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 regulatory demands. The workshop will be led by Casimir Iwaszkiewicz, an expert in energy efficiency, and will include presentations on potential impacts of energy use and solutions, as well as a facilitated discussion. Attendees will receive materials to assess their museum's energy performance and priorities.