Written question asked by Callum Anderson (Labour) on Friday, 28 August 2026, in the House of Commons. It was due for an answer on Wednesday, 2 September 2026. It was answered by Michael Shanks (Labour) on Monday, 7 September 2026 on behalf of the Department for Energy Security and Net Zero.

Energy: Storage

Question: To ask the Secretary of State for Energy Security and Net Zero, what steps she is taking to ensure that technologies supported through the Ultra-Long Duration Energy Storage Challenge can progress from research and development to commercial deployment at scale in the UK.

Answer: The Ultra-Long Duration Energy Storage (ULDES) Challenge is part of the Government's Research and Development Mission Accelerator Programme (R&D MAP). A key element of the Programme is a focus not only on technology development, but also on the wider policy, regulatory, market and commercial conditions needed for successful deployment. DESNZ is working closely with UK Research and Innovation, regulators and industry to identify how they can work together to ensure that technologies emerging from the Programme can achieve real-world deployment and impact.

Secondary information