Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, with reference to the Electrification of Heat Demonstration project, what is the (a) mean average, (b) lower quartile and (c) upper quartile coefficient of performance for air source heat pumps.

Interim heat pump performance from the Electrification of Heat Demonstration project is currently being reviewed and quality assured. Project findings, including heat pump performance, will be released in due course following the completion of quality assurance processes.