Combined heat and power quality assurance (CHPQA) guidance notes
Certification for good quality combined heat and power (CHP).
Update: 2 September 2025
A new Combined Heat and Power Quality Assurance (CHPQA) self-assessment portal is now available.
You need to log on to the new portal to register with the聽CHPQA聽scheme and use it to submit your self-assessment for certification for your next submission - see the section聽Registering with聽CHPQA.
We are updating these pages and any linked guidance.
The legacy聽CHPQA聽digital service is now redundant, and you no longer need to complete the following forms:
- F1 - to register with the聽CHPQA听辫谤辞驳谤补尘尘别
- F2 or F2(s) - to provide a description of聽CHP聽schemes to be self-assessed where already commissioned
- F3 or F3(s) - self-assessment for proposed or predicted, new or upgraded聽CHP听厂肠丑别尘别蝉
- F4 or F4(s) - self-assessment for actual performance data for existing schemes for the previous calendar year
If you have any questions, please聽contact the聽CHPQA听笔谤辞驳谤补尘尘别.
Simple guides to CHPQA
This series of short, simplified guides is aimed at those new to the programme, or who need a quick refresher on key topics.
CHPQA guidance notes
The guidance notes help and guide applicants in completing the required forms and in carrying out self-assessment of their combined heat and power (CHP) schemes. They may be updated from time to time and the latest version of each notes and form will be available on the website.
罢丑别听CHPQA聽Guidance Notes are structured as follows:
- GN0 to GN9: Introduction
- GN10 to GN16: Scheme Details and Thresholds
- GN17 to GN29:聽CHPQA听础苍补濒测蝉颈蝉
- GN30 to GN39: Treatment of Special Cases
- GN40 to GN49: Uses for聽CHPQA
- GN50: Quantifying And Justifying Useful Heat Outputs
- GN60: Temporary COVID-19 Easement
Read the guidance notes in conjunction with the聽CHPQA听厂迟补苍诲补谤诲, which sets out definitions, criteria and methodologies for the operation of聽CHPQA. The guidance notes provide detailed information on how the Standard will be interpreted by government departments and agencies as well as guidance on compliance with the Standard. They include a number of worked examples.
Use of CHPQA to obtain Enhanced Capital Allowances
Updates to this page
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Published the CHPQA glossary.
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Updated 2026 to align with the CHPQA Portal now hosted on 扒哥吃瓜.
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First published.