   — until the cost of fuel is factored
          derate factor; as the derate                                                          in. Still, though low, operations
          factor improves, eight cities             Additional Considerations.                  and maintenance do add to the cost
          can cover their loan payments.          There are a number of caveats to              and could push solar into the red
          [Table IV.]                             consider regarding the estimates              in those locations where profits
                                                  above.                                        at $1.50 per megawatt-hour are
        Only in Hawaii, however, do                                                             extremely modest.
     the solar arrays deliver more than              PVWatts calculations do not
     $100,000 in value above their                include operation and maintenance                The profit point is also
     annual loan payment.                         costs of the systems. One of the              significantly affected by even
                                                  selling points of fixed solar systems         modest changes in the interest
        The preceding examples used the           (as opposed to tracking arrays) is            rate obtained by the solar farm
     2010 average price of electricity            that, at $4.17 per megawatt-hour,             developer. If it is higher or lower
     for the state of each city examined.         its operating costs are lower than            than the one chosen for testing,
     Electric power prices fell in most           any competing energy source.42                then the price per watt at which
     of those locations from 2009 to              For instance, a solar farm, unlike a          minimum profit is obtained
     2010. But in almost all instances,           nuclear power plant or a coal-fired           changes. [See the sidebar,
     prices have risen over the past              power plant, does not require up to           “Financing Electric Power Plants.”]
     decade. If average electric power            hundreds of highly paid engineers
     prices rise, solar power could               for its daily operations. Combined              Note that the calculations above
     generate enough income to cover              cycle natural gas plants have even            do not include the substantial

12
cost involved in permitting,
environmental assessments and land
purchases or leases. They also do                    Financing Electric Power Plants
not include the cost of transmission        Financing costs are important to the viability of solar photovoltaic
lines or the rights of way, the             power plants. These cost vary considerably, depending on which type
share of the costs that should be           of entity develops the plant.
apportioned to a particular solar
development for redundant power                Publicly-Owned Utilities. Publicly-owned utilities include
or spinning reserves, or the costs          nonprofit electric cooperatives, and utilities owned by municipalities,
involved with fighting potential            states and the federal government. They have guaranteed service
lawsuits aimed at halting the               territories and face limited competition, but unlike investor-owned
construction of the solar farm.             utilities set their own rates and make their own decisions to build
Land conversion is especially an            power plants. A public utility usually finances a project with 100
issue where the use of public land          percent debt because it can obtain an interest rate below those charged
is proposed for a solar farm.44 [See        to publicly traded corporations due to the very low risk of defaulting
Appendix A, “Environmental and              on debt payments, and because the interest it pays is exempt from
National Security Considerations.”]         federal or state income taxes.
                                               Investor-Owned Utilities. State utility commissions set electric
   Some of these costs would
                                            rates and conditions of service of investor-owned utilities. Investor-
exist for almost any proposed
                                            owned utilities have guaranteed service territories and face limited
new power plant. For instance,
                                            competition. Investor-owned utilities must obtain the approval of
both nuclear and coal-fired power
                                            state utility commissions to build new power plants. Privately-owned
plants have substantial permitting
                                            power plants are financed with a mix of debt and equity. The cost of
and environmental assessment
                                            borrowing is higher because their debt is not tax exempt and they
costs, and each proposed plant has
                                            usually have lower credit ratings. The debt of the average electric
recently faced substantial legal
                                            utility is in the lower tier of investment grade (BBB) bonds.
challenges. In the case of nuclear
power, some states have banned the             Independent Power Producers. Most solar energy projects are
construction of new facilities.             developed by independent power producers, who sell wholesale power
                                            to utility and industrial buyers. They make their own decisions to build
                                            power plants and, within limits, can sell power at whatever price the
  Comparisons of                            market will bear. They do not have guaranteed service territories and
                                            can face intense competition for power sales. They face more financial
Current and Projected                       risk than regulated utilities — but can also earn larger profits.
 Costs of Solar and                             However, the debt of independent power producers often falls in
 Other Power Plants                         the speculative category and carriers a higher interest rate. As a result,
                                            even with federal grants covering 30 percent of the construction costs,
   The Obama administration and             it is difficult for solar companies whose projects have been approved
the most optimistic of solar power          to find additional financing.43
proponents argue that solar power
will reach widespread grid parity
in 2013 to 2015. However, recent
                                        and Other Generating Plants.              cycle natural gas power plant
studies projecting solar power costs
                                        A 2008 Congressional Research             being brought on-line in 2015.45
compared to other types of genera-
                                        Service (CRS) report compared
tion indicate that widespread grid
                                        the current dollar cost of building,         The study examined the demand
parity is much further in the future.
                                        operating and maintaining a               for and costs of new power plants
  A 2008 Projection of the              variety of electric power facilities      under a variety of conditions,
Cost of Solar Power Systems             to the cost of a new combined             including higher and lower natural

                                                                                                                         13
Solar Power Prospects


                                                                 TABLE V
                                                Capital Cost per Kilowatt
                                           Advanced          IGCC         Natural                                       Solar
                                            Coal*            Coal*         Gas            Nuclear        Wind        Photovoltaic
         National Base Project Cost           $2,844        $3,221         $ 978          $5,335         $2,438          $4,755
         Anchorage, Alaska                    $3,890        $4,252         $1,306         $6,208         $3,055          $5,702
         Phoenix, Ariz.                       $2,689        $3,074         $1,005         $5,214         $2,382          $4,461
         Los Angeles, Calif.                  $3,488        $3,858         $1,264         $5,845         $2,744          $5,213
         Hartford, Conn.                      $3,688        $4,057         $1,254         $6,124         $2,602          $5,094
         Tampa, Fla.                          $2,696        $3,078         $ 922          $5,226         $2,387          $4,539
         Honolulu, Hawaii                     $    0        $    0         $1,472         $    0         $3,108          $6,526
         New York, N.Y.                       $3,842        $4,170         $1,650         $6,058         $3,040          $6,494
         Cincinnati, Ohio                     $2,863        $3,246         $ 963          $5,385         $2,393          $4,535
         Rapid City, S.D.                     $2,519        $2,912         $ 902          $5,103         $2,457          $4,363
         Knoxville, Tenn.                     $2,574        $2,965         $ 896          $5,140         $2,329          $4,272
         Houston, Texas                       $2,555        $2,946         $ 893          $5,130         $2,322          $4,274
         Charleston, W. Va.                   $2,791        $3,172         $ 981          $5,298         $2,437          $4,652
        * Note: Advanced Pulverized Coal (APC) project cost was estimated, since there were no operating APC plants. IGCC is
        Integrated Gasification Combined Cycle (IGCC) Coal.
        Source: U.S. Energy Information Administration, “Updated Capital Cost Estimates for Electricity Generation Plants,” November
        2010. Available at http://tonto.eia.doe.gov/oiaf/beck_plantcosts/index.html.


     gas prices, requirements for carbon               hour ($255.41) for solar                prices, lower financing costs, lower
     capture, increases or decreases in                photovoltaic was two-and-a              capital costs and carbon capture and
     capital costs relative to a combined              half times more than its nearest        storage requirements), solar power
     cycle gas power plant (used as                    competing technology (solar             plants had significantly higher
     a “base case” for comparison),                    thermal).                               annualized costs than competing
     and changes in financing terms                                                            electricity sources.
     relative to natural gas prices. The            ■■ It was four times more
                                                       expensive than a pulverized                Natural gas power plants are
     results of the CRS comparison are                                                         inexpensive to build relative to
     expressed as annualized costs: the                coal plant, and more than
                                                       two-and-a-half times more               other major sources for electricity
     present value of the total cost of                                                        but the variability of natural gas
     building, operating and maintaining               expensive than either an
                                                       integrated combined cycle coal          prices can make the plants a very
     an electricity generating facility                                                        expensive power source. However,
     over its financial life converted to              plant, a nuclear power plant or
                                                       a land-based wind power plant.          the price of natural gas would have
     equal annual payments, amortized                                                          to rise to and remain at 635 percent
     over the expected annual power                 ■■ It was more than four times as          of its 2008 level in order for solar
     generation from an expected duty                  expensive as a combined cycle           to match the price of electricity
     cycle. Among the results:                         gas plant.                              produced by a natural gas plant.
       ■■ In the base case, the total              Even under conditions most                    The only change the CRS
          annualized cost per megawatt-          favorable to solar (higher gas                examined that raised the cost of

14
the other electric power sources        including labor costs and inflation.       Solar’s annualized cost is
within less than half of the            Since many of the EIA’s locations       significantly higher than almost
annualized cost of a solar plant        were not an exact match to the          every other generating technology,
were carbon controls. Assuming          cities simulated in the PVWatts         due primarily to three factors: a
the government set a requirement        calculations above, the in-state        low capacity factor (the relatively
that fossil fuel power plants           location closest to the comparable      small amount of energy it can
capture 90 percent of the carbon        PVWatts location is used. As shown      be expected to deliver daily), a
produced, the CRS estimates that        in Table V:                             higher than average transmission
solar would still be two-and-a-half                                             cost and a shorter useful life
                                          ■■ The projected average capital
times as expensive as its closest                                               than comparable facilities. For
                                             cost for natural gas is $978
rival, integrated combined cycle                                                instance, using EIA data, the
                                             per kilowatt-hour, and the
coal. Under this scenario, if price                                             Institute for Energy Research, a
                                             location-specific estimated cost
were the only consideration,                                                    private group that analyzes the
                                             ranges from $893 in Houston,
geothermal power would become                                                   economics of energy, estimates:47
                                             Texas, to $1,650 in New York
the electric provider of choice.
                                             City, New York.                      ■■ The average annualized cost of
   A More Recent Projection of                                                       an advanced combined cycle
                                          ■■ The average cost for wind
the Cost of Solar Power Farms                                                        natural gas plant is $63.10 per
                                             power is $2,438 and ranges
and Other Generating Plants.                                                         megawatt-hour.
                                             from $2,322 in Houston,
The price of solar cells has fallen
                                             Texas, to $3,108 in Honolulu,        ■■ The average annualized cost
considerably since the CRS report.
                                             Hawaii.
Moreover, the efficiency of solar                                                    of an advanced nuclear plant is
cells has improved. Thus, recent          ■■ The average for solar                   $113.90 per megawatt-hour.
reports indicate that the cost of            photovoltaic power is $4,755
                                                                                  ■■ The average annualized cost of
centralized solar has fallen relative        and ranges from $4,272 in
                                                                                     an advanced coal-fired power
to other sources.                            Knoxville, Tenn., to $6,526 in
                                                                                     plant (with carbon capture
                                             Honolulu, Hawaii.
   In November 2010, the EIA                                                         technology) is $136.20 per
issued “Updated Capital Cost               Table V shows that even with              megawatt-hour.
Estimates for Electricity Generation    increased costs associated with coal,
Plants.” While the costs for            nuclear and wind power plants, and        ■■ The average annualized cost
natural gas plants remained largely     substantial declines in the cost of          of a solar photovoltaic plant is
unchanged, the capital costs for        solar, there is no location where            $210.70 per megawatt-hour.
new coal-fired, nuclear and even        solar’s capital costs match or beat       Thus, while the average
wind power plants increased             any competing electric generating       annualized cost of solar power has
considerably — on average, 25           technology, with the exception of       declined markedly since 2008 from
percent higher for coal-fired and       nuclear power.                          $255.41 to $210.70, it is still much
nuclear power plants, and 21                                                    more expensive than other electric
percent higher for wind farms. By          Annualized Cost of a Solar
                                        Power System over Its Operating         power generating technologies.
contrast, solar fell 10 percent due
to increasing economies of scale        Life. As the EIA notes, and as             Since costs vary considerably
and falling component costs.46          discussed above, capital costs are      within regions, the EIA also
                                        only one factor in determining          provided a minimum and a
   The 2010 EIA report provides         the viability and attractiveness of     maximum estimated cost for each
both a national base case, or           competing generating technologies.      of the generating technologies. As
average estimated cost, and             Many might argue that the               shown in Figure I:
location-specific estimated costs       annualized cost of newly built
for varying electric generating         electricity generating facilities is      ■■ Total annualized costs for
technologies. The EIA’s calculations    the most important measure of the            natural gas range from $57 to
consider a variety of factors           viability of solar power.                    $71 per megawatt-hour.

                                                                                                                        15
Solar Power Prospects


                                                                   FIGURE I
              Range for Total System Annualized Cost (2009 $/megawatt-hour)
                                                                                                                            $324
                                                                                         Minimum          Maximum




                                        $155                                                                        $159

                                $126                                              $121
                   $111                                                   $110                         $115
            $86                                                                                 $82
                                                              $71
                                                      $57



               Coal           Advanced Coal          Natural Gas           Advanced               Wind                 Solar
                                                                            Nuclear                                 Photovoltaic

         Source: U.S. Energy Information Administration, “Levelized Cost of New Electricity Generating Technologies,” Table 2, 2010.
         Available at http://www.eia.doe.gov/oiaf/aeo/electricity_generation.html.


       ■■ Total costs range from $86 to              Grid Parity: When?                         to secure long-term financing and
          $111 per megawatt-hour for                                                            investment.49 These subsidies are,
          coal-fired power plants.                   Based on the EIA’s most recent             in fact, driving the cost declines in
                                                  assessment of annualized costs,               solar materials. Artificial demand
       ■■ Annualized costs for advanced           solar is unlikely to be competitive           is stoking expanded production,
          nuclear power plants range              with conventional generating                  which is in turn lowering the costs
          from $110 to $121 per                   technologies by 2015 — the Obama              of delivered solar arrays.
          megawatt-hour.                          administration’s optimistic forecast.
                                                  Indeed, to be competitive by 2015,               Even with subsidies, a 20 percent
       ■■ And total annualized costs range        solar’s annualized costs would                average decline in price is unlikely.
          from $159 to $324 per megawatt          have to decline approximately                 A 10 percent average decline might
          hour for solar power plants.            10 percent each year. To reach                be possible, but subsidies would
       Even under the best conditions,            widespread grid parity by 2013,               have to remain at or above where
     solar’s minimum annualized cost              it would have to fall nearly 20               they are currently. [See Appendix
     ($158.70 per megawatt-hour) is               percent each year. For solar to reach         B, “The End of Subsidies.”]

