UK’s first rapid-charging train powers into service

The UK’s first rapid-charging electric train has gone into service in west London.

The all-electric passenger service has replaced a diesel train on a two-and-a-half-mile stretch of line in Ealing after successful trials in 2025.

The train has been converted from a London Underground District Line train and rather than being constantly powered via a third rail, is driven entirely by batteries. The batteries are topped up during a four-minute turnaround at West Ealing Station using a 2,000kW charging connected to a dedicated section of rail that only becomes live once the train is stopped above it.

GWR started running trials of the battery-powered train last July and in August it set a new world record for the longest distance travelled by a battery train on one charge – managing 200.5 miles.

Initially the train will only run on Saturdays, starting with the 5:30am departure from West Ealing to Greenford. However, GWR said it hoped to increase the train’s use throughout the year.

GWR engineering director Dr Simon Green, said: “This is a significant moment for all those involved in this innovative project and comes at a crucial time as we focus on plans to replace our ageing diesel fleet.

“Our fast-charge trial has successfully demonstrated that battery technology offers a reliable and efficient alternative to power electric trains, in cases where overhead lines aren’t possible or desirable.

“Delivering the train into passenger service will enable us to gain further insight which can be fed into our own decarbonisation plans, as well as those of the wider rail industry.”

The rail industry aims to phase out diesel-only trains by 2040, and the launch of the UK’s first rapid-charging train is seen as a milestone towards that, providing new options for operators trying to decarbonise.

Network Rail’s Western route director, Marcus Jones, added: “We’re delighted to see this record breaking battery train move into passenger service, representing a major step forward for sustainable rail travel in Britain.

“Rail is already the greenest form of public transport, and battery powered trains will play a crucial role in our commitment to a low emission railway and ambition to reach net zero by 2050. We’re proud to have worked closely with GWR on this innovative project and we look forward to supporting the next phase as the technology is introduced into regular operation.”