Skip to main content
Guidance

Calculating greenhouse gas emissions on the Green Gas Support Scheme

Methodologies and guidance for calculating greenhouse gas emissions associated with the production of biomethane on the Green Gas Support Scheme (GGSS).

Updates to this page

From:
Department for Energy Security and Net Zero
Published:
9 September 2021
Last updated:
18 February 2025
Show all updates

  1. We have added guidance on calculating fugitive methane emissions and a GGSS calculator .

  2. Document updated: revisions listed in the Details section of the page.

  3. We have updated the first equation on p.3 to reflect the 2020 Corrigendum OJ L311 of RED II.

  4. Final version of guidance published, alongside launch of the Green Gas Support Scheme (GGSS).

  5. First published.

Documents

Methods of calculating greenhouse gas emissions (revised February 2024)

PDF, 397 KB, 9 pages

Calculating fugitive methane emissions

PDF, 248 KB, 14 pages

GGSS greenhouse gas emissions calculator

MS Excel Spreadsheet, 731 KB

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email alt.formats@energysecurity.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

GGSS calculator user guide

PDF, 1.85 MB, 57 pages

Details

These documents are to help Green Gas Support Scheme (GGSS) participants and applicants accurately report their greenhouse gas (GHG) emissions as part of the scheme’s sustainability requirements.

Methods of calculating greenhouse gas emissions explains the ‘actual value’ and ‘default value’ methods for calculating lifecycle greenhouse gas emissions associated with the production of biomethane from biogas.

Calculating fugitive methane emissions sets out how applicants can report their fugitive methane emissions as part of the ‘actual value’ method set out in the main Methods document.

The GGSS greenhouse gas calculator (and associated user guide) is for calculating the greenhouse gas emissions of biomethane injected into the grid, using the ‘actual value’ method.

Sign up for emails or print this page