Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, whether underspend from the first year of the Boiler Upgrade Scheme will be returned to the Treasury.

The Boiler Upgrade Scheme (BUS) budget is £450 million, split equally over three financial years (2022-2025). The Government explored options to carry over unused budget from year 1 of the scheme, but due to the accounting rules for capital spending, the Government does not expect this to be possible and the underspend will be returned to HM Treasury.