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South Wales Main Line: Electrification

Asked by Ruth JonesLabourDepartment for TransportTabled Answered 21 January 2026UIN 105821

The question

To ask the Secretary of State for Transport, what recent discussions she had with the Welsh Rail Board on the electrification of the Cardiff - Swansea section of the South Wales Mainline.

Answered by Keir Mather

The Rail Minister has regular discussions with the Wales Rail Board regarding their priorities for investment, including future electrification between Swansea and Cardiff. Our initial joint priorities involve improvements on the South Wales Mainline which will deliver more immediate passenger benefits, including increasing the frequency of services to the west of Cardiff. Following the Spending Review, we are funding these improvement works as part of the wider £445 million investment to enhance rail infrastructure across Wales — unlocking economic potential, improving connectivity, and supporting communities.

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