                                                                                                           Conclusion
     higher than the maximum cost for             widespread grid parity in such a
     each of the technologies considered,         short time would require continued
     though only slightly so in the case of       substantial government support and,             Grid parity will be reached in
     advanced coal with carbon capture            as importantly, the expectation that          some locations sooner than in
     ($154.50 per megawatt-hour).48               such support will continue in order           others, but it is still at least a decade

16
away in most places. It will be         but this expansion comes at the            significantly displace species by
reached sooner if electric power        expense of native plant and animal         making the land permanently
prices begin to rise again, rather      habitats. The Mojave Solar Park            uninhabitable. Surveys have found
than falling in conjunction with the    under construction in Southern             25 desert tortoises on the site.58
price of natural gas as they have       California is one such example. It             Attempting to assuage critics,
in the last two years. Widespread       will require up to 6,000 acres for         Brightsource Energy, the project
parity in either 2013 or 2015 is        an expected 553 megawatts of solar         developer, has agreed to acquire
highly unlikely.                        power.50 In contrast, a coal-fired         thousands of acres of habitat to
                                        plant can generate over 6,000              offset the damage. However, it is
   It is also important to note that
                                        megawatts of power on less than            unclear that this will halt the lawsuit
if and when solar photovoltaic-
                                        1,000 acres.51                             or, more importantly, protect
generated electric power reaches
widespread grid parity, it will still      In the rush to get large solar          the tortoise. Animal relocations
make up only a small part of the        projects approved before a 30              are not always successful and
overall electric power mix. Thus,       percent federal grant program for          it is uncertain whether the
it will always be supplemental          construction costs expired at the          desert tortoises will thrive on
to generating technologies that         end of 2010, a number of new               the proposed set-aside land.
can provide consistent baseload         and existing companies applied
                                                                                      Plants May Need to Be Bigger.
power or on-demand peaking              to build solar farms on public
                                                                                   The large solar developments
power — neither of which solar          land in California.52 There were
                                                                                   proposed on federal lands in
photovoltaic can satisfy.               nine projects approved in 2010,
                                                                                   California are solar thermal
                                        encompassing over 40,000 acres
                                                                                   rather than solar photovoltaic.
                                        and able to produce roughly 4,500
          Appendix A                    megawatts.53 Though approved
                                                                                   This is important because solar
                                                                                   thermal plants require fewer acres
  Environmental and                     initially, concern over the risk to
                                                                                   to produce the same amount of
                                        various threatened and endangered
   National Security                    species and historic cultural
                                                                                   electricity. If plans for the solar
                                                                                   thermal plants are revised and
    Considerations                      artifacts threaten to block the            solar photovoltaic is used instead,
                                        projects. Environmental groups
   Some advocate solar power for                                                   hundreds of acres more could be
                                        fear the desert tortoise — listed as
perceived environmental and energy                                                 needed for each project.59
                                        “vulnerable” by the International
security-related benefits rather than   Union for Conservation of                     In addition, rated capacity is not
economic considerations. However,       Nature — and other species,                the same as expected power output.
these advocates largely ignore the      ranging from reptiles to sheep, are        For instance, the capacity factor for
negative environmental impacts          at risk.54, 55 Some environmental          coal-fired plants is 85 percent, so
that solar power generation has on      groups have filed lawsuits against         a 1,200 megawatt plant would on
the environment. Like any power         the federal government over                average produce 1,020 megawatts
source, there are both benefits and     its approval of the projects.              of electricity.
costs associated with electric power       The proposed Ivanpah solar plant           By contrast, solar photovoltaic’s
generated from solar photovoltaic       is at the center of a suit filed against   capacity factor is quite low. Areas
technology.                             the U.S. Department of the Interior,       of high sunlight might have a
   Solar Sprawl. The term solar         the Bureau of Land Management              capacity factor of 23 percent, but in
sprawl has been used to refer to        and the Fish and Wildlife Service.         areas of only moderate sunlight the
the large land and resource usage       The plaintiffs argue that the 370          capacity factor falls to 11 percent.60
that accompanies expanding solar        megawatt operation was approved            Thus, to produce the same amount
energy projects. Solar farms often      without adequate attention to              of energy on average as a typical
require huge tracts of land in          the effect on animals, as well as          nuclear or coal-fired power plant, a
previously undeveloped areas in         plants and groundwater.56, 57 The          solar photovoltaic farm would have
order to maximize energy output,        suit claims construction could             to be more than three times larger

                                                                                                                             17
Solar Power Prospects


                                                                                    As a result, imports of tellurium
                                                                                    have soared along with the price.
             Federal and State Subsidies under Fire
                                                                                       ■■ From 2003 to 2007 China
         The House of Representatives substantially reduced funding for
                                                                                          supplied 13 percent of the
         various renewable technologies in its proposed budget for the
                                                                                          United States’ imported
         remainder of fiscal year 2011. Though all these cuts might not be
                                                                                          tellurium.
         enacted, less support in this and coming years seems likely from a
         Congress interested in reducing the budget deficit and national debt.         ■■ By September 2010, China’s
                                                                                          share of U.S. tellurium imports
            Even solar firms that have already received substantial government            had grown to 43 percent,
         support are experiencing difficulties in the current uncertain                   making China the single
         investment environment. For instance, Solyndra Inc., a solar panel               biggest source of imported
         manufacturer touted by President Obama as a model of a green                     tellurium.
         energy future, received $535 million in taxpayer loans to finance a
         new factory that would create 1,000 new jobs. Instead, it will close          ■■ The U.S. Geological Survey
         an existing factory and keep its workforce at present levels.64 While            notes that the price of tellurium
         its sales have grown in recent years, Solyndra has yet to make a                 increased 14-fold between
         profit. In July 2010 it withdrew plans for an initial public stock               2002 and 2006, and seven-fold
         offering.65                                                                      between 2004 and 2006.
                                                                                       Not only does China have the
            In Massachusetts, despite receiving more than $58 million in
                                                                                    only mine devoted to tellurium
         grants, loans and tax incentives in 2007 from the state (in addition
                                                                                    production, a Chinese company is
         to federal support), Evergreen Solar decided to close its doors and
                                                                                    the largest single producer of the
         start a joint venture in China. Eight hundred workers are being
                                                                                    highly purified tellurium needed
         laid-off. One of the largest incentive packages offered to a company
                                                                                    for thin-film solar cells. The top
         in Massachusetts history was not enough to keep Evergreen, with its
                                                                                    American producer of thin-film
         $685 million in cumulative losses, in the state.66
                                                                                    photovoltaic solar cells, First Solar,
                                                                                    is already the Chinese company’s
                                                                                    largest tellurium customer. China’s
                                                                                    share of world tellurium production
     in terms of rated capacity in sunny     on China. The U.S. push for a larger   will likely grow since it has also
     areas and seven to eight times larger   “green” economy comes at a time        become the world’s largest producer
     in less sunny areas. This would         when China is expanding its own        and user of copper.
     increase the size of any solar farm’s   position in the solar power market.
     footprint considerably — adding up      In 2003 China produced around 1           China has cut off supplies of
     to tens of thousands of acres.          percent of the world’s solar panels,   critical minerals to countries with
                                             but by 2010 its market share had       which they have geopolitical
        National Security. Though solar      increased to 43 percent.61             conflicts. For example, on
     power is called a renewable energy                                             September 7, 2010, a Chinese
     source, the components required            Tellurium is also produced as a     fishing boat collided with a Japanese
     for installations can be difficult      byproduct of copper purification.      coast guard vessel in a disputed
     to obtain. For example, the rare        As such, a number of countries         portion of the East China Sea. When
     element tellurium is a necessary        produce quantities of tellurium.       Japan refused to release the captain,
     component in photovoltaic cells         However, domestically, the             China retaliated by withholding
     used in solar panels, but there is      decline in lead mining and             exports of rare earths used in
     currently only one tellurium mine on    move to lower grades of copper         electronics production.62 This is
     the entire planet — in the People’s     ore — which require a different        consistent with China’s overall
     Republic of China. This means that      refining process — has reduced         strategy of restricting export of rare
     U.S. production of solar cells relies   domestically recovered tellurium.      elements. Consider:

18
■■ China has eliminated export        2010, EU countries accounted                The reduced incentives in Europe
     tax rebates for rare earth         for more than 70 percent of              and North America will likely lead
     elements while increasing          solar energy demand. In 2009,            to a worldwide fall in demand for
     export taxes to rates as high as   Germany’s market alone accounted         solar panels. This will slow the
     25 percent.                        for 54 percent of the solar panels       decline of solar array prices that has
  ■■ Further, China reduced its         produced. These subsidies have           resulted from economies of scale in
     export quota 40 percent from       been economically costly, due to         production. As noted earlier, in the
     2009 to 2010.                      higher energy prices and direct          past, when subsidies for solar power
                                        energy levies.                           were reduced, its use declined sig-
   This comes just as the U.S.
                                           For example, Germany’s renew-         nificantly and prices for both panels
government is pushing technologies                                               and the power ceased to decline, or
                                        able energy act required utilities to
that rely on these elements.63                                                   declined at a much slower rate.
                                        pay generous prices — called feed
                                        in tariffs — for electricity produced       Threats to U.S. Renewables
          Appendix B                    by renewables. As a result, renew-       Portfolios. Even demand driven
                                        able power grew from 6 percent           by renewable portfolio standards
   The End of Energy                    of generating capacity in 2000 to        are under threat. In his State of the
       Subsidies                        16 percent in 2009.67 Solar power        Union address, President Obama
                                        is less than 2 percent of the total.     lumped natural gas, clean coal
   Under the economic conditions        The feed in tariff was €0.39 (about      and nuclear power in with wind
facing governments around the           $0.54) — eight times the price Ger-      and solar as clean fuels of the
world, the current level of support     mans pay for power generated by          future. Some state legislatures are
for solar developments is unlikely      conventional fossil fuels. However,      considering transforming renewable
to continue. A program that             due to fiscal constraints as a result    portfolio standards into clean
provides federal grants for up to       of the global economic recession,        energy standards, which would
30 percent of construction costs        the German government has cut            allow natural gas, clean coal or
was continued for a year in the         tariffs for large solar power facili-    nuclear generated electricity to
tax bill passed in December 2010.       ties by 25 percent and for individual    count toward the overall energy
But even so, solar developers are       roof-top solar energy production by      goal. If this occurs, solar demand
finding it difficult to finance the     15 percent. Further cuts are likely.68   will further decline.
other 70 percent of construction           Spain, the world’s largest               Thus, it seems unlikely that solar
costs. In part, this is because there   solar power producer, has spent          power costs will continue to decline
is uncertainty concerning whether       more than €23 billion (about $32         at the historically high rates they
the grant program and the other         billion) since 2002 supporting           have in the past couple of years.
subsidies and mandates that have        the industry.69 However, the             The decline in solar generated
pushed solar growth in the past few     government is reducing support           electricity prices will arguably
years will be continued. At least at    for existing plants by more than 30      return to its historic average of
current levels, such support seems      percent and for new plants by 45         4 percent per year, absent the
unlikely. [See sidebar, “Federal and    percent. As a result, Spain’s solar      tremendous government support
State Subsidies.”]                      energy lobbying group predicts           that drove the recent phenomenal
   Fewer Economies of Scale Due         many solar companies will default        but aberrant decline. If it does, all
to Slowing Global Solar Power           on their debt.70                         else equal, it would not become cost
Growth. Events in Europe make it           France has also indicated that it     competitive on an annualized basis
even less likely that solar’s recent    will implement a moratorium on           with nuclear power until after 2020.
rate of growth and cost decline         new solar projects that are eligible     In addition, it would take longer
will continue. The European Union       for tariffs, and the United Kingdom      to match the price of electricity
has been the leader in installing       and Canada might also reconsider         generated by coal-fired and natural
solar. Indeed, from 2007 through        their tariffs.                           gas power plants.

                                                                                                                          19
Solar Power Prospects

                                                                    Endnotes
     1.
           United States Energy Information Administration, “Electric Power Annual,” January 4, 2011. Available at http://www.eia.doe.gov/cneaf/
           electricity/epa/epa_sum.html. Access verified April 19, 2011.
     2.
           Weston A. Hermann, “Quantifying Global Energy Resources,” September 2006. Available at http://gcep.stanford.edu/pdfs/GCEP_Exergy_
           Poster_web.pdf. Access verified April 19, 2011.
     3.
           Renewable Energy Policy Network, “A Global Status Report,” July 2010. Also, United Nations Environment Programmed, “Global Trends
           in Green Energy 2009,” July 2010. Available at http://sefi.unep.org/fileadmin/media/sefi/docs/publications/FINAL_UNEP-REN21_Press_
           Release_post_embargo.pdf. Access verified April 19, 2011.
     4.
           National Renewable Energy Laboratory, “Concentrating Solar Power.” Available at http://www.nrel.gov/learning/re_csp.html. Access
           verified April 19, 2011.
     5.
           Materials presently used for panels include monocrystalline silicon, polycrystalline silicon, cadmium telluride and copper indium selenide/
           sulfide. Mark Z. Jacobson, “Review of Solutions to Global Warming, Air Pollution and Energy Security,” Energy and Environmental
           Science, December 2008, pages 148-173. Available at http://www.stanford.edu/group/efmh/jacobson/EnergyEnvRev1008.pdf. Access
           verified April 19, 2011.
     6.
           International Energy Agency, “Technology Roadmap, Solar Voltaic Energy,” 2010. Available at http://www.iea.org/papers/2010/
           pv_roadmap.pdf. Access verified April 19, 2011.
     7.
           Joachim Luther and Armin Aberle, “Photovoltaics — Technology Paths Towards Grid Parity,” May 2010. Available at http://www.seris.sg/
           site/servlet/linkableblob/main/3272/data/pdf_lu_solarcon_210510-data.pdf. Access verified April 19, 2011.
     8.
           Solar Server, “Photovoltaics: Solar Electricity and Solar Cells in Theory and Practice.” Available at http://www.solarserver.com/
           knowledge/basic-knowledge/photovoltaics.html. Access verified April 19, 2011.
     9.
           International Energy Agency, “World Energy Outlook, 2006.” Available at http://www.iea.org/weo/2006.asp. Access verified April 19,
           2011.
     10.
           Global Subsidies Initiative, “Relative Subsidies to Energy Sources, GSI Estimates,” April 2010. Available at http://www.globalsubsidies.
           org/files/assets/relative_energy_subsidies.pdf. Access verified April 19, 2011.
     11.
           Energy Information Administration, “Federal Financial Interventions and Subsidies in Energy Markets 2007,” April 2008. Available at
           http://www.eia.doe.gov/oiaf/servicerpt/subsidy2/index.html. Access verified April 19, 2011.
     12.
           Alex Morales, “Renewable Energy Subsidies Worldwide Reached $57 Billion in 2009, IEA Says,” Bloomberg, November 10, 2010.
           Available at http://www.bloomberg.com/news/2010-11-09/renewable-energy-subsidies-worldwide-reached-57-billion-in-2009-iea-says.
           html. Access verified April 19, 2011.
     13.
           Energy Information Administration, “Federal Financial Interventions and Subsidies in Energy Markets 2007.”
     14.
           The remaining subsidies were for electric power production (not fuel specific), consumer subsidies and conservation programs. Ibid.
     15.
           Ibid.
     16.
           Ibid.
     17.
           Ryan Wiser and Galen Barbose, “Renewable Portfolio Standards in the United States,” Lawrence Berkeley National Laboratory, April,
           2008. Available at http://eetd.lbl.gov/ea/emp/reports/lbnl-154e-revised.pdf. Access verified April 19, 2011.
     18.
           Ibid.
     19.
           Andrew Mills et al., “Understanding Variability and Uncertainty on Photovoltaics for Integration with the Electrical Power System,” Ernest
           Orlando Lawrence Berkeley National Laboratory, December 2009. Available at http://eetd.lbl.gov/EA/EMP. Access verified April 19, 2011.
     20.
           Paul Davidson, “Wind Energy Confronts a Shortage of Transmission Lines,” USA Today, February 26, 2008. Available at http://www.
           usatoday.com/money/industries/energy/environment/2008-02-25-wind-power-transmission_N.htm. Access verified April 19, 2011.
     21.
           Peter Ng, “Draft Unit Costs Guidelines for Transmission Lines,” 2009. Available at http://www.caiso.com/2360/23609c2864470.pdf.
           Access verified April 19, 2011.
     22.
           “The Great Transmission Heist,” Wall Street Journal, November 7, 2010. Available at http://online.wsj.com/article/SB10001424052702304
           772804575558400606672006.html. Access verified April 19, 2011.
     23.
           Ibid.
     24.
           Andrew Mills and Ryan Wiser, “Implications of Wide-Area Geographic Diversity for Short-Term Variability of Solar Power,” Ernest
           Orlando Lawrence Berkeley National Laboratory, September 2010. Available at http://eetd.lbl.gov/ea/emp/reports/lbnl-3884e.pdf. Access
           verified April 19, 2011.
     25.
         	 White House, “The Recovery Act: Transforming the American Economy Through Innovation,” August 2010. Available at http://www.
           whitehouse.gov/recovery/innovations/clean-renewable-energy. Access verified April 19, 2011.
     26.
         	 Robert Bradley, Jr., “Solar Is Not an Infant Industry (So why is it perpetually hyped and subsidized?),” MasterResource, October 6, 2009.
           Available at http://www.masterresource.org/2009/10/solar-is-not-an-infant-industry-so-why-it-is-perpetually-hyped-and-subsidized/. Access
           verified April 19, 2011.

