Guidance

CHPQA guidance note 24: Determination of scheme quality

Guidance on how the quality of a CHP scheme is determined.

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

Documents

CHPQA guidance note 24: Determination of scheme quality

PDF, 151 KB, 3 pages

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Details

The Quality Index (QI) is used as a basic parameter for assessing a CHP Scheme.

This is a measure of the overall energy efficiency of a CHP Scheme that takes account of the relative values, in energy terms, of power and heat.

Published 1 September 2021

Last updated 26 March 2026 + show all updates

1. 26 March 2026

   Updated 2026 to align with the CHPQA Portal now hosted on GOV.UK.

2. 1 September 2021

   First published.