Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, with reference to the findings of the recent study by Aurora Energy Research that 24GW of long-duration electricity storage will be needed by 2035 to reduce reliance on imported gas and support the Government’s commitment to deliver affordable, clean and secure electricity, if he will (a) publish the Government's response to the call for evidence into large-scale and long-duration electricity storage by the end of March 2022, (b) make it his policy to introduce support to facilitate the deployment of home-grown long-duration electricity storage technologies, specifically an adapted cap and floor mechanism and (c) give clear direction to Ofgem to progress work on the cap and floor mechanism, including a timeline for when it will be established.

The Government is reviewing the responses to the Call for Evidence on large-scale, long-duration electricity storage, alongside analysis. The Government commissioned on the role of this type of storage in the electricity system and is aiming to publish a response in due course.