Green Gas Support Scheme guidance


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The Green Gas Support Scheme (GGSS) is designed to support the deployment of new anaerobic digestion (AD) biomethane plants to increase the proportion of green gas in the gas grid. Support will be provided to registered biomethane producers based on the volume of eligible biomethane, produced from AD, that they inject into the gas grid. The Regulations currently allow applications to be made until 30 November 2025.

This guidance outlines Ofgem’s administration of the GGSS. This guidance is for biomethane producers wishing to apply to the scheme, tariff guarantee holders, and scheme participants but associated industries and organisations, consumer groups and the public sector may also be interested in this document.

Ofgem's administration of the associated Green Gas Levy (GGL) is outlined in a separate document, which is available here: Green Gas Levy Guidance.

This version of the document supersedes the previous version (v1.1) published in June 2022.