Next stop, hydrogen-powered trains
BBCNext stop, hydrogen-powered trains University of Birmingham The hydrogen-powered train Hydroflex is soon to have its first outing on the UK mainline track As old diesel trains are phased out of rail networks around the world, the UK is about to test a new type of engine that could help to decarbonise railways – hydrogen-powered trains. Engineers who developed the new train, from the University of Birmingham and British rail company Porterbrook, wanted passengers to sit alongside the train’s hydrogen fuel cells. The Hydroflex’s hydrogen tanks, fuel cell and batteries currently sit inside a passenger car, but the ultimate plan is to store them underneath the train in order to fit in more passengers. These space constraints are one reason that Porterbrook chose to retrofit older train models with the hydrogen fuel power system, rather than construct entirely new vehicles like the Alstom did in Germany – the existing trains were already made to measure for the tunnels they had to pass through.