Guidance
CHPQA guidance note 44: Use of CHPQA in respect of the Renewables Obligation and Contracts for Difference
Guidance on accessing support measures for the electrical output of renewable combined heat and power (CHP).
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Details
This guidance note helps operators of biomass and waste-fueled CHP schemes to:
- understand the role of the CHPQA GN44 Certificate in accessing support measures for the electrical output of renewable CHP
- interpret eligibility for renewables obligation certificates (ROCs) under specific circumstances, such as waste fuel use
- determine the Qualifying Power Output (QPO) if their biomass or waste-fueled scheme fails the Quality Index (QI) threshold when using the QI formulae shown in GN44
The various issues relate to varying periods.
Updates to this page
Published 1 September 2021
Last updated 26 March 2026
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Updated 2026 to align with the CHPQA Portal now hosted on GOV.UK.
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First published.