Green Gas Levy (GGL): rates, underlying variables, mutualisation threshold for the 2023-2024 financial year
Updated 20 December 2024
Applies to England, Scotland and Wales
漏 Crown copyright 2024
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BEIS聽has a regulatory duty under to publish the Green Gas Levy (GGL) rate for each scheme year (beginning 1 April) by 31 December of the preceding year.
GGL聽levy rates
罢丑别听GGL聽levy rate for the 2023-2024 scheme year (1 April 2023 to 31 March 2024):
- 0.122p per meter per day, equivalent to 45p per meter over the period
Underlying variables
In line with the regulations, the 2023-2024 levy rate has been calculated based on the following variables:
| Variable | 2023-2024 |
|---|---|
| A 鈥� Adjustment factor | 1.00653 |
| SB 鈥� Projected scheme expenditure * | 拢37,832,570 |
| SD 鈥� Forecast scheme year end surplus | 拢46,822,210 |
| AA 鈥� Ofgem鈥檚 total forecasted administration costs | 拢3,080,000 |
| TY 鈥� True-up from scheme year before last | 拢0 |
| TD 鈥� Year end deficit from scheme year before last | 拢0 |
| QL 鈥� Quarterly lag uplift | 拢15,887,211 |
| H - Headroom | 拢1,256,645 |
| I 鈥� Interest accrued on levy funds held in Ofgem bank account | 拢0 |
| Ofgem鈥檚 estimated administration costs for carrying out a mutualisation process** | 拢12,500 |
*This corresponds to the GGSS Overall Scheme Expenditure Budget, published on the GGSS: Budget Management page.
**Note that Ofgem鈥檚 administration costs for carrying out the mutualisation process is the same value as the mutualisation threshold.
Mutualisation threshold
The mutualisation threshold is any levy shortfall above 拢12,500.