Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, whether he has made a comparative assessment of the effectiveness of the retrofitting measures fitted in schools through the Public Sector Decarbonisation Scheme.

There are two ongoing evaluations for the Public Sector Decarbonisation Scheme underway, covering comprehensive process, impact, and value-for-money evaluations of Phases 1 and 3. Evaluation activity for Phase 2, proportionate to its size and budget, is integrated across the two contracts. Findings of these evaluations, including consideration of the effectiveness of retrofitting measures in light of the scheme objectives, will be published in due course. There is inevitably some time lag before this work can be carried out, allowing for project installation and commissioning to be completed and data to be collected, usually for at least a full heating season post-completion.