Written Question·Department for Energy Security and Net Zero·UIN 86087
Energy Performance Certificates: Solar Power
Tabled: 28 October 2025
Answered: 5 November 2025
Question
David Smith
Labour — North Northumberland
To ask the Secretary of State for Energy Security and Net Zero, how solar schemes that contribute to residential energy efficiency are accounted for when measuring energy performance certificate ratings.
Answer
Martin McCluskeySolar photovoltaic (PV) is currently reflected in the domestic Energy Performance Certificate (EPC) rating, which is based on energy costs. Electricity generated by PV is assigned a value and deducted from the property’s energy cost, improving the EPC Rat...
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