Green Gas Support Scheme 2022 Annual Tariff Review: call for evidence

The Green Gas Support Scheme (GGSS) makes tariff payments to biomethane producers for gas that they inject into the grid. It was launched on 30 November 2021 with initial tariffs set in the Green Gas Support Scheme Regulations 2021. The use of biomethane, or green gas, has an important role to play in reducing the UK’s emissions by lowering the climate change impact of gas supply. Biomethane is produced by the capture and processing of emissions from the decomposition of organic matter, including food and agricultural waste. Its use has the dual benefits of reducing emissions from the gas grid, while reducing emissions from waste. The GGSS regulations allow tariffs to be increased, decreased or held each year from 2022 to 2024. They can then reduce every quarter for the rest of the year if a degression is triggered. The Annual Tariff Review (ATR) informs the decision to change or maintain tariffs, acting to ensure that payments continue to incentivise the