20
27.
   	 Robert Bradley, Jr., “Will Renewable Become Cost-Competitive Anytime Soon?” Institute for Energy Research, April 1, 2009. Available
     at http://www.instituteforenergyresearch.org/2009/04/01/will-renewables-become-cost-competitive-anytime-soon-the-siren-song-of-wind-
     and-solar-energy/. Access verified April 19, 2011.
28.
   	 Barry Commoner, The Poverty of Power (New York: Alfred A. Knopf, 1976), page 151.
29.
   	 Robert Bradley, Jr., “Will Renewable Become Cost-Competitive Anytime Soon?”
30.
   	 Renewable Energy Industry, testimony before the joint hearings of Subcommittees of the Committee on Energy and Commerce, 98th
     Congress, 1st Session. (Washington, D.C.: Government Printing Office, 1983), page 52.
31.
   	 Quoted in K. Wells, “As a National Goal, Renewable Energy Has An Uncertain Future,” Wall Street Journal, February 13, 1986.
32.
   	 Christopher Flavin and Nicholas Lenssen, Beyond the Petroleum Age: Designing a Solar Economy (Washington, D.C.: Worldwatch
     Institute, 1990), page 47.
33.
   	 Peter Lorenz, Dickon Pinner and Thomas Seitz, “The Economics of Solar Power,” McKinsey Quarterly, June 2008. See also, Balu
     Balagopal, Petros Paranikas and Justin Rose, “What’s Next for Alternative Energy?” Boston Consulting Group, November 2010. Available
     at http://www.bcg.com/documents/file65187.pdf. Access verified April 19, 2011.
34.
  	 Paul Denholm et al., “Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities,” National
    Renewable Energy Laboratory, Publication No. NREL/TP-6A2-46909, December 2009. Available at http://www.nrel.gov/docs/
    fy10osti/46909.pdf. Access verified April 19, 2011.
35.
  	 Matt Croucher, “Optimal Deployment of Solar Index,” Electricity Journal, Vol. 23, No. 9, November 2010, pages 75-81.
36.
   	 Ryan Wiser et al., “Tracking the Sun II, the Installed Cost of Photovoltaics 1998-2008,” Lawrence Berkeley National Laboratory, October
     2009. Available at http://eetd.lbl.gov/ea/emp/reports/lbnl-2674e.pdf. Access verified April 19, 2011.
37.
   	 Blue Pacific Solar Blog, “Solar Grid Parity, the Break-Even Point for PV is Beginning to Emerge,” November 16, 2010. Available at http://
     www.bluepacificsolar.com/blog/?p=1664. Access verified April 19, 2011.
38.
   	 Joonki Soong et al., “The True Cost of Solar Power: Race to $1/W,” Photon Consulting, 2009. Available at http://www.photonconsulting.
     com/the_true_cost_of_solar_power_race_to_1w.php. Access verified April 19, 2011.
39.
   	 Ibid. See also, Dave Cavanaugh, “The New Solar Market, Pike Research,” 2010. Available at http://www.pikeresearch.com/research/
     the-new-solar-market. Access verified April 19, 2011. And, Balu Balagopa, Petros Parnikis and Justin Rose, “What’s Next for Alternative
     Energy?”
40.
   	 White House, “The Recovery Act: Transforming the American Economy Through Innovation.”
41.
   	 Todd Woody, “Dark Days for Solar? Huge California Project Sold Off,” November 30, 2010. Available at http://www.grist.org/article/2010-
     12-30-huge-california-solar-project-sold/. Access verified April 29, 2011.
42.
   	 Energy Information Administration, “Updated Capital Cost Estimates for Electricity Generation Plants,” November 2010. Available at
     http://tonto.eia.doe.gov/oiaf/beck_plantcosts/index.html. Access verified April 19, 2011.
43.
   	 In California, for example. Eric Wolff, “Solar Panel Costs Fall, but Utility Costs Rise,” North County Times, November 19, 2010.
44.
   	 Todd Woody, “Solar Energy Faces Test on Greenness,” New York Times, February 23, 2011.
45.
   	 Stan Kaplan, “Power Plants: Characteristics and Costs,” CRS Report for Congress. Available at http://www.fas.org/sgp/crs/misc/RL34746.
     pdf. Access verified April 19, 2011.
46.
   	 Energy Information Administration, “Updated Capital Cost Estimates for Electricity Generation Plants.”
47.
  	 Institute for Energy Research, “Levelized Cost of New Electricity Generating Technologies,” February 2010. Costs in 2016 using 2010
    dollars.
  	 These figures shown do not include various federal and state financial incentives and subsidies, which would, of course, affect the relative
48.

    costs of the various technologies.
49.
  	 Energy Information Administration, “Federal Financial Interventions and Subsidies in Energy Markets 2007,” April 2008. Available
    at http://www.eia.doe.gov/oiaf/servicerpt/subsidy2/index.html. Access verified April 19, 2011. Joachim Luther and Armin Aberle,
    “Photovoltaics — Technology Paths Towards Grid Parity.” Peter Lorenz, Dickon Pinner and Thomas Seitz, “The Economics of Solar
    Power.” Balu Balagopal, Petros Paranikas and Justin Rose, “What’s Next for Alternative Energy?” International Energy Agency,
    “Technology Roadmap, Solar Photovoltaic Energy.” White House.gov, “The Recovery Act: Transforming the American Economy Through
    Innovation.” Paul Denholm et al., “Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities,”
    National Renewable Energy Laboratory, December 2009. Available at http://www.nrel.gov/docs/fy10osti/46909.pdf. Access verified April
    19, 2011. Christopher Flavin and Nicholas Lenssen, Beyond the Petroleum Age: Designing a Solar Economy.
50.
   	 Amir Ben David, “Israeli Company to Build Largest Solar Park in World in US,” YNET News Online, July 27, 2007. Available at http://
     www.ynetnews.com/articles/0,7340,L-3430085,00.html. Access verified April 19, 2011.
51.
   	 InfoMine Online, “Only Fools Pay for Wind Power,” June 2, 2010. Available at http://www.infomine.com/publications/docs/
     Boleneus2010b.pdf. Access verified April 19, 2011.

                                                                                                                                                   21
Solar Power Prospects

     52.
        	 Todd Woody, “Warp Speed for Risky Solar Ventures,” New York Times Online, October 29, 2010. Available at http://green.blogs.nytimes.
          com/2010/10/29/warp-speed-for-risky-ventures. Access verified April 19, 2011.
     53.
        	 U.S. Department of the Interior Bureau of Land Management, “Fast Track Renewable Energy Projects,” updated September 27, 2010.
          Available at http://www.blm.gov/ca/st/en/fo/cdd/alternative_energy/fast-trackfastfacts.html. Access verified April 19, 2011.
     54.
        	 IUCN Red List of Threatened Species, “Gopherus agassizii (Desert Tortoise),” International Union for Conservation of Nature, 2010.
          Available at http://www.iucnredlist.org/apps/redlist/details/9400/0. Access verified April 19, 2011.
     55.
        	 Todd Woody, “For the Desert Tortoise, a Threat and an Opportunity,” New York Times Online, November 17, 2010. Available at http://
          green.blogs.nytimes.com/2010/11/17/for-the-desert-tortoise-a-threat-and-an-opportunity. Access verified April 19, 2011.
     56.
        	 Todd Woody, “Native American Group Sues to Block California’s Big Solar Projects,” Grist, December 29, 2010. Available at http://www.
          grist.org/article/2010-12-29-native-american-group-sues-to-block-californias-big-solar. Access verified April 19, 2011.
     57.
        	 Nichola Groom, “Conservation Group Sues to Stop California Solar Plant,” Reuters Online, January 17, 2011. Available at http://www.
          reuters.com/article/2011/01/17/us-brightsource-idUSTRE70G0VB20110117. Access verified April 19, 2011.
     58.
        	 Paul Danish, “How To Stop Worrying and Save the Desert Tortoise,” Boulder Weekly Online, March 25, 2010. Available at http://www.
          boulderweekly.com/article-2109-how-to-quit-worrying-and-save-the-desert-tortoise.html. Access verified April 19, 2011.
     59.
        	 Patrick O’Grady, “Tessera Solar Sells California Project to K Road Sun,” Phoenix Business Journal, December 29, 2010. Available at
          http://www.bizjournals.com/phoenix/news/2010/12/29/tessera-sells-california-project.html. Access verified April 19, 2011.
     60.
        	 International Energy Agency, “Technology Roadmap, Solar Voltaic Energy,” 2010. Available at http://www.iea.org/papers/2010/
          pv_roadmap.pdf. Access verified April 19, 2011.
     61.
        	 H. Sterling Burnett and Wesley Dwyer, “Will Green Energy Make the United States Less Secure?” National Center for Policy Analysis,
          Brief Analysis No. 739, February 10, 2011. Available at http://www.ncpa.org/pub/ba739. Access verified April 19, 2011.
     62.
        	Ibid.
     63.
        	Ibid.
     64.
        	 George Avalos, “Freemont Solar Panel Maker Solyndra Scales Back Expansion Plans,” Oakland Tribune, November 3, 2010.
     65.
        	 Poornima Gupta, “Solyndra Withdraws IPO, Raises $175 Million,” Reuters, June 18, 2010. Available at http://www.reuters.com/
          article/2010/06/18/solyndra-ipo-idUSN1814596320100618. Access verified April 19, 2011.
     66.
        	 “Solar Power Eclipse,” Wall Street Journal, January 18, 2011. Available at http://thegwpf.org/opinion-pros-a-cons/2247-solar-power-
          eclipse.html. Access verified April 19, 2011.
     67.
        	 Datamonitor, “Feed in Tariffs in Germany: Consumers Are Paying the Price for Renewable Energy Development,” October 25, 2010.
          Available at http://www.datamonitor.com/store/News/feed_in_tariffs_in_germany_consumers_are_paying_the_price_for_renewable_
          energy_development?productid=E0D6E46B-6C78-49B5-A570-0E145688F9CD. Access verified April 19, 2011.
     68.
        	 Markus Wacket, “Germany to Slash Solar Panel Subsidies,” Reuters, January 20, 2010.
     69.
        	 Eric Reguly, “Austerity Pulling Plug on Europe’s Green Energy Subsidies,” The Globe and Mail (Canada), January 26, 2011.
     70.
        	Ibid.




                                                           About the Author
                 H. Sterling Burnett is a senior fellow at the National Center for Policy Analysis. His
                 work primarily focuses on the intersection between ethics, economics and politics
                 in relation to environmental issues. He has numerous publications to his credit in
                 academic journals, magazines and daily newspapers, including Environmental Ethics,
                 Ethics, the Texas Review of Law & Politics, the Washington Post, USA Today and
                 Forbes. He has provided invited testimony before the United States Congress and
                 to various state legislatures. Burnett received his Ph.D. in Philosophy from Bowling
                 Green State University in Ohio in 2001.
                 Burnett blogs about environmental issues and more at www.environmentblog.ncpa.org.



22
About the NCPA


                                                                                             A major NCPA study, “Wealth, Inheri-
 The NCPA is a nonprofit, nonpartisan organization established in                            tance and the Estate Tax,” completely
 1983. Its aim is to examine public policies in areas that have a                            undermines the claim by proponents of the
 significant impact on the lives of all Americans — retirement, health                       estate tax that it prevents the concentration
                                                                                             of wealth in the hands of financial
 care, education, taxes, the economy, the environment — and to                               dynasties. Actually, the contribution of
 propose innovative, market-driven solutions. The NCPA seeks to                              inheritances to the distribution of wealth in
 unleash the power of ideas for positive change by identifying,                              the United States is surprisingly small.
 encouraging and aggressively marketing the best scholarly research.                         Senate Majority Leader Bill Frist (R-TN)
                                                                                             and Senator Jon Kyl (R-AZ) distributed a
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 Health Care Policy.                                                                         In his letter, Sen. Frist said, “I hope this
 The NCPA is probably best known for                    NCPA President                       report will offer you a fresh perspective on
 developing the concept of Health Savings         John C. Goodman is called                  the merits of this issue. Now is the time for
 Accounts (HSAs), previously known as               the “Father of HSAs” by                  us to do something about the death tax.”
                                                The Wall Street Journal, WebMD
 Medical Savings Accounts (MSAs).
                                                   and the National Journal.                 Retirement Reform.
 NCPA President John C. Goodman is                                                           With a grant from the NCPA, economists
 widely acknowledged (Wall Street                                                            at Texas A&M University developed a
 Journal, WebMD and the National                                                             model to evaluate the future of Social
 Journal) as the “Father of HSAs.” NCPA       Taxes & Economic Growth.
                                                                                             Security and Medicare, working under the
 research, public education and briefings     The NCPA helped shape the pro-growth           direction of Thomas R. Saving, who for
 for members of Congress and the White        approach to tax policy during the 1990s.       years was one of two private-sector
 House staff helped lead Congress to          A package of tax cuts designed by the          trustees of Social Security and Medicare.
 approve a pilot MSA program for small        NCPA and the U.S. Chamber of Com-                 The NCPA study, “Ten Steps to Baby
 businesses and the self-employed in 1996     merce in 1991 became the core of the           Boomer Retirement,” shows that as 77
 and to vote in 1997 to allow Medicare        Contract with America in 1994.                 million baby boomers begin to retire, the
 beneficiaries to have MSAs. In 2003, as      Three of the five proposals (capital gains     nation’s institutions are totally unprepared.
 part of Medicare reform, Congress and        tax cut, Roth IRA and eliminating the          Promises made under Social Security,
 the President made HSAs available to all     Social Security earnings penalty)              Medicare and Medicaid are inadequately
 nonseniors, potentially revolutionizing      became law. A fourth proposal —                funded. State and local institutions are not
 the entire health care industry. HSAs now    rolling back the tax on Social Security        doing better — millions of government
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 private health insurance and helped          Bush’s tax cut proposals.
 formulate bipartisan proposals in both the     NCPA research demonstrates the               Pension Reform.
 Senate and the House. The NCPA and           benefits of shifting the tax burden on         Pension reforms signed into law include
 BlueCross BlueShield of Texas devel-         work and productive investment to              ideas to improve 401(k)s developed and
 oped a plan to use money that federal,       consumption. An NCPA study by Boston           proposed by the NCPA and the Brookings
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 on indigent health care to help the poor     analyzed three versions of a consumption       401(k) reforms are automatic enrollment
 purchase health insurance. The SPN           tax: a flat tax, a value-added tax and a       of employees into companies’ 401(k)
 Medicaid Exchange, an initiative of the      national sales tax. Based on this work, Dr.    plans, automatic contribution rate
 NCPA for the State Policy Network, is        Goodman wrote a full-page editorial for        increases so that workers’ contributions
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 policymakers in every state.                 both progressive and fair.                     not make an investment choice.

