Question to the Department for Energy Security & Net Zero:

To ask His Majesty's Government what assessment they have made of the impact on household energy bills of the £28 billion electricity and gas infrastructure investment approved by Ofgem over the next five years.

Ofgem, the regulator, sets funding and investment allowances for gas and electricity transmission and gas distribution networks through its price control process. As confirmed in their Final Determinations for RIIO-3, covering 2026-2031, there will be an estimated net increase in bills by 2031 of around £30 a year, or less than £3 per month, though these are costs expected to decline further over time. This investment is essential to maintain a safe, reliable network, that provides energy security, whilst we move to a cleaner, and ultimately more affordable, energy system.