Guidance
CHPQA unit list
This CHP unit list provides 'specs' so small engine-based CHP schemes can check their performance against the design performance of the relevant unit.
Documents
Details
CHPQA Unit list allows small engine based CHP schemes (<500 kWe) to check their performance against the design performance of the relevant unit and under specified conditions to use the efficiency information in estimating the fuel input and/or heat output on their CHPQA submission.
It is not intended to be:
- a list of approved or certified CHP units
- a means for gaining endorsement or approval
Updates to this page
Published 1 September 2021
Last updated 26 March 2026
+ show all updates
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Updated 2026 to align with the CHPQA Portal now hosted on GOV.UK.
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First published.