                                                                                                                                             23
About the NCPA


 The NCPA’s online Social Security
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 Environment & Energy.                                                                               dollar than any think tank in the country.
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Solar Power Prospects

  • 1. N AT I O N A L C E N T E R F O R P O L I C Y A N A LY S I S Solar Power Prospects Policy Report No. 334 by H. Sterling Burnett May 2011 The production of electricity from renewable energy technologies is growing much faster than the electric power supply as a whole, and solar power is among the fastest growing segments of the renewable energy market. Public policy concerns and economics are driving this growth. Some analysts and politicians believe that increasing solar power use will enhance U.S. national security by reducing dependence on imported energy — primarily oil from the Organization of Petroleum Exporting Countries (OPEC) and Russia. Executive Summary The production of electricity from renewable energy technologies is growing much faster than the electric power supply as a whole. Solar power is among the fastest growing segments of the renewable energy market. Centralized solar power is produced on large farms and fed into an electrical grid — a network of wires and transformers that allows electricity produced by multiple sources to be transported to industrial, commercial and residential consumers. Globally, grid-connected solar capacity increased an average of 60 percent annually from 2004 to 2009, faster than any other energy source. Solar electricity production grew 15.5 percent in 2009 alone. Today, however, solar power still accounts for less than one-half of one percent of the world’s electric Dallas Headquarters: power output. 12770 Coit Road, Suite 800 Dallas, TX 75251 Despite its impressive growth, and even with significant subsidies, solar 972.386.6272 power is substantially more expensive than conventional power sources in Fax: 972.386.0924 most locations. This is true of solar thermal systems that use lenses or mirrors www.ncpa.org and tracking systems to focus sunlight into a small beam to heat a fluid that turns steam-powered turbines. It is also true of solar photovoltaic power, in Washington Office: which panels or modules of cells fabricated from semiconducting materials 601 Pennsylvania Avenue NW, generate electrical power by converting solar radiation into direct-current Suite 900, South Building Washington, DC 20004 electricity. This study focuses on solar photovoltaic (“solar”), the more mature, 202.220.3082 more widespread and historically easier to build form of solar generation. Fax: 202.220.3096 Analysts agree that if solar is to become a significant power source, it must compete with other energy sources — in markets without subsidies to ISBN #1-56808-212-6 any form of energy, barriers to the entry of new producers or discriminatory www.ncpa.org/pub/st334 price regulations. When the price at which customers in a particular area can purchase electricity generated by solar power is about the same as the aver- age price of electricity generated by conventional sources, it is said to have reached grid parity. U.S. Energy Subsidies Are Substantial. In the United States, federal energy subsidies have amounted to hundreds of billions of dollars. Refined coal receives more subsidies than any other single energy source. According to a 2008 Energy Information Administration (EIA) report:
  • 2. Solar Power Prospects ■■ Federal subsidies to all energy sources topped to determine the dollar value of the energy that could be $16.6 billion in 2007 alone, more than double the produced in a city, based on current average electric prices $8.2 billion spent in 1999. in that state. Other factors, such as the derate — the per- centage of a cell’s rated output capacity that it will actually ■■ Nonrenewable energy sources, including fossil produce — can also be input. The result is a measure of the fuels and nuclear power, received the majority of revenue potential of the installation. subsidies — slightly more than $6.7 billion. Using the PVWatts calculator, at what price might solar ■■ By comparison, renewable fuels including solar, become profitable? For example, take a 1,000 kilowatt hydroelectric, wind, biofuels and geothermal, system, with construction and installation financed at a 6.25 received $4.8 billion. percent interest rate. The cost of the project would depend In addition, some states have subsidies and mandates for on the price of solar panels. At an installed cost of $3.90 per renewable energy. Currently, subsidized solar energy costs watt, the project would cost $3.9 million. At $2.50 per watt, between $0.22 per kilowatt-hour and $0.30 per kilowatt- the project would cost $2.5 million. At $1.50 per watt, the hour, according to independent analyses. By contrast, project would cost $1.5 million. Using three different prices the average cost of electricity nationwide is expected to for the solar cell modules in a selection of 13 U.S. cities: remain roughly $0.11 per kilowatt-hour through 2015, ■■ At a cost of $3.90 per watt, only Hawaii generates according to an August 2010 White House report. enough income to cover its annual loan payments. Solar Power Has Reached Parity in Some Areas. ■■ At $2.50 per watt and the higher 0.825 derate The price point for grid parity varies by location, due to factor, San Diego also barely covers its note. such factors as the amount of sunlight an area receives, the orientation of the solar array, whether the solar arrays are By contrast, when solar panels reach $1.50 per watt, sev- fixed or track the sun, construction costs, rate structure and en of the cities examined generate enough income to cover financing options. As a result, according to the National their financing even at the lower derate factor; as the derate Renewable Energy Laboratory, breakeven costs vary by factor improves, eight cities can cover their loan payments. more than a factor of 10 in the United States. Thus: These scenarios are consistent with projections of future energy costs by the International Energy Agency (IEA) in ■■ Solar power has already reached grid parity in 2010. The IEA concluded that: Hawaii, where the average price for electricity was $0.25 per kilowatt-hour in 2010 — with ■■ Over the next decade, with continued government the average residential price topping $0.28 per support, solar power prices will decline sufficiently kilowatt-hour. to compete with conventional electric retail prices in a “few” countries by 2015 and “several” ■■ In some parts of the country, solar may approach countries by 2020. grid parity soon. ■■ The IEA projects that the cost of solar electricity in ■■ In other locations, such as Arizona, that have 2020 will range from $0.13 to $0.26 per kilowatt- abundant sunlight but limited transmission access hour for commercially produced solar power and low electricity prices, solar is not competitive. and $0.16 to $0.31 for electricity produced by Solar Power Must Be Profitable in Order to Com- residential systems. pete. Most analysts agree that solar will reach grid parity in ■■ If the IEA’s estimates are correct, the price of a wide range of locations if the price for solar panels falls solar power will still be higher than the cost of toward $1 per watt. Indeed, at $1.50 per watt, solar might conventionally produced electricity in 2020. be competitive with conventional generation sources in With major technological breakthroughs that signifi- locations with a combination of high average electric costs cantly reduce the cost of solar power production and the and/or good average sunlight — producing power at $0.10 imposition of new environmental mandates that raise the to $0.15 per kilowatt-hour. price of electricity generated by other sources, solar could An online calculator called PVWatts, developed by reach grid parity in some areas of the United States by the the National Renewable Energy Laboratory, can be used end of the decade. 2
  • 3. Introduction efficiency, reducing the cost of solar study, the price of electricity from panels considerably. newly constructed solar facilities The production of electricity will be compared with prices from from renewable energy technologies However, in most locations other new generating sources. is growing much faster than the solar is still substantially more electric power supply as a whole, expensive than conventional power This study will also consider: and solar power is among the sources. Analysts agree that if solar What would be necessary for solar fastest growing segments of the is to become a significant power power to compete as a significant renewable energy market. Public source, it must compete with other energy source with other new policy concerns and economics energy sources — in markets sources of electric power? When is are driving this growth. Some without subsidies to any form of widespread parity likely? When will analysts and politicians believe energy, barriers to the entry of new the annualized cost of solar power that increasing solar power use will producers or discriminatory price be competitive with other sources enhance U.S. national security by regulations. When the price at of electric power over the life of the reducing dependence on imported which customers in a particular area generation facility? energy — primarily oil from can purchase electricity generated by solar power is about the same In Hawaii, for example, due to the Organization of Petroleum favorable climatic conditions and Exporting Countries (OPEC) and as the average price of electricity generated by conventional sources, high energy costs, solar power, Russia. Environmentalists argue with present subsidies, is already that solar power will improve air it is said to have reached grid parity. cost competitive with electricity quality by reducing the use of from other sources. In other areas fossil fuels — primarily coal — for with a combination of consistently electric power production. They sunny days and high energy costs, claim this would reduce emissions “Solar power has grown solar power could become cost of a variety of air pollutants, competitive as additional power to including greenhouse gases. rapidly, but still accounts the grid by, say, late in this decade. Insert callout here. for less than one-half of However, analysis of the available These concerns have led to 1 percent of U.S. evidence indicates that unless favorable tax treatment, price electricity output.” the substantial subsidies recently supports and direct subsidies for available in the United States and in renewable energy by both federal Europe are continued, widespread and state governments. Some grid parity for solar power is a states have implemented mandates decade or more away. — called renewable portfolio It is important to compare the standards — for production and/or projected cost of solar power Note that regulations that affect use of electricity from renewables. from new installations with power the costs and viability of energy Tens of billions of dollars in public generated from new conventional production are in constant flux. spending and renewable energy power plants rather than existing Some environmental regulations mandates have encouraged private conventional plants. Power — such as increasingly stringent investment in solar power. Indeed, generators already in operation air pollution limits, for example in the United States, solar electricity represent sunk costs, and the — will raise the costs of fossil production grew 55 percent from capital costs to build those plants fuels, especially in comparison to 2004 to 2008, and 15.5 percent in have been partially or completely solar and other energy sources. 2009 alone.1 Today, however, solar amortized. Since new solar power Other regulations might never be power still accounts for less than plants will compete with other implemented. Thus, in this study, one-half of one percent of U.S. renewable energy sources, new it is assumed that current laws and electric power output. Public and fossil fuel plants and new nuclear standards will continue. It is on private investment has encouraged facilities, the costs of new power that basis that the future price of innovation and increased production plants should be compared. In this electricity generated by fossil fuel 3
  • 4. Solar Power Prospects and nuclear powered plants will be ■■ Between 2004 and 2009, Solar photovoltaic is a more mature compared with solar power. grid-connected solar capacity technology, easier to build and increased an average of 60 in much wider use. Most recent Solar Power Output, percent annually, to some 21 solar power installations are gigawatts (21 billion watts — solar photovoltaic. Thus, unless Technology and or units of electric power).3 otherwise noted, in this study Efficiency ■■ As of 2010, solar power “solar” refers to solar photovoltaic. Earth receives more energy generated electricity in more Solar Cell Technology. There than 100 countries. are two main types of solar from the sun in one hour than the amount of energy the world uses This paper focuses on centralized photovoltaic technologies: silicon in one year. The amount of solar solar power production. Off-grid wafer and thin film. Silicon wafer energy reaching the surface of the photovoltaic, such as rooftop panels technology is the one used in most planet in one year is about twice that generate power for on-site solar power plants. Indeed, silicon as much as will ever be obtained consumption, accounts for an wafer makes up 82 percent of the from all of Earth’s nonrenewable additional 3 to 4 gigawatts. installed solar market.6 Thin film is resources of coal, oil, natural gas less expensive, and accounts for a and mined uranium combined.2 growing share of the market. Sales Even under the best circumstances, of thin film are growing 50 percent only a small part of this energy per year, while silicon wafer solar would be available for solar power is growing approximately 30 use, because much of it is naturally “Earth receives more percent per year. This paper focuses consumed by plant photosynthesis. energy from the sun in one on common silicon wafer panels But this small amount could, Insert callout here. hour than the amount the or modules, rather than thin film in theory, be transformed into a world uses in one year.” technologies, because silicon wafers significant amount of electricity. convert sunlight to electricity more efficiently and therefore will likely Solar Power Output. Solar continue to dominate the market: power includes both centralized and decentralized solar power sources ■■ Silicon wafer technologies and different technologies for Thermal versus Photovoltaic convert 13 percent to 20 generating power (which includes Solar. Two main types of solar percent of the sunlight hitting electricity and heat). Centralized power are used to produce them into electricity whereas solar power is produced on large electricity. Thermal solar power thin film technologies often farms and fed into an electrical systems generally use lenses or convert just 4 percent.7 grid — a network of wires and mirrors and tracking systems to transformers that allows electricity ■■ Under artificial laboratory focus a large area of sunlight into conditions, research scientists produced by multiple sources a small beam to heat a fluid that to be transported to industrial, have produced 41 percent turns steam-powered turbines.4 The conditions from certain types commercial and residential most familiar solar technology, consumers. Globally, solar-powered of layered solar cells, but such however, is solar photovoltaic advances will not be available electricity production has grown in technology used to produce recent years: commercially for years. electricity in calculators, yard ■■ Solar power is a tiny frac- lights and rooftop panels. Solar ■■ Absent a significant tion of the 4,800 gigawatt panels consist of a number of cells technological breakthrough, total global electricity fabricated from semiconducting the inherent physical char- generating capacity, but it materials that generate electrical acteristics of crystal silicon is the fastest growing power by converting solar radiation mean that energy conversion technology in the world. into direct-current electricity.5 will top out at 30 percent.8 4
  • 5. Solar cells last 20 to 25 years; price ceilings on oil and Refined coal receives more however, even if solar panels are gas consumed in countries subsidies than any other single cleaned periodically to maintain like Bolivia, Venezuela and energy source — mostly tax credits peak efficiency, output declines by Iran — according to the for research and development of approximately 0.5 percent per year. Global Subsidies Initiative, so-called clean coal, carbon-capture Thus, after 20 years they will only a collaborative effort of the and storage technologies, and produce 80 percent of their rated environmentalist Institute for synthetic fuels from coal to improve capacity. Less efficient cells may Sustainable Development and air quality, lower carbon emissions cost less per module, but are not the Earth Council.10 or reduce energy dependence. necessarily less expensive to use Renewable energy is the second ■■ Subsidies in developed because more have to be installed to most subsidized energy type, and countries have shifted from get the same amount of energy. receives more subsidies than all fossil fuels and nuclear power the other (noncoal) fossil fuels and toward renewable energy nuclear power combined. Energy Subsidies sources in recent years — U.S. subsidies to renewables, for The installed base of solar and Fossil fuels, nuclear and example, grew from 17 percent other renewables is small compared renewable energy sources — of total energy subsidies in to fossil fuels. As a result, measured including solar power — are 1999 to 29 percent in 2007.11 by the energy delivered per dollar subsidized worldwide. Government of subsidy, solar is among the most subsidies tend to encourage ■■ More recently, from 2008 to highly subsidized power sources. increased investment in production 2009, renewable energy sub- According to the EIA: and/or reduce the cost of a sidies increased from approxi- good or service to consumers. mately $46 billion worldwide ■■ Natural gas and petroleum The cost of subsidies are less to more than $57 billion.12 subsidies amount to $0.25 per visible than the lower prices megawatt-hour of electricity U.S. Energy Subsidies. In paid by consumers. They include produced. the United States, federal energy costs to taxpayers and market subsidies have amounted to hun- ■■ Coal subsidies amount to distortions, which tend to protect dreds of billions of dollars. Accord- $0.44 per megawatt-hour. less efficient technologies and ing to a 2008 Energy Information ■■ Biomass (including biofuels) reduce or undermine innovation. Administration (EIA) report:13 subsidies amount to $0.89 per Global Energy Subsidies. ■■ Federal subsidies to all energy megawatt-hour.15 Globally, fossil fuels are the most sources topped $16.6 billion in heavily subsidized energy source: 2007 alone, more than double the $8.2 billion spent in 1999. ■■ Developing countries annually ■■ Nonrenewable energy sources, spend $220 billion on subsi- including fossil fuels and “Refined coal receives dies for all forms of energy, of nuclear power, received the more federal subsidies which more than $170 billion is spent on fossil fuel subsi- majority of subsidies — Insertany other single than callout here. dies, according to International slightly more than $6.7 billion. energy source.” Energy Administration ■■ By comparison, renewable fu- (IEA) estimates.9 els including solar, hydroelec- ■■ Worldwide energy subsidies tric, wind, biofuels and geo- topped $490 billion in thermal, received $4.8 billion. By contrast: 2007 — of which more than Most federal energy subsidies $400 billion were fossil ($10.4 billion) are tax expenditures ■■ Nuclear power subsidies fuel subsidies in developing (tax credits and other preferences) amount to $1.59 per megawatt- countries and mostly through rather than direct expenditures.14 hour of electricity produced. 5
