Guidance

CHPQA appendix 4: Determination of Z-ratio by plant performance test

Example 4 outlines determination of Z-ratio by plant performance test.

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

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CHPQA appendix 4: Example 4 - Determination of Z-ratio by plant performance test

PDF, 219 KB, 3 pages

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Example 4 outlines determination of Z-ratio by plant performance test.

Updates to this page

Published 1 September 2021
Last updated 26 March 2026 + show all updates

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

  2. First published.

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