THE first tri-mode electric trains in the UK will debut on the South Wales Metro on Monday (Nov 18), marking a significant milestone in modernising the region’s rail network. Designed to run on electric, battery, and diesel power, the new trains will initially serve the Merthyr, Aberdare, and Rhymney Lines into Cardiff.
This development comes as electrification of the Core Valley Lines progresses. Transport for Wales (TfW) plans to operate 14 of the new class 756 FLIRT trains by next spring. While most services will feature the tri-mode trains, a smaller number of older diesel trains will still be in use temporarily.
Built by Swiss train-maker Stadler, the tri-mode trains are part of an £800 million investment by TfW to enhance the Wales & Borders network. Over the past two years, TfW has introduced 65 brand-new trains and seven premier class MK4 trains.
Ken Skates, Cabinet Secretary for Transport and North Wales, hailed the launch as a “historic moment,” stating:
“These state-of-the-art electric trains, with greater capacity and the latest technology, will make journeys more comfortable. Features like Wi-Fi and real-time travel information will encourage more people to use the train for their travel needs.”
James Price, Chief Executive of Transport for Wales, called the introduction a “huge moment,” adding:
“Our teams and partners have worked tirelessly on transforming South Wales’ rail infrastructure over the last three years. This is the next phase of the South Wales Metro.”
Initially, the tri-mode trains will operate predominantly in electric mode on the Core Valley Lines. Starting next year, once new tram-trains are introduced, the tri-modes will extend to routes such as Rhymney to Barry Island and Bridgend, and Coryton to Penarth. Existing bi-mode trains will be reassigned to other routes, including services to Maesteg and Ebbw Vale.
These tri-mode trains are also designed to switch seamlessly between power sources, allowing them to navigate sections of track without live electric wires, such as tunnels.
The trains promise a modern and comfortable experience for passengers, featuring greater capacity, Wi-Fi connectivity, and advanced travel information screens. The Welsh Government anticipates the upgrades will play a pivotal role in encouraging sustainable travel across the region.
