Question to the HM Treasury:

To ask the Chancellor of the Exchequer, what assessment he has made of the potential effect of the Autumn Statement 2022 on large-scale, long-duration energy storage in the UK.

As set out in the British Energy Security Strategy, the government remains committed to encouraging all forms of flexibility with sufficient large-scale, long-duration electricity storage to balance the overall system.

As part of the Autumn Statement the government has published a technical note on the electricity generator levy. This sets out the government’s view of how the tax will operate, including the intention not to apply the levy to pumped storage hydroelectricity or battery storage.