  • 6. Solar Power Prospects ■■ Wind subsidies amount to was in states with mandatory Long-Distance Transmission $23.37 per megawatt-hour. renewable portfolio standards. Lines. Locations for centralized ■■ Since 2002, 60 percent of photovoltaic solar farms are ■■ Solar subsidies amount to somewhat limited. They require $24.34 per megawatt-hour.16 the renewable additions have been in states with much more land than conventional State Subsidies and Indirect mandatory standards. electric power plants to produce Subsidies. A majority of states the same amount of electricity. The ■■ In 2007 alone, approximately land must be relatively inexpensive and many localities subsidize 76 percent of all nonhydro various forms of renewable energy since it is an additional cost. In renewable capacity addition, solar farms must be in production. These subsidies additions were in states include state grants, tax incentives, sunny areas, and they receive more with these programs.18 energy closer to the tropic zones. electricity purchase provisions, and rebates or property tax deductions In order to diversify supplies, Though solar panels generate for home photovoltaic installations. states are increasingly encouraging some power on overcast days, too or requiring utilities to meet a much rain or too many cloudy State Renewable Portfolio portion of their portfolio standard days reduce the amount of power Standards. State renewable through renewable technologies generated below the level needed portfolio standards have proliferated or applications that are often to cover costs and increases the since the 1990s and, along with more costly. This support includes variability of the power supplied.19 federal subsidies, have become the credit multipliers, which give Thus, solar farms are usually key driver of U.S. renewable energy favored renewables more credit located hundreds or even thousands growth. By 2008, 25 states and the toward the requirements than of miles from the cities and suburbs District of Columbia had mandatory other technologies, and specific where the power is consumed. renewable power standards for set-asides, in which some fraction electricity providers, and four more The cost of high-voltage of the portfolio must be met with power lines to carry power long states had nonbinding goals.17 The favored technologies. standards vary, but generally require distances tops $1.5 million per retail electric suppliers to provide mile, assuming flat, rural terrain.20 a minimum quantity or percentage Obtaining permits and rights of way of electric power from renewable increases the cost. In addition, if resources. In many states, the terrain is hilly, mountainous or “State portfolio standards forested, the cost can rise to 1.2 to requirements increase over time. and federal subsidies are 1.5 times the average cost.21 Power Renewable portfolio standards Insert callout here. key drivers of renewable lines have to be built at least to are, in one sense, more powerful energy growth.” the nearest main transmission line, than subsidies. Subsidies only which may have to be upgraded encourage utilities, firms and to handle the additional flow and individuals to adopt, develop or to regulate the variability of solar use renewable power, but portfolio power. For example, thousands of standards require electric suppliers miles of new power line would have to purchase (and thus consumers to Both centrally generated and to be constructed at a cost of tens of pay for) renewable, regardless of distributed (residential) solar billions of dollars to deliver power the cost. This strategy appears to be generation have especially benefited from Midwest solar farms to East working: from such set-asides. Indeed, 12 and West coast cities. of the 26 U.S. renewable portfolio ■■ Over 50 percent of the standard programs have set-asides Renewables benefit from nonhydro renewable capacity for solar power, and four of these subsidies for the construction added in the United States states combine set-asides with some of new transmission lines from 1998 through 2007 form of credit multipliers. and associated infrastructure. 6
  • 7. Traditionally, public or private extended losses of power. Passing have been made in the past. [See utilities built the transmission clouds only affect a few panels or the sidebar, “Solar Power: Promises lines serving a particular area and small portions of the full array at a and Subsidies.”] When are these passed on the cost to customers. time. Even on days with little wind, more recent predictions likely to However, at the behest of the if clouds are sporadic, large solar come true? renewable power industry and arrays produce near rated capacity.24 Currently, subsidized solar with the support of the Obama energy costs between $0.22 administration, the Federal Energy per kilowatt-hour and $0.30 Regulatory Commission (FERC) per kilowatt-hour, according to has drafted a rule that could “The Obama independent analyses.33 Projections basically nationalize transmission administration predicts of future energy costs by the infrastructure development costs by requiring either taxpayers Insert callout solar electricity from here. International Energy Agency (IEA) in 2010 indicate that: or electric power consumers to power will be price pay for new transmission lines competitive by 2015.” ■■ Over the next decade, with to bring remote wind and solar continued government power to the national grid.22 support, solar power prices Governors throughout the will decline sufficiently to compete with conventional country object to the plan. A When Will Solar electric retail prices in a “few” joint letter from the governors of Arizona, Nevada, Washington, Power Reach countries by 2015 and Oregon and California says that it “several” countries by 2020. Grid Parity? would be “inappropriate to assess ■■ The IEA projects that the the cost of transmission build-out A common theme in many of cost of solar electricity in to customers that cannot make use President Obama’s speeches is 2020 will range from $0.13 of the facilities, or who elect not to that government subsidies will to $0.26 per kilowatt-hour for because they can access more cost make a variety of “clean” energy commercially produced solar effective options that do not rely on technologies cost competitive. An power and $0.16 to $0.31 large, new transmission investments August 2010 White House report for electricity produced by to meet environmental goals.”23 singled out solar power produced residential systems. by rooftop residential installations. Stabilizing Power. Renewables ■■ If the IEA’s estimates are cor- also benefit from the availability of In 2009, electricity produced by rect, the price of solar power on-demand stabilizing and fill-in such systems cost the equivalent of will still be higher than the cost power from other sources. Fossil more than $0.21 per kilowatt-hour of conventionally produced fuel or nuclear-powered generating (including installation but not electricity, and thus solar will plants run as spinning reserve at less maintenance costs), whereas the not reach grid parity in much than peak efficiency in order to be average retail price of electricity of the United States by 2020. brought on-line if the variable flow nationwide was $0.11 per kilowatt- from a solar farm falls precipitously hour.25 However, the report predicts However, the price point for over a short period of time. Some the average cost of residential solar grid parity varies by location, portion of these plants’ cost should will fall to $0.10 per kilowatt-hour due to such factors as the amount be counted against the solar facility by 2015, while the average cost of of sunlight an area receives, the since they make it possible. electricity nationwide will remain orientation of the solar array, roughly $0.11 per kilowatt-hour. whether the solar arrays are fixed However, at locations where solar This would be grid parity. Other or track the sun, construction is ideal or nearly ideal, the larger administration studies make similar costs, rate structure and financing the array, the less problem there is claims for commercially produced options. As a result, according to with power spikes or significant, solar power. Similar predictions the National Renewable Energy 7
  • 8. Solar Power Prospects Laboratory, breakeven costs vary by more than a factor of 10 in the Solar Power: Promises and Subsidies United States.34 Thus: Harnessing sunlight for heating and other power purposes is not new. Solar collection devices were developed in the 17th century to protect ■■ Solar power has already plants brought from the tropics to northern countries, and both the first reached grid parity in solar water heater and the first solar oven were developed the 18th Hawaii, where the average century. Indeed, the solar power revolution has been on the verge of price for electricity was taking off for centuries.26 $0.25 per kilowatt-hour in In response to the Arab Oil Embargo, in part, the relatively new 2010 — with the average U.S. Department of Energy (along with other agencies) began a residential price topping slew of programs to fund solar energy research, deployment and $0.28 per kilowatt-hour. commercialization. Based strictly on performance, these programs ■■ In some parts of the have failed at the cost of billions of dollars of taxpayers’ money. country, solar may approach No one has ever lost money betting against the predictions that grid parity soon. widespread, cost-competitive solar power was just “a few years” away.27 The hyping of solar power’s near-term potential as a source of In other locations, such as electricity increased exponentially with the advent of large government Arizona, that have abundant grants and subsidies for solar power research in the 1970s. In 1976, sunlight but limited transmission for example, noted environmental author Barry Commoner stated access and low electricity prices, that mixed solar/conventional installations could become the most solar is not competitive.35 economical alternative in most parts of the United States within the next few years.28 In 1987 the head of the Solar Energy Industries What Is the Association stated: “I think frankly, the…consensus as far as I can see is after the year 2000, somewhere between 10 and 20 percent of our Breakeven Cost of energy could come from solar technologies, quite easily.”29 Solar Power? Why haven’t these and other similar predictions come true? The answer of many advocates has been simple: inadequate government In order to determine whether a support. solar power plant is competitive in a particular area, one must determine A 1983 study by the Booz Allen Hamilton consulting firm for the if the electricity it produces can Solar Energy Industries Association, the American Wind Energy be sold at a profit, given average Association and the Renewable Energy Institute found that solar and electric power prices in the region, wind technologies would become competitive and self-supporting by the end of the 1980s, if “assisted by tax credits and augmented by the amount of power the plant could federally sponsored R&D [research and development].”30 Just three produce and capital costs (including years later, long-time green energy booster Amory Lovins, of the interest) of construction. Rocky Mountain Institute, decried what became a temporary scaling The Photovoltaic Watts back of tax breaks for renewable energy, since the competitive viability Calculator. An online calculator of wind and solar technologies was “one to three years away.”31 And called PVWatts, developed by in 1990, with sufficient government support, the Worldwatch Institute the National Renewable Energy predicted an almost complete displacement of fossil fuels for the Laboratory, allows nonexperts electric power generation market by approximately 2010.32 to quickly obtain performance It seems hardly fair, however, to claim that solar power has failed estimates for grid-connected to reach widespread commercialization in the marketplace due to lack photovoltaic systems. The PVWatts of subsidies since, by some measures, solar power is one of the most calculator shows the dollar value of highly subsidized power sources on Earth. the energy that could be produced in a city, based on current average electric prices in that state. This is a 8
  • 9. TABLE I Hypothetical Solar Power Plant Revenue for Select Cities Average State Price City per Kilowatt Hour At 0.77 Derate* At 0.825 Derate* El Paso, Texas 9.36 ¢ $155,097 $166,285 Austin, Texas 9.36 ¢ $127,528 $136,849 Bridgeport, Conn. 17.42 ¢ $208,172 $223,533 Columbus, Ohio 9.13 ¢ $102,665 $110,254 San Diego, Calif. 13.97 ¢ $209,339 $224,528 Miami, Fla. 10.61 ¢ $142,098 $152,549 Nashville, Tenn. 8.66 ¢ $110,636 $118,763 Phoenix, Ariz. 9.78 ¢ $158,138 $169,522 Anchorage, Alaska 14.86 ¢ $117,998 $126,953 Honolulu, Hawaii 25.03 ¢ $365,423 $392,157 New York, N.Y. 16.37 ¢ $199,459 $214,172 Charleston, W. Va. 7.42 ¢ $ 83,975 $ 90,185 Rapid City, S.D. 7.78 ¢ $109,547 $117,543 * The percentage of rated capacity a solar power plant is expected to produce. Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and author’s calculations. measure of the revenue potential of conditions. The average cost of the old PVWatts factor. This derate the installation. electricity for each state is the also accounts for the fact that some most recent estimate from the U.S. solar farm developers might use The calculator automatically Department of Energy. higher rated (but more expensive) adjusts for a number of variables, equipment, while others use less It is necessary to consider two including the type of solar power expensive, less efficient solar system (fixed axis versus tracking), scenarios to account for the fact arrays. As Table I shows, the dollar the average amount of sunlight in that a solar cell will deliver less value of the electricity produced by a particular area and the angle of power than its rated capacity, solar power varies dramatically by the sun. Note, however, that the due to such factors as dust and region and, more importantly, by PVWatts calculations do not include dirt, shade and power losses in the average price of electric power the operating and maintenance the wiring. This “derate factor” in a state: costs of the systems (see additional is a percentage of the cell’s rated capacity. The first scenario uses ■■ Due to high energy prices and considerations below). PVWatts’ default derate factor of favorable climatic conditions, Solar Competition under 0.77. The PVWatts derate factor is a 1,000 kilowatt solar array Two Scenarios. Following are still commonly used, but it has not in Hawaii delivers the highest two exercises using the PVWatts been updated since 2007. Some dollar value of electricity in a calculator, for a 1,000 kilowatt (1 solar cell manufacturers now claim year, ranging from $365,423 to megawatt) system using a fixed a 0.90 derate factor. The second $392,157. array at various locations, with a scenario adjusts the PVWatts derate ■■ Low electric power prices wide range of energy costs, and to 0.825, splitting the difference and less available sunlight different geographic and climatic between manufacturers’ claims and on average means that a 9
  • 10. Solar Power Prospects TABLE II Annual Revenue Net of Capital Costs for a Solar Power Plant in Various Cities (Installed Capital Cost of $3.90 per Watt) City Annual Financing Cost* 0.77 Derate 0.825 Derate El Paso, Texas $348,928.20 -$193,831.20 -$182,643.20 Austin, Texas $348,928.20 -$221,400.20 -$212,079.20 Bridgeport, Conn. $348,928.20 -$140,756.20 -$125,395.20 Columbus, Ohio $348,928.20 -$246,263.20 -$238,674.20 San Diego, Calif. $348,928.20 -$139,589.20 -$124,400.20 Miami, Fla. $348,928.20 -$206,830.20 -$196,379.20 Nashville, Tenn. $348,928.20 -$238,292.20 -$230,165.20 Phoenix, Ariz. $348,928.20 -$190,790.20 -$179,406.20 Anchorage, Alaska $348,928.20 -$230,930.20 -$221,975.20 Honolulu, Hawaii $348,928.20 $ 16,494.80 $ 43,228.80 New York, N.Y. $348,928.20 -$149,469.20 -$134,756.20 Charleston, W. Va. $348,928.20 -$264,953.20 -$258,743.20 Rapid City, S.D. $348,928.20 -$239,381.20 -$231,385.20 *Note: $3,900,000 loan at 6.5 percent interest. Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and author’s calculations. 1,000 kilowatt array in West The 2008 decline in incentives shift in production of solar panels to Virginia generates less was reversed, and their value rose China caused the cost per kilowatt- than $100,000 a year. in 2009 and 2010. hour for solar cells to fall:38 Installed Cost per Watt. The The lower the price for ■■ In 2009, the average installed cost of new solar power plants fell solar materials, assembly and cost of solar cells fell to $3.90 and rose in recent years along with construction, the greater the net per watt and in some cases incentives, subsidies, mandates and revenue at any electric power price nearly fell to $2.33 per watt. other policies that encourage solar point. Solar panels can make up power use: nearly half the cost of solar systems. ■■ The cost of solar photovoltaic- ■■ For commercial solar, the Over the past 15 years, the cost generated electricity in sunny installed cost of solar with of solar photovoltaic systems fell locations would have been incentives fell from $5.50 per an average of 4 percent per year, approximately $0.22 to $0.25 watt to $3.60 per watt in 2006. whereas the price of electric power per kilowatt-hour in 2009, has generally risen. In 2009 alone, absent subsidies and incentives ■■ By 2008 the installed cost prices for solar panels dropped — well above the average rose to $4.80 per watt as cash approximately 40 percent, notes residential price of electric incentives and government Navigant Consulting.37 The most power in most locations. subsidies declined.36 recent steep decline is due largely to ■■ Net of incentives, installed the tremendous growth in China’s However, in 2009, as wages in costs ranged from $7.30 per solar panel production, which China rose, and higher priced panel watt to $9.90 per watt in 2008. resulted in a glut in the market. This makers in the United States and 10
