The WGA includes several large provisions which change substantially from year to year. For example, the provision for future decommissioning of nuclear facilities has decreased by £126.2 billion from £273.1 billion in 2021–22 to £146.9 billion in 2022–23, with the discount rate decreasing the provision by £131.8 billion.53 We subsequently discovered that the forecast cost to the taxpayer of nuclear decommissioning had actually increased by £11.7 billion in the year 2022–23 , despite the impression given by the figure in the accounts that it had reduced substantially.54 The cost also increased by a further £10.3 billion in 2023–24.55