Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, what assessment his Department has made of the potential impact of introducing zonal electricity pricing on (a) consumer energy bills in regions with high renewable generation, such as those with significant offshore wind capacity, (b) the cost to the public purse of constraint payments to wind generators and (c) future private-sector investment in energy infrastructure in areas of high demand, including the South East.

In July 2025, we announced that we would not be implementing zonal pricing as part of the Review of Electricity Market Arrangements (REMA) and had decided instead to retain a single Great Britain wide wholesale electricity market. We plan to set out the potential impact of zonal pricing − with respect to areas such as consumers, generators and investment, including South East England – in the REMA Cost Benefit Analysis (CBA), which will be published later this year.