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Version Control Index
GUIDANCE NOTE 00: Introduction to the CHPQA Guidance Notes
GUIDANCE NOTE 1: CHPQA Application for Registration (Form F1)
GUIDANCE NOTE 2: CHP Scheme Description (Form F2)
GUIDANCE NOTE 2s: CHP Scheme Description (Form F2(S))
GUIDANCE NOTE 3 Self-Assessment for Proposed New and Upgraded CHP Schemes (Form F3)
GUIDANCE NOTE 3s: Self Assessment of Proposed New CHP Schemes (Form F3(S))
GUIDANCE NOTE 4: Self-Assessment for Existing Schemes (Form F4)
GUIDANCE NOTE 4s: Self-Assessment for Existing Schemes (Form F4(S))
GUIDANCE NOTE 10: Defining Good Quality CHP
GUIDANCE NOTE 11: CHP Scheme Definition
GUIDANCE NOTE 12: CHP Scheme Description
GUIDANCE NOTE 13: CHP Scheme Monitoring
GUIDANCE NOTE 14: CHP Scheme Energy Inputs
GUIDANCE NOTE 15: CHP Scheme Power Outputs
GUIDANCE NOTE 16: CHP Scheme Heat Outputs
GUIDANCE NOTE 17: Uncertainty in Metered Inputs and Outputs  
GUIDANCE NOTE 18: Uncertainty in Calculated Energy Inputs and Outputs  
GUIDANCE NOTE 19: Adjustment of Energy Inputs and Outputs for Excessive Uncertainty  
GUIDANCE NOTE 20: Indirect Determination of Energy Inputs
GUIDANCE NOTE 21: Indirect Determination of Heat Outputs
GUIDANCE NOTE 22: Indirect Determination of Mechanical Power Outputs
GUIDANCE NOTE 23: Correction of Bias in Inputs and Outputs
GUIDANCE NOTE 24: Determination of Scheme Quality
GUIDANCE NOTE 25: Determination of CHP Qualifying Fuel Input
GUIDANCE NOTE 26: Determination of CHP Qualifying Power Output
GUIDANCE NOTE 27: Determination of CHP Qualifying Power Capacity
GUIDANCE NOTE 28: The Determination of Z Ratio
GUIDANCE NOTE 30: CHP Serving Community Heating
GUIDANCE NOTE 31: CHP Schemes Less Than 2MWe  
GUIDANCE NOTE 41: Use of CHPQA to Obtain CCL Exemption
GUIDANCE NOTE 42: Use of CHPQA to Obtain Enhanced Capital Allowances  
GUIDANCE NOTE 43: Use of CHPQA to Obtain Exemption from Business Rating of CHP Plant and Machinery  
Appendix 1: Example 1 - a Simple Small-Scale chpScheme
Appendix 2: Example 2 - a CCGT Scheme with Mixed Fuels
Appendix 3: Example 3 - Determination of Useful Heat Output by Direct Use of Gas Turbine (or Engine) Exhaust Gases  
Appendix 4: Example 4 - Determination of Z-Ratio by Plant Performance Test  
Generic Scheme Energy Flow Diagrams  
Summary of Standards  
Glossary  

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The CHPQA Guidance Notes are structured as follows:

 - GN0 to GN9 Introduction

 - GN10 to GN16 Scheme Details  and Thresholds

 - GN17 to GN29 CHPQA Analysis

 - GN30 to GN39 Treatment of  Special Cases

 - GN40 to GN49 Uses for CHPQA

CHPQA CHP Unit List
(Specs' for CHP's <500KWe)

IMPORTANT

These Guidance Notes are comprehensive and cover a wide variety of CHP Schemes. Not all Guidance Notes are applicable to every CHP Scheme.

Read guidance set out in GN2 before completing Form F2
Read guidance set out in GN4 before completing Form F4
Refer to GN31 and Guidance Notes for Forms F2 and F4 (short) for simplified arrangements for CHP Schemes <2MWe
Appendices 1 and 2 show how the Forms can be completed for small scale and large scale CHP Schemes

Registration and Certification under CHPQA is available to CHP Schemes in the whole of the United Kingdom (UK) of Great Britain and Northern Ireland or owned by companies registered here. In addition, overseas CHP schemes that wish to export electricity from Good Quality CHP into the UK may also apply.

The Guidance Notes should be read in conjunction with the CHPQA Standard (also downloadable from this website), which sets out definitions, criteria and methodologies for the operation of 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. A number of worked examples are also included.

The purpose of the Guidance Notes is to help and guide applicants in completing the required forms and in carrying out Self-assessment of their CHP Schemes. They may be updated from time to time and the latest version of each Note and Form will be held on this website.

Whilst this document includes issues relating to the use of CHPQA for determining eligibility for fiscal benefits, where further clarification is required, reference should be made to the appropriate Government Department.

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