  • 11. TABLE III Annual Revenue Net of Capital Costs for a Solar Power Plant in Various Cities (Installed Capital Cost of $2.50 per Watt) City Annual Financing Cost* 0.77 Derate 0.825 Derate El Paso, Texas $223,671.96 -$ 68,574.96 -$ 57,386.96 Austin, Texas $223,671.96 -$ 96,143.96 -$ 86,822.96 Bridgeport, Conn. $223,671.96 -$ 15,499.96 -$ 138.96 Columbus, Ohio $223,671.96 -$121,006.96 -$113,417.96 San Diego, Calif. $223,671.96 -$ 14,332.96 $ 856.04 Miami, Fla. $223,671.96 -$ 81,573.96 -$ 71,122.96 Nashville, Tenn. $223,671.96 -$113,035.96 -$104,908.96 Phoenix, Ariz. $223,671.96 -$ 65,533.96 -$ 54,149.96 Anchorage, Alaska $223,671.96 -$105,673.96 -$ 96,718.96 Honolulu, Hawaii $223,671.96 $141,751.04 $168,485.04 New York, N.Y. $223,671.96 -$ 24,212.96 -$ 9,499.96 Charleston, W. Va. $223,671.96 -$139,696.96 -$133,486.96 Rapid City, S.D. $223,671.96 -$114,124.96 -$106,128.96 *Note: $2,500,000 loan at 6.5 percent interest. Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and author’s calculations. abroad closed, the flood of low-cost developer obtains financing that able? Take a 1,000 kilowatt system, panels ebbed. Thus, prices are carries an interest rate higher or with construction and installation likely to rise. lower than the 6.25 percent rate financed at a 6.25 percent interest used below, the price per watt rate using three different prices Most analysts agree that solar at which solar power becomes for installed solar cell modules: will reach grid parity in a wide profitable also changes. As the 2009 estimated average price range of locations if the price discussed below, the cost of of $3.90 per watt, $2.50 per watt for panels falls toward $1 per borrowing to finance large solar and $1.50 per watt. The results are watt. Indeed, at $1.50 per watt, farms can be considerably higher shown in Tables II, III and IV. solar might be competitive with than for other electric power conventional generation sources ■■ At a cost of $3.90 per watt, developments. In addition, there in locations with high average only Hawaii generates enough is the uncertainty of continuing income to cover its annual loan electric costs and/or good average subsidies in the current fiscal sunlight — producing power at payments. [Table II.] situation. Indeed, some utilities $0.10 to $0.15 per kilowatt-hour.39 are cancelling their contracts ■■ At $2.50 per watt and the This is in the range of Obama with solar developers.41 higher 0.825 derate factor, San administration estimates.40 Diego also barely covers its Profitability under Differ- note. [Table III.] Assumed Interest Rate on ent Installed Cost and Derate Financing. The profit point is Assumptions. In the same cities ■■ By contrast, when solar panels significantly affected by changes examined using PVWatts, at what reach $1.50 per watt, seven of in interest rates. If a solar farm price might solar become profit- the cities examined generate 11
  • 12. Solar Power Prospects TABLE IV Annual Revenue Net of Capital Costs for a Solar Power Plant in Various Cities (Installed Capital Cost of $1.50 per Watt) City Annual Financing Cost* 0.77 Derate 0.825 Derate El Paso, Texas $134,203.20 $ 20,893.80 $ 32,081.80 Austin, Texas $134,203.20 -$ 6,675.20 $ 2,645.80 Bridgeport, Conn. $134,203.20 $ 73,968.80 $ 89,329.80 Columbus, Ohio $134,203.20 -$ 31,538.20 -$ 23,949.20 San Diego, Calif. $134,203.20 $ 75,135.80 $ 90,324.80 Miami, Fla. $134,203.20 $ 7,894.80 $ 18,345.80 Nashville, Tenn. $134,203.20 -$ 23,567.20 -$ 15,440.20 Phoenix, Ariz. $134,203.20 $ 23,934.80 $ 35,318.80 Anchorage, Alaska $134,203.20 -$ 16,205.20 -$ 7,250.20 Honolulu, Hawaii $134,203.20 $231,219.80 $257,953.80 New York, N.Y. $134,203.20 $ 65,255.80 $ 79,968.80 Charleston, W. Va. $134,203.20 -$ 50,228.20 -$ 44,018.20 Rapid City, S.D. $134,203.20 -$ 24,656.20 -$ 16,660.20 *Note: $1,500,000 loan at 6.5 percent interest. Source: National Renewable Energy Laboratory, “PVWatts Calculator,” available at http://www.nrel.gov/rredc/pvwatts/, and author’s calculations. enough income to cover their its capital costs at more locations lower operating costs than solar financing even at the lower and deliver greater income. — until the cost of fuel is factored derate factor; as the derate in. Still, though low, operations factor improves, eight cities Additional Considerations. and maintenance do add to the cost can cover their loan payments. There are a number of caveats to and could push solar into the red [Table IV.] consider regarding the estimates in those locations where profits above. at $1.50 per megawatt-hour are Only in Hawaii, however, do extremely modest. the solar arrays deliver more than PVWatts calculations do not $100,000 in value above their include operation and maintenance The profit point is also annual loan payment. costs of the systems. One of the significantly affected by even selling points of fixed solar systems modest changes in the interest The preceding examples used the (as opposed to tracking arrays) is rate obtained by the solar farm 2010 average price of electricity that, at $4.17 per megawatt-hour, developer. If it is higher or lower for the state of each city examined. its operating costs are lower than than the one chosen for testing, Electric power prices fell in most any competing energy source.42 then the price per watt at which of those locations from 2009 to For instance, a solar farm, unlike a minimum profit is obtained 2010. But in almost all instances, nuclear power plant or a coal-fired changes. [See the sidebar, prices have risen over the past power plant, does not require up to “Financing Electric Power Plants.”] decade. If average electric power hundreds of highly paid engineers prices rise, solar power could for its daily operations. Combined Note that the calculations above generate enough income to cover cycle natural gas plants have even do not include the substantial 12
  • 13. cost involved in permitting, environmental assessments and land purchases or leases. They also do Financing Electric Power Plants not include the cost of transmission Financing costs are important to the viability of solar photovoltaic lines or the rights of way, the power plants. These cost vary considerably, depending on which type share of the costs that should be of entity develops the plant. apportioned to a particular solar development for redundant power Publicly-Owned Utilities. Publicly-owned utilities include or spinning reserves, or the costs nonprofit electric cooperatives, and utilities owned by municipalities, involved with fighting potential states and the federal government. They have guaranteed service lawsuits aimed at halting the territories and face limited competition, but unlike investor-owned construction of the solar farm. utilities set their own rates and make their own decisions to build Land conversion is especially an power plants. A public utility usually finances a project with 100 issue where the use of public land percent debt because it can obtain an interest rate below those charged is proposed for a solar farm.44 [See to publicly traded corporations due to the very low risk of defaulting Appendix A, “Environmental and on debt payments, and because the interest it pays is exempt from National Security Considerations.”] federal or state income taxes. Investor-Owned Utilities. State utility commissions set electric Some of these costs would rates and conditions of service of investor-owned utilities. Investor- exist for almost any proposed owned utilities have guaranteed service territories and face limited new power plant. For instance, competition. Investor-owned utilities must obtain the approval of both nuclear and coal-fired power state utility commissions to build new power plants. Privately-owned plants have substantial permitting power plants are financed with a mix of debt and equity. The cost of and environmental assessment borrowing is higher because their debt is not tax exempt and they costs, and each proposed plant has usually have lower credit ratings. The debt of the average electric recently faced substantial legal utility is in the lower tier of investment grade (BBB) bonds. challenges. In the case of nuclear power, some states have banned the Independent Power Producers. Most solar energy projects are construction of new facilities. developed by independent power producers, who sell wholesale power to utility and industrial buyers. They make their own decisions to build power plants and, within limits, can sell power at whatever price the Comparisons of market will bear. They do not have guaranteed service territories and can face intense competition for power sales. They face more financial Current and Projected risk than regulated utilities — but can also earn larger profits. Costs of Solar and However, the debt of independent power producers often falls in Other Power Plants the speculative category and carriers a higher interest rate. As a result, even with federal grants covering 30 percent of the construction costs, The Obama administration and it is difficult for solar companies whose projects have been approved the most optimistic of solar power to find additional financing.43 proponents argue that solar power will reach widespread grid parity in 2013 to 2015. However, recent and Other Generating Plants. cycle natural gas power plant studies projecting solar power costs A 2008 Congressional Research being brought on-line in 2015.45 compared to other types of genera- Service (CRS) report compared tion indicate that widespread grid the current dollar cost of building, The study examined the demand parity is much further in the future. operating and maintaining a for and costs of new power plants A 2008 Projection of the variety of electric power facilities under a variety of conditions, Cost of Solar Power Systems to the cost of a new combined including higher and lower natural 13
  • 14. Solar Power Prospects TABLE V Capital Cost per Kilowatt Advanced IGCC Natural Solar Coal* Coal* Gas Nuclear Wind Photovoltaic National Base Project Cost $2,844 $3,221 $ 978 $5,335 $2,438 $4,755 Anchorage, Alaska $3,890 $4,252 $1,306 $6,208 $3,055 $5,702 Phoenix, Ariz. $2,689 $3,074 $1,005 $5,214 $2,382 $4,461 Los Angeles, Calif. $3,488 $3,858 $1,264 $5,845 $2,744 $5,213 Hartford, Conn. $3,688 $4,057 $1,254 $6,124 $2,602 $5,094 Tampa, Fla. $2,696 $3,078 $ 922 $5,226 $2,387 $4,539 Honolulu, Hawaii $ 0 $ 0 $1,472 $ 0 $3,108 $6,526 New York, N.Y. $3,842 $4,170 $1,650 $6,058 $3,040 $6,494 Cincinnati, Ohio $2,863 $3,246 $ 963 $5,385 $2,393 $4,535 Rapid City, S.D. $2,519 $2,912 $ 902 $5,103 $2,457 $4,363 Knoxville, Tenn. $2,574 $2,965 $ 896 $5,140 $2,329 $4,272 Houston, Texas $2,555 $2,946 $ 893 $5,130 $2,322 $4,274 Charleston, W. Va. $2,791 $3,172 $ 981 $5,298 $2,437 $4,652 * Note: Advanced Pulverized Coal (APC) project cost was estimated, since there were no operating APC plants. IGCC is Integrated Gasification Combined Cycle (IGCC) Coal. Source: U.S. Energy Information Administration, “Updated Capital Cost Estimates for Electricity Generation Plants,” November 2010. Available at http://tonto.eia.doe.gov/oiaf/beck_plantcosts/index.html. gas prices, requirements for carbon hour ($255.41) for solar prices, lower financing costs, lower capture, increases or decreases in photovoltaic was two-and-a capital costs and carbon capture and capital costs relative to a combined half times more than its nearest storage requirements), solar power cycle gas power plant (used as competing technology (solar plants had significantly higher a “base case” for comparison), thermal). annualized costs than competing and changes in financing terms electricity sources. relative to natural gas prices. The ■■ It was four times more expensive than a pulverized Natural gas power plants are results of the CRS comparison are inexpensive to build relative to expressed as annualized costs: the coal plant, and more than two-and-a-half times more other major sources for electricity present value of the total cost of but the variability of natural gas building, operating and maintaining expensive than either an integrated combined cycle coal prices can make the plants a very an electricity generating facility expensive power source. However, over its financial life converted to plant, a nuclear power plant or a land-based wind power plant. the price of natural gas would have equal annual payments, amortized to rise to and remain at 635 percent over the expected annual power ■■ It was more than four times as of its 2008 level in order for solar generation from an expected duty expensive as a combined cycle to match the price of electricity cycle. Among the results: gas plant. produced by a natural gas plant. ■■ In the base case, the total Even under conditions most The only change the CRS annualized cost per megawatt- favorable to solar (higher gas examined that raised the cost of 14
  • 15. the other electric power sources including labor costs and inflation. Solar’s annualized cost is within less than half of the Since many of the EIA’s locations significantly higher than almost annualized cost of a solar plant were not an exact match to the every other generating technology, were carbon controls. Assuming cities simulated in the PVWatts due primarily to three factors: a the government set a requirement calculations above, the in-state low capacity factor (the relatively that fossil fuel power plants location closest to the comparable small amount of energy it can capture 90 percent of the carbon PVWatts location is used. As shown be expected to deliver daily), a produced, the CRS estimates that in Table V: higher than average transmission solar would still be two-and-a-half cost and a shorter useful life ■■ The projected average capital times as expensive as its closest than comparable facilities. For cost for natural gas is $978 rival, integrated combined cycle instance, using EIA data, the per kilowatt-hour, and the coal. Under this scenario, if price Institute for Energy Research, a location-specific estimated cost were the only consideration, private group that analyzes the ranges from $893 in Houston, geothermal power would become economics of energy, estimates:47 Texas, to $1,650 in New York the electric provider of choice. City, New York. ■■ The average annualized cost of A More Recent Projection of an advanced combined cycle ■■ The average cost for wind the Cost of Solar Power Farms natural gas plant is $63.10 per power is $2,438 and ranges and Other Generating Plants. megawatt-hour. from $2,322 in Houston, The price of solar cells has fallen Texas, to $3,108 in Honolulu, ■■ The average annualized cost considerably since the CRS report. Hawaii. Moreover, the efficiency of solar of an advanced nuclear plant is cells has improved. Thus, recent ■■ The average for solar $113.90 per megawatt-hour. reports indicate that the cost of photovoltaic power is $4,755 ■■ The average annualized cost of centralized solar has fallen relative and ranges from $4,272 in an advanced coal-fired power to other sources. Knoxville, Tenn., to $6,526 in plant (with carbon capture Honolulu, Hawaii. In November 2010, the EIA technology) is $136.20 per issued “Updated Capital Cost Table V shows that even with megawatt-hour. Estimates for Electricity Generation increased costs associated with coal, Plants.” While the costs for nuclear and wind power plants, and ■■ The average annualized cost natural gas plants remained largely substantial declines in the cost of of a solar photovoltaic plant is unchanged, the capital costs for solar, there is no location where $210.70 per megawatt-hour. new coal-fired, nuclear and even solar’s capital costs match or beat Thus, while the average wind power plants increased any competing electric generating annualized cost of solar power has considerably — on average, 25 technology, with the exception of declined markedly since 2008 from percent higher for coal-fired and nuclear power. $255.41 to $210.70, it is still much nuclear power plants, and 21 more expensive than other electric percent higher for wind farms. By Annualized Cost of a Solar Power System over Its Operating power generating technologies. contrast, solar fell 10 percent due to increasing economies of scale Life. As the EIA notes, and as Since costs vary considerably and falling component costs.46 discussed above, capital costs are within regions, the EIA also only one factor in determining provided a minimum and a The 2010 EIA report provides the viability and attractiveness of maximum estimated cost for each both a national base case, or competing generating technologies. of the generating technologies. As average estimated cost, and Many might argue that the shown in Figure I: location-specific estimated costs annualized cost of newly built for varying electric generating electricity generating facilities is ■■ Total annualized costs for technologies. The EIA’s calculations the most important measure of the natural gas range from $57 to consider a variety of factors viability of solar power. $71 per megawatt-hour. 15
