Green Gas Levy

The Green Gas Support Scheme (GGSS) pays new anaerobic digestion plants for the biomethane they inject into the gas grid. The Green Gas Support Scheme Regulations 2021 (SI 2021/1335) set it up, and Ofgem runs it. Plants receive quarterly payments for up to 15 years. The scheme closes to new stage 1 applications on 31 March 2028.

The Green Gas Levy pays for the scheme, under Part 7 of the same Regulations. Licensed fossil fuel gas suppliers in Great Britain pay a quarterly levy to Ofgem, based on the number of meter points each serves. The money covers payments to scheme participants and Ofgem's running costs.

The Secretary of State sets the levy rate for each scheme year, which runs 1 April to 31 March, and must publish it by the 31 December before. The rate is in pence per meter point per day, so it is a fixed cost per MPRN that does not change with the kWh used.

Key facts:

• 2026-27 rate: 1.046p per meter point per day, £3.82 per meter for the year
• 2025-26 rate: 0.821p per meter point per day (£3.00 a year), so the rate rose 27.4%
• Paid by licensed fossil fuel gas suppliers, quarterly, on meter points served
• Rate set by DESNZ; scheme run by Ofgem
• GGSS closes to new stage 1 applications on 31 March 2028

EnergyCode does not hold the Green Gas Levy as a per-period rate. In the Pricing Engine it is a seeded, editable gas entry in Other costs, at the published pence per meter point per day. It is not priced bottom-up and not validated on invoices.