This document announces a half-day workshop on energy efficiency for staff and volunteers at non-national museums in London. The workshop will be held on March 26 at the Museum of London and has 30 free spaces available. It will provide practical guidance on improving energy efficiency to address rising costs and help museums adapt to new demands and funding requirements. The workshop will be led by Casimir Iwaszkiewicz, an expert in energy efficiency, and will include presentations on scenarios and solutions, and a facilitated discussion on identifying opportunities to increase efficiency at participants' organizations.