  • 16. Solar Power Prospects FIGURE I Range for Total System Annualized Cost (2009 $/megawatt-hour) $324 Minimum Maximum $155 $159 $126 $121 $111 $110 $115 $86 $82 $71 $57 Coal Advanced Coal Natural Gas Advanced Wind Solar Nuclear Photovoltaic Source: U.S. Energy Information Administration, “Levelized Cost of New Electricity Generating Technologies,” Table 2, 2010. Available at http://www.eia.doe.gov/oiaf/aeo/electricity_generation.html. ■■ Total costs range from $86 to Grid Parity: When? to secure long-term financing and $111 per megawatt-hour for investment.49 These subsidies are, coal-fired power plants. Based on the EIA’s most recent in fact, driving the cost declines in assessment of annualized costs, solar materials. Artificial demand ■■ Annualized costs for advanced solar is unlikely to be competitive is stoking expanded production, nuclear power plants range with conventional generating which is in turn lowering the costs from $110 to $121 per technologies by 2015 — the Obama of delivered solar arrays. megawatt-hour. administration’s optimistic forecast. Indeed, to be competitive by 2015, Even with subsidies, a 20 percent ■■ And total annualized costs range solar’s annualized costs would average decline in price is unlikely. from $159 to $324 per megawatt have to decline approximately A 10 percent average decline might hour for solar power plants. 10 percent each year. To reach be possible, but subsidies would Even under the best conditions, widespread grid parity by 2013, have to remain at or above where solar’s minimum annualized cost it would have to fall nearly 20 they are currently. [See Appendix ($158.70 per megawatt-hour) is percent each year. For solar to reach B, “The End of Subsidies.”] Conclusion higher than the maximum cost for widespread grid parity in such a each of the technologies considered, short time would require continued though only slightly so in the case of substantial government support and, Grid parity will be reached in advanced coal with carbon capture as importantly, the expectation that some locations sooner than in ($154.50 per megawatt-hour).48 such support will continue in order others, but it is still at least a decade 16
  • 17. away in most places. It will be but this expansion comes at the significantly displace species by reached sooner if electric power expense of native plant and animal making the land permanently prices begin to rise again, rather habitats. The Mojave Solar Park uninhabitable. Surveys have found than falling in conjunction with the under construction in Southern 25 desert tortoises on the site.58 price of natural gas as they have California is one such example. It Attempting to assuage critics, in the last two years. Widespread will require up to 6,000 acres for Brightsource Energy, the project parity in either 2013 or 2015 is an expected 553 megawatts of solar developer, has agreed to acquire highly unlikely. power.50 In contrast, a coal-fired thousands of acres of habitat to plant can generate over 6,000 offset the damage. However, it is It is also important to note that megawatts of power on less than unclear that this will halt the lawsuit if and when solar photovoltaic- 1,000 acres.51 or, more importantly, protect generated electric power reaches widespread grid parity, it will still In the rush to get large solar the tortoise. Animal relocations make up only a small part of the projects approved before a 30 are not always successful and overall electric power mix. Thus, percent federal grant program for it is uncertain whether the it will always be supplemental construction costs expired at the desert tortoises will thrive on to generating technologies that end of 2010, a number of new the proposed set-aside land. can provide consistent baseload and existing companies applied Plants May Need to Be Bigger. power or on-demand peaking to build solar farms on public The large solar developments power — neither of which solar land in California.52 There were proposed on federal lands in photovoltaic can satisfy. nine projects approved in 2010, California are solar thermal encompassing over 40,000 acres rather than solar photovoltaic. and able to produce roughly 4,500 Appendix A megawatts.53 Though approved This is important because solar thermal plants require fewer acres Environmental and initially, concern over the risk to to produce the same amount of various threatened and endangered National Security species and historic cultural electricity. If plans for the solar thermal plants are revised and Considerations artifacts threaten to block the solar photovoltaic is used instead, projects. Environmental groups Some advocate solar power for hundreds of acres more could be fear the desert tortoise — listed as perceived environmental and energy needed for each project.59 “vulnerable” by the International security-related benefits rather than Union for Conservation of In addition, rated capacity is not economic considerations. However, Nature — and other species, the same as expected power output. these advocates largely ignore the ranging from reptiles to sheep, are For instance, the capacity factor for negative environmental impacts at risk.54, 55 Some environmental coal-fired plants is 85 percent, so that solar power generation has on groups have filed lawsuits against a 1,200 megawatt plant would on the environment. Like any power the federal government over average produce 1,020 megawatts source, there are both benefits and its approval of the projects. of electricity. costs associated with electric power The proposed Ivanpah solar plant By contrast, solar photovoltaic’s generated from solar photovoltaic is at the center of a suit filed against capacity factor is quite low. Areas technology. the U.S. Department of the Interior, of high sunlight might have a Solar Sprawl. The term solar the Bureau of Land Management capacity factor of 23 percent, but in sprawl has been used to refer to and the Fish and Wildlife Service. areas of only moderate sunlight the the large land and resource usage The plaintiffs argue that the 370 capacity factor falls to 11 percent.60 that accompanies expanding solar megawatt operation was approved Thus, to produce the same amount energy projects. Solar farms often without adequate attention to of energy on average as a typical require huge tracts of land in the effect on animals, as well as nuclear or coal-fired power plant, a previously undeveloped areas in plants and groundwater.56, 57 The solar photovoltaic farm would have order to maximize energy output, suit claims construction could to be more than three times larger 17
  • 18. Solar Power Prospects As a result, imports of tellurium have soared along with the price. Federal and State Subsidies under Fire ■■ From 2003 to 2007 China The House of Representatives substantially reduced funding for supplied 13 percent of the various renewable technologies in its proposed budget for the United States’ imported remainder of fiscal year 2011. Though all these cuts might not be tellurium. enacted, less support in this and coming years seems likely from a Congress interested in reducing the budget deficit and national debt. ■■ By September 2010, China’s share of U.S. tellurium imports Even solar firms that have already received substantial government had grown to 43 percent, support are experiencing difficulties in the current uncertain making China the single investment environment. For instance, Solyndra Inc., a solar panel biggest source of imported manufacturer touted by President Obama as a model of a green tellurium. energy future, received $535 million in taxpayer loans to finance a new factory that would create 1,000 new jobs. Instead, it will close ■■ The U.S. Geological Survey an existing factory and keep its workforce at present levels.64 While notes that the price of tellurium its sales have grown in recent years, Solyndra has yet to make a increased 14-fold between profit. In July 2010 it withdrew plans for an initial public stock 2002 and 2006, and seven-fold offering.65 between 2004 and 2006. Not only does China have the In Massachusetts, despite receiving more than $58 million in only mine devoted to tellurium grants, loans and tax incentives in 2007 from the state (in addition production, a Chinese company is to federal support), Evergreen Solar decided to close its doors and the largest single producer of the start a joint venture in China. Eight hundred workers are being highly purified tellurium needed laid-off. One of the largest incentive packages offered to a company for thin-film solar cells. The top in Massachusetts history was not enough to keep Evergreen, with its American producer of thin-film $685 million in cumulative losses, in the state.66 photovoltaic solar cells, First Solar, is already the Chinese company’s largest tellurium customer. China’s share of world tellurium production in terms of rated capacity in sunny on China. The U.S. push for a larger will likely grow since it has also areas and seven to eight times larger “green” economy comes at a time become the world’s largest producer in less sunny areas. This would when China is expanding its own and user of copper. increase the size of any solar farm’s position in the solar power market. footprint considerably — adding up In 2003 China produced around 1 China has cut off supplies of to tens of thousands of acres. percent of the world’s solar panels, critical minerals to countries with but by 2010 its market share had which they have geopolitical National Security. Though solar increased to 43 percent.61 conflicts. For example, on power is called a renewable energy September 7, 2010, a Chinese source, the components required Tellurium is also produced as a fishing boat collided with a Japanese for installations can be difficult byproduct of copper purification. coast guard vessel in a disputed to obtain. For example, the rare As such, a number of countries portion of the East China Sea. When element tellurium is a necessary produce quantities of tellurium. Japan refused to release the captain, component in photovoltaic cells However, domestically, the China retaliated by withholding used in solar panels, but there is decline in lead mining and exports of rare earths used in currently only one tellurium mine on move to lower grades of copper electronics production.62 This is the entire planet — in the People’s ore — which require a different consistent with China’s overall Republic of China. This means that refining process — has reduced strategy of restricting export of rare U.S. production of solar cells relies domestically recovered tellurium. elements. Consider: 18
  • 19. ■■ China has eliminated export 2010, EU countries accounted The reduced incentives in Europe tax rebates for rare earth for more than 70 percent of and North America will likely lead elements while increasing solar energy demand. In 2009, to a worldwide fall in demand for export taxes to rates as high as Germany’s market alone accounted solar panels. This will slow the 25 percent. for 54 percent of the solar panels decline of solar array prices that has ■■ Further, China reduced its produced. These subsidies have resulted from economies of scale in export quota 40 percent from been economically costly, due to production. As noted earlier, in the 2009 to 2010. higher energy prices and direct past, when subsidies for solar power energy levies. were reduced, its use declined sig- This comes just as the U.S. For example, Germany’s renew- nificantly and prices for both panels government is pushing technologies and the power ceased to decline, or able energy act required utilities to that rely on these elements.63 declined at a much slower rate. pay generous prices — called feed in tariffs — for electricity produced Threats to U.S. Renewables Appendix B by renewables. As a result, renew- Portfolios. Even demand driven able power grew from 6 percent by renewable portfolio standards The End of Energy of generating capacity in 2000 to are under threat. In his State of the Subsidies 16 percent in 2009.67 Solar power Union address, President Obama is less than 2 percent of the total. lumped natural gas, clean coal Under the economic conditions The feed in tariff was €0.39 (about and nuclear power in with wind facing governments around the $0.54) — eight times the price Ger- and solar as clean fuels of the world, the current level of support mans pay for power generated by future. Some state legislatures are for solar developments is unlikely conventional fossil fuels. However, considering transforming renewable to continue. A program that due to fiscal constraints as a result portfolio standards into clean provides federal grants for up to of the global economic recession, energy standards, which would 30 percent of construction costs the German government has cut allow natural gas, clean coal or was continued for a year in the tariffs for large solar power facili- nuclear generated electricity to tax bill passed in December 2010. ties by 25 percent and for individual count toward the overall energy But even so, solar developers are roof-top solar energy production by goal. If this occurs, solar demand finding it difficult to finance the 15 percent. Further cuts are likely.68 will further decline. other 70 percent of construction Spain, the world’s largest Thus, it seems unlikely that solar costs. In part, this is because there solar power producer, has spent power costs will continue to decline is uncertainty concerning whether more than €23 billion (about $32 at the historically high rates they the grant program and the other billion) since 2002 supporting have in the past couple of years. subsidies and mandates that have the industry.69 However, the The decline in solar generated pushed solar growth in the past few government is reducing support electricity prices will arguably years will be continued. At least at for existing plants by more than 30 return to its historic average of current levels, such support seems percent and for new plants by 45 4 percent per year, absent the unlikely. [See sidebar, “Federal and percent. As a result, Spain’s solar tremendous government support State Subsidies.”] energy lobbying group predicts that drove the recent phenomenal Fewer Economies of Scale Due many solar companies will default but aberrant decline. If it does, all to Slowing Global Solar Power on their debt.70 else equal, it would not become cost Growth. Events in Europe make it France has also indicated that it competitive on an annualized basis even less likely that solar’s recent will implement a moratorium on with nuclear power until after 2020. rate of growth and cost decline new solar projects that are eligible In addition, it would take longer will continue. The European Union for tariffs, and the United Kingdom to match the price of electricity has been the leader in installing and Canada might also reconsider generated by coal-fired and natural solar. Indeed, from 2007 through their tariffs. gas power plants. 19
  • 20. Solar Power Prospects Endnotes 1. United States Energy Information Administration, “Electric Power Annual,” January 4, 2011. Available at http://www.eia.doe.gov/cneaf/ electricity/epa/epa_sum.html. Access verified April 19, 2011. 2. Weston A. Hermann, “Quantifying Global Energy Resources,” September 2006. Available at http://gcep.stanford.edu/pdfs/GCEP_Exergy_ Poster_web.pdf. Access verified April 19, 2011. 3. Renewable Energy Policy Network, “A Global Status Report,” July 2010. Also, United Nations Environment Programmed, “Global Trends in Green Energy 2009,” July 2010. Available at http://sefi.unep.org/fileadmin/media/sefi/docs/publications/FINAL_UNEP-REN21_Press_ Release_post_embargo.pdf. Access verified April 19, 2011. 4. National Renewable Energy Laboratory, “Concentrating Solar Power.” Available at http://www.nrel.gov/learning/re_csp.html. Access verified April 19, 2011. 5. Materials presently used for panels include monocrystalline silicon, polycrystalline silicon, cadmium telluride and copper indium selenide/ sulfide. Mark Z. Jacobson, “Review of Solutions to Global Warming, Air Pollution and Energy Security,” Energy and Environmental Science, December 2008, pages 148-173. Available at http://www.stanford.edu/group/efmh/jacobson/EnergyEnvRev1008.pdf. Access verified April 19, 2011. 6. International Energy Agency, “Technology Roadmap, Solar Voltaic Energy,” 2010. Available at http://www.iea.org/papers/2010/ pv_roadmap.pdf. Access verified April 19, 2011. 7. Joachim Luther and Armin Aberle, “Photovoltaics — Technology Paths Towards Grid Parity,” May 2010. Available at http://www.seris.sg/ site/servlet/linkableblob/main/3272/data/pdf_lu_solarcon_210510-data.pdf. Access verified April 19, 2011. 8. Solar Server, “Photovoltaics: Solar Electricity and Solar Cells in Theory and Practice.” Available at http://www.solarserver.com/ knowledge/basic-knowledge/photovoltaics.html. Access verified April 19, 2011. 9. International Energy Agency, “World Energy Outlook, 2006.” Available at http://www.iea.org/weo/2006.asp. Access verified April 19, 2011. 10. Global Subsidies Initiative, “Relative Subsidies to Energy Sources, GSI Estimates,” April 2010. Available at http://www.globalsubsidies. org/files/assets/relative_energy_subsidies.pdf. Access verified April 19, 2011. 11. Energy Information Administration, “Federal Financial Interventions and Subsidies in Energy Markets 2007,” April 2008. Available at http://www.eia.doe.gov/oiaf/servicerpt/subsidy2/index.html. Access verified April 19, 2011. 12. Alex Morales, “Renewable Energy Subsidies Worldwide Reached $57 Billion in 2009, IEA Says,” Bloomberg, November 10, 2010. Available at http://www.bloomberg.com/news/2010-11-09/renewable-energy-subsidies-worldwide-reached-57-billion-in-2009-iea-says. html. Access verified April 19, 2011. 13. Energy Information Administration, “Federal Financial Interventions and Subsidies in Energy Markets 2007.” 14. The remaining subsidies were for electric power production (not fuel specific), consumer subsidies and conservation programs. Ibid. 15. Ibid. 16. Ibid. 17. Ryan Wiser and Galen Barbose, “Renewable Portfolio Standards in the United States,” Lawrence Berkeley National Laboratory, April, 2008. Available at http://eetd.lbl.gov/ea/emp/reports/lbnl-154e-revised.pdf. Access verified April 19, 2011. 18. Ibid. 19. Andrew Mills et al., “Understanding Variability and Uncertainty on Photovoltaics for Integration with the Electrical Power System,” Ernest Orlando Lawrence Berkeley National Laboratory, December 2009. Available at http://eetd.lbl.gov/EA/EMP. Access verified April 19, 2011. 20. Paul Davidson, “Wind Energy Confronts a Shortage of Transmission Lines,” USA Today, February 26, 2008. Available at http://www. usatoday.com/money/industries/energy/environment/2008-02-25-wind-power-transmission_N.htm. Access verified April 19, 2011. 21. Peter Ng, “Draft Unit Costs Guidelines for Transmission Lines,” 2009. Available at http://www.caiso.com/2360/23609c2864470.pdf. Access verified April 19, 2011. 22. “The Great Transmission Heist,” Wall Street Journal, November 7, 2010. Available at http://online.wsj.com/article/SB10001424052702304 772804575558400606672006.html. Access verified April 19, 2011. 23. Ibid. 24. Andrew Mills and Ryan Wiser, “Implications of Wide-Area Geographic Diversity for Short-Term Variability of Solar Power,” Ernest Orlando Lawrence Berkeley National Laboratory, September 2010. Available at http://eetd.lbl.gov/ea/emp/reports/lbnl-3884e.pdf. Access verified April 19, 2011. 25. White House, “The Recovery Act: Transforming the American Economy Through Innovation,” August 2010. Available at http://www. whitehouse.gov/recovery/innovations/clean-renewable-energy. Access verified April 19, 2011. 26. Robert Bradley, Jr., “Solar Is Not an Infant Industry (So why is it perpetually hyped and subsidized?),” MasterResource, October 6, 2009. Available at http://www.masterresource.org/2009/10/solar-is-not-an-infant-industry-so-why-it-is-perpetually-hyped-and-subsidized/. Access verified April 19, 2011. 20
