To ask the Secretary of State for Energy Security and Net Zero, regarding the report entitled Seventh Carbon Budget by the Committee on Climate Change, published on 26 February 2025, whether his Department has made an estimate of the cumulative capital expenditure required for (a) transmission grid upgrades, (b) distribution grid upgrades and (c) household insulation measures to 2050.

The actual costs of delivering the Seventh Carbon Budget will be determined by the choices that government makes. The costs and funding scenarios set out in the CCC’s Seventh Carbon Budget report are illustrative and do not represent government policy and Government is not bound to accept their recommendations.

In 2022, the Government published the Electricity Networks Strategic Framework which included an estimate of cumulative 2021-2050 load-related total expenditure for net zero of £100-120bn for onshore transmission and £70-90bn for distribution network.

The Warm Homes Plan will help people find ways to save money on energy bills and transform our ageing building stock into comfortable, low-carbon homes that are fit for the future. We will upgrade up to 5 million homes across the country by accelerating the installation of efficient new technologies like heat pumps, solar, batteries and insulation.