Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, how much from the public purse has been spent on nuclear fusion research since 2010.

The Department for Business, Energy and Industrial Strategy and its predecessor departments funded approximately £800m in nuclear fusion research through the United Kingdom Atomic Energy Authority between 2009/10 and 2021/22. Final spend figures for 2022/23 will be published through audited accounts in due course. This excludes UK funding towards nuclear fusion research through Euratom R&T, the EU fusion programme, which was funded through the UK’s total contribution to the EU.