PARLIAMENTARY WRITTEN QUESTION
(3 February 2026)
Question Asked
Asked by:
Steff Aquarone (Liberal Democrat)
Answer
Installers participate in the Energy Company Obligation (ECO4) and access funding only by delivering measures on behalf of obligated energy suppliers. ECO4 is not government‑funded, rather suppliers pay for installations and recover costs through their customers’ bills. To work under ECO4, installers must be TrustMark‑registered and comply with relevant standards for installing energy efficiency measures. Suppliers decide with which installers they contract.
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