Green Gas Support Scheme and Green Gas Levy

About the GGSS and GGL

The Green Gas Support Scheme (GGSS)

The Green Gas Support Scheme (GGSS) is a government environmental scheme that provides financial incentives for new anaerobic digestion biomethane plants to increase the proportion of green gas in the gas grid.

The scheme is open to applicants in England, Scotland and Wales from 30 November 2021 and will close for applications on 31 March 2028.

Registered participants will receive quarterly payments over a period of 15 years. Payments are based on the amount of eligible biomethane that a participant injects into the gas grid.

The Green Gas Levy (GGL)

The Green Gas Levy (GGL) places obligations on licensed gas suppliers, including a requirement to make quarterly levy payments, in order to fund the GGSS.

Our role

The GGSS policy is set by the Department for Energy Security and Net Zero but the scheme is administered by Ofgem.

We assess and, where appropriate, register GGSS applications that have been made to us. Assessments are made based on the evidence submitted with the application and the circumstances specific to the biomethane production plant.

Applicants must meet the eligibility criteria to be granted registration. Our functions also include validating and calculating quarterly participant’s periodic data and support payments, monitoring and administering compliance with the requirements of the regulations.

Our functions in relation to our role in administering the GGL include, but are not limited to, validating and calculating quarterly meter point data, credit cover requirements and levy payments due, monitoring and administering compliance.

For both the GGSS and GGL we have published procedural guidance. It is the responsibility of each applicant, participants or supplier to understand the requirements of the GGSS Regulations and how these apply. Our guidance represents our approach to matters concerning the general administration of the scheme in accordance with the GGSS Regulations but is not intended to be a definitive guide or to provide legal advice.

We are unable to comment on future policy amendments or speculative applications and scenarios.