  • 21. 27. Robert Bradley, Jr., “Will Renewable Become Cost-Competitive Anytime Soon?” Institute for Energy Research, April 1, 2009. Available at http://www.instituteforenergyresearch.org/2009/04/01/will-renewables-become-cost-competitive-anytime-soon-the-siren-song-of-wind- and-solar-energy/. Access verified April 19, 2011. 28. Barry Commoner, The Poverty of Power (New York: Alfred A. Knopf, 1976), page 151. 29. Robert Bradley, Jr., “Will Renewable Become Cost-Competitive Anytime Soon?” 30. Renewable Energy Industry, testimony before the joint hearings of Subcommittees of the Committee on Energy and Commerce, 98th Congress, 1st Session. (Washington, D.C.: Government Printing Office, 1983), page 52. 31. Quoted in K. Wells, “As a National Goal, Renewable Energy Has An Uncertain Future,” Wall Street Journal, February 13, 1986. 32. Christopher Flavin and Nicholas Lenssen, Beyond the Petroleum Age: Designing a Solar Economy (Washington, D.C.: Worldwatch Institute, 1990), page 47. 33. Peter Lorenz, Dickon Pinner and Thomas Seitz, “The Economics of Solar Power,” McKinsey Quarterly, June 2008. See also, Balu Balagopal, Petros Paranikas and Justin Rose, “What’s Next for Alternative Energy?” Boston Consulting Group, November 2010. Available at http://www.bcg.com/documents/file65187.pdf. Access verified April 19, 2011. 34. Paul Denholm et al., “Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities,” National Renewable Energy Laboratory, Publication No. NREL/TP-6A2-46909, December 2009. Available at http://www.nrel.gov/docs/ fy10osti/46909.pdf. Access verified April 19, 2011. 35. Matt Croucher, “Optimal Deployment of Solar Index,” Electricity Journal, Vol. 23, No. 9, November 2010, pages 75-81. 36. Ryan Wiser et al., “Tracking the Sun II, the Installed Cost of Photovoltaics 1998-2008,” Lawrence Berkeley National Laboratory, October 2009. Available at http://eetd.lbl.gov/ea/emp/reports/lbnl-2674e.pdf. Access verified April 19, 2011. 37. Blue Pacific Solar Blog, “Solar Grid Parity, the Break-Even Point for PV is Beginning to Emerge,” November 16, 2010. Available at http:// www.bluepacificsolar.com/blog/?p=1664. Access verified April 19, 2011. 38. Joonki Soong et al., “The True Cost of Solar Power: Race to $1/W,” Photon Consulting, 2009. Available at http://www.photonconsulting. com/the_true_cost_of_solar_power_race_to_1w.php. Access verified April 19, 2011. 39. Ibid. See also, Dave Cavanaugh, “The New Solar Market, Pike Research,” 2010. Available at http://www.pikeresearch.com/research/ the-new-solar-market. Access verified April 19, 2011. And, Balu Balagopa, Petros Parnikis and Justin Rose, “What’s Next for Alternative Energy?” 40. White House, “The Recovery Act: Transforming the American Economy Through Innovation.” 41. Todd Woody, “Dark Days for Solar? Huge California Project Sold Off,” November 30, 2010. Available at http://www.grist.org/article/2010- 12-30-huge-california-solar-project-sold/. Access verified April 29, 2011. 42. Energy Information Administration, “Updated Capital Cost Estimates for Electricity Generation Plants,” November 2010. Available at http://tonto.eia.doe.gov/oiaf/beck_plantcosts/index.html. Access verified April 19, 2011. 43. In California, for example. Eric Wolff, “Solar Panel Costs Fall, but Utility Costs Rise,” North County Times, November 19, 2010. 44. Todd Woody, “Solar Energy Faces Test on Greenness,” New York Times, February 23, 2011. 45. Stan Kaplan, “Power Plants: Characteristics and Costs,” CRS Report for Congress. Available at http://www.fas.org/sgp/crs/misc/RL34746. pdf. Access verified April 19, 2011. 46. Energy Information Administration, “Updated Capital Cost Estimates for Electricity Generation Plants.” 47. Institute for Energy Research, “Levelized Cost of New Electricity Generating Technologies,” February 2010. Costs in 2016 using 2010 dollars. These figures shown do not include various federal and state financial incentives and subsidies, which would, of course, affect the relative 48. costs of the various technologies. 49. Energy Information Administration, “Federal Financial Interventions and Subsidies in Energy Markets 2007,” April 2008. Available at http://www.eia.doe.gov/oiaf/servicerpt/subsidy2/index.html. Access verified April 19, 2011. Joachim Luther and Armin Aberle, “Photovoltaics — Technology Paths Towards Grid Parity.” Peter Lorenz, Dickon Pinner and Thomas Seitz, “The Economics of Solar Power.” Balu Balagopal, Petros Paranikas and Justin Rose, “What’s Next for Alternative Energy?” International Energy Agency, “Technology Roadmap, Solar Photovoltaic Energy.” White House.gov, “The Recovery Act: Transforming the American Economy Through Innovation.” Paul Denholm et al., “Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities,” National Renewable Energy Laboratory, December 2009. Available at http://www.nrel.gov/docs/fy10osti/46909.pdf. Access verified April 19, 2011. Christopher Flavin and Nicholas Lenssen, Beyond the Petroleum Age: Designing a Solar Economy. 50. Amir Ben David, “Israeli Company to Build Largest Solar Park in World in US,” YNET News Online, July 27, 2007. Available at http:// www.ynetnews.com/articles/0,7340,L-3430085,00.html. Access verified April 19, 2011. 51. InfoMine Online, “Only Fools Pay for Wind Power,” June 2, 2010. Available at http://www.infomine.com/publications/docs/ Boleneus2010b.pdf. Access verified April 19, 2011. 21
  • 22. Solar Power Prospects 52. Todd Woody, “Warp Speed for Risky Solar Ventures,” New York Times Online, October 29, 2010. Available at http://green.blogs.nytimes. com/2010/10/29/warp-speed-for-risky-ventures. Access verified April 19, 2011. 53. U.S. Department of the Interior Bureau of Land Management, “Fast Track Renewable Energy Projects,” updated September 27, 2010. Available at http://www.blm.gov/ca/st/en/fo/cdd/alternative_energy/fast-trackfastfacts.html. Access verified April 19, 2011. 54. IUCN Red List of Threatened Species, “Gopherus agassizii (Desert Tortoise),” International Union for Conservation of Nature, 2010. Available at http://www.iucnredlist.org/apps/redlist/details/9400/0. Access verified April 19, 2011. 55. Todd Woody, “For the Desert Tortoise, a Threat and an Opportunity,” New York Times Online, November 17, 2010. Available at http:// green.blogs.nytimes.com/2010/11/17/for-the-desert-tortoise-a-threat-and-an-opportunity. Access verified April 19, 2011. 56. Todd Woody, “Native American Group Sues to Block California’s Big Solar Projects,” Grist, December 29, 2010. Available at http://www. grist.org/article/2010-12-29-native-american-group-sues-to-block-californias-big-solar. Access verified April 19, 2011. 57. Nichola Groom, “Conservation Group Sues to Stop California Solar Plant,” Reuters Online, January 17, 2011. Available at http://www. reuters.com/article/2011/01/17/us-brightsource-idUSTRE70G0VB20110117. Access verified April 19, 2011. 58. Paul Danish, “How To Stop Worrying and Save the Desert Tortoise,” Boulder Weekly Online, March 25, 2010. Available at http://www. boulderweekly.com/article-2109-how-to-quit-worrying-and-save-the-desert-tortoise.html. Access verified April 19, 2011. 59. Patrick O’Grady, “Tessera Solar Sells California Project to K Road Sun,” Phoenix Business Journal, December 29, 2010. Available at http://www.bizjournals.com/phoenix/news/2010/12/29/tessera-sells-california-project.html. Access verified April 19, 2011. 60. International Energy Agency, “Technology Roadmap, Solar Voltaic Energy,” 2010. Available at http://www.iea.org/papers/2010/ pv_roadmap.pdf. Access verified April 19, 2011. 61. H. Sterling Burnett and Wesley Dwyer, “Will Green Energy Make the United States Less Secure?” National Center for Policy Analysis, Brief Analysis No. 739, February 10, 2011. Available at http://www.ncpa.org/pub/ba739. Access verified April 19, 2011. 62. Ibid. 63. Ibid. 64. George Avalos, “Freemont Solar Panel Maker Solyndra Scales Back Expansion Plans,” Oakland Tribune, November 3, 2010. 65. Poornima Gupta, “Solyndra Withdraws IPO, Raises $175 Million,” Reuters, June 18, 2010. Available at http://www.reuters.com/ article/2010/06/18/solyndra-ipo-idUSN1814596320100618. Access verified April 19, 2011. 66. “Solar Power Eclipse,” Wall Street Journal, January 18, 2011. Available at http://thegwpf.org/opinion-pros-a-cons/2247-solar-power- eclipse.html. Access verified April 19, 2011. 67. Datamonitor, “Feed in Tariffs in Germany: Consumers Are Paying the Price for Renewable Energy Development,” October 25, 2010. Available at http://www.datamonitor.com/store/News/feed_in_tariffs_in_germany_consumers_are_paying_the_price_for_renewable_ energy_development?productid=E0D6E46B-6C78-49B5-A570-0E145688F9CD. Access verified April 19, 2011. 68. Markus Wacket, “Germany to Slash Solar Panel Subsidies,” Reuters, January 20, 2010. 69. Eric Reguly, “Austerity Pulling Plug on Europe’s Green Energy Subsidies,” The Globe and Mail (Canada), January 26, 2011. 70. Ibid. About the Author H. Sterling Burnett is a senior fellow at the National Center for Policy Analysis. His work primarily focuses on the intersection between ethics, economics and politics in relation to environmental issues. He has numerous publications to his credit in academic journals, magazines and daily newspapers, including Environmental Ethics, Ethics, the Texas Review of Law & Politics, the Washington Post, USA Today and Forbes. He has provided invited testimony before the United States Congress and to various state legislatures. Burnett received his Ph.D. in Philosophy from Bowling Green State University in Ohio in 2001. Burnett blogs about environmental issues and more at www.environmentblog.ncpa.org. 22
  • 23. About the NCPA A major NCPA study, “Wealth, Inheri- The NCPA is a nonprofit, nonpartisan organization established in tance and the Estate Tax,” completely 1983. Its aim is to examine public policies in areas that have a undermines the claim by proponents of the significant impact on the lives of all Americans — retirement, health estate tax that it prevents the concentration of wealth in the hands of financial care, education, taxes, the economy, the environment — and to dynasties. Actually, the contribution of propose innovative, market-driven solutions. The NCPA seeks to inheritances to the distribution of wealth in unleash the power of ideas for positive change by identifying, the United States is surprisingly small. encouraging and aggressively marketing the best scholarly research. Senate Majority Leader Bill Frist (R-TN) and Senator Jon Kyl (R-AZ) distributed a letter to their colleagues about the study. Health Care Policy. In his letter, Sen. Frist said, “I hope this The NCPA is probably best known for NCPA President report will offer you a fresh perspective on developing the concept of Health Savings John C. Goodman is called the merits of this issue. Now is the time for Accounts (HSAs), previously known as the “Father of HSAs” by us to do something about the death tax.” The Wall Street Journal, WebMD Medical Savings Accounts (MSAs). and the National Journal. Retirement Reform. NCPA President John C. Goodman is With a grant from the NCPA, economists widely acknowledged (Wall Street at Texas A&M University developed a Journal, WebMD and the National model to evaluate the future of Social Journal) as the “Father of HSAs.” NCPA Taxes & Economic Growth. Security and Medicare, working under the research, public education and briefings The NCPA helped shape the pro-growth direction of Thomas R. Saving, who for for members of Congress and the White approach to tax policy during the 1990s. years was one of two private-sector House staff helped lead Congress to A package of tax cuts designed by the trustees of Social Security and Medicare. approve a pilot MSA program for small NCPA and the U.S. Chamber of Com- The NCPA study, “Ten Steps to Baby businesses and the self-employed in 1996 merce in 1991 became the core of the Boomer Retirement,” shows that as 77 and to vote in 1997 to allow Medicare Contract with America in 1994. million baby boomers begin to retire, the beneficiaries to have MSAs. In 2003, as Three of the five proposals (capital gains nation’s institutions are totally unprepared. part of Medicare reform, Congress and tax cut, Roth IRA and eliminating the Promises made under Social Security, the President made HSAs available to all Social Security earnings penalty) Medicare and Medicaid are inadequately nonseniors, potentially revolutionizing became law. A fourth proposal — funded. State and local institutions are not the entire health care industry. HSAs now rolling back the tax on Social Security doing better — millions of government are potentially available to 250 million benefits — passed the House of Repre- workers are discovering that their pensions nonelderly Americans. sentatives in summer 2002. The NCPA’s are under-funded and local governments The NCPA outlined the concept of proposal for an across-the-board tax cut are retrenching on post-retirement health using federal tax credits to encourage became the centerpiece of President care promises. private health insurance and helped Bush’s tax cut proposals. formulate bipartisan proposals in both the NCPA research demonstrates the Pension Reform. Senate and the House. The NCPA and benefits of shifting the tax burden on Pension reforms signed into law include BlueCross BlueShield of Texas devel- work and productive investment to ideas to improve 401(k)s developed and oped a plan to use money that federal, consumption. An NCPA study by Boston proposed by the NCPA and the Brookings state and local governments now spend University economist Laurence Kotlikoff Institution. Among the NCPA/Brookings on indigent health care to help the poor analyzed three versions of a consumption 401(k) reforms are automatic enrollment purchase health insurance. The SPN tax: a flat tax, a value-added tax and a of employees into companies’ 401(k) Medicaid Exchange, an initiative of the national sales tax. Based on this work, Dr. plans, automatic contribution rate NCPA for the State Policy Network, is Goodman wrote a full-page editorial for increases so that workers’ contributions identifying and sharing the best ideas for Forbes (“A Kinder, Gentler Flat Tax”) grow with their wages, and better default health care reform with researchers and advocating a version of the flat tax that is investment options for workers who do policymakers in every state. both progressive and fair. not make an investment choice. 23
  • 24. About the NCPA The NCPA’s online Social Security calculator allows visitors to discover their expected taxes and benefits and how What Others Say About the NCPA much they would have accumulated had their taxes been invested privately. “The NCPA generates more analysis per Environment & Energy. dollar than any think tank in the country. It does an amazingly good job of going out The NCPA’s E-Team is one of the largest and finding the right things and talking about collections of energy and environmental policy experts and scientists who believe them in intelligent ways.” that sound science, economic prosperity Newt Gingrich, former Speaker of the and protecting the environment are U.S. House of Representatives compatible. The team seeks to correct misinformation and promote sensible solutions to energy and environment problems. A pathbreaking 2001 NCPA “We know what works. It’s what the NCPA study showed that the costs of the Kyoto talks about: limited government, economic agreement to reduce carbon emissions in freedom; things like Health Savings Accounts. developed countries would far exceed These things work, allowing people choices. any benefits. We’ve seen how this created America.” John Stossel, Educating the next generation. former co-anchor ABC-TV’s 20/20 The NCPA’s Debate Central is the most comprehensive online site for free information for 400,000 U.S. high school debaters. In 2006, the site drew more than “I don’t know of any organization in America one million hits per month. Debate that produces better ideas with less money Central received the prestigious Temple- than the NCPA.” ton Freedom Prize for Student Outreach. Phil Gramm, Promoting Ideas. former U.S. Senator NCPA studies, ideas and experts are quoted frequently in news stories nationwide. Columns written by NCPA scholars appear regularly in national publications such as the Wall Street “Thank you . . . for advocating such radical Journal, the Washington Times, USA causes as balanced budgets, limited government Today and many other major-market and tax reform, and to be able to try and bring daily newspapers, as well as on radio power back to the people.” talk shows, on television public affairs programs, and in public policy newslet- Tommy Thompson, ters. According to media figures from former Secretary of Health and Human Services BurrellesLuce, more than 900,000 people daily read or hear about NCPA ideas and activities somewhere in the United States. The NCPA is a 501(c)(3) nonprofit public policy organization. We depend entirely on the financial support of individuals, corporations and foundations that believe in private sector solutions to public policy problems. You can contribute to our effort by mailing your donation to our Dallas headquarters at 12770 Coit Road, Suite 800, Dallas, TX 75251, or visiting our Web site at www.ncpa.org and clicking “Support Us.”