CHPQA guidance note 25: Determination of CHP qualifying fuel input

Guidance on how to determine CHP qualifying fuel input.

From:: Department for Energy Security and Net Zero
Published: 1 September 2021
Last updated: 26 March 2026 — See all updates

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A CHP scheme must achieve a minimum (threshold) power efficiency of 20% for all of its fuel inputs to be considered Good Quality CHP.

Schemes that fail to achieve the power efficiency threshold must calculate CHP qualifying fuel input (CHP QFI). This is the fuel input that would have achieved the power efficiency threshold.

Published 1 September 2021

Last updated 26 March 2026 show all updates

26 March 2026
Updated 2026 to align with the CHPQA Portal now hosted on 扒哥吃瓜.
1 September 2021
First published.

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