Question to the Department for Transport:

To ask the Secretary of State for Transport, pursuant to the Answer of 28 May 2025 to Question 53618, if she will make an estimate of potential cost savings from introducing a rolling programme of electrification.

The department has not made an estimate of the potential savings of a rolling programme of electrification; however, we recognise the potential benefits such a programme could have for reducing the cost of delivering electrification infrastructure in this country. Officials are working closely with Network Rail to deliver updated plans for where and when electrification is required to deliver a fully decarbonised railway over the next 25 years that considers both track and train and the significant recent progress in battery technology and will consider potential cost savings as part of this process.