Maybe trains will use different power, but trains are still trains. https://www.independent.co.uk/news/...JyzICipwCb5gjno7FbBz0ZKCUtajUIiuXJ2V-pzDiMuyY
The challenges for US operation are you have to keep a huge tank of liquid hydrogen on the train and that the energy per pound is lower than that of diesel so you need more fuel to go the same distance, not as big a deal in Europe, a bigger deal in the US.
Huh, interesting concept. I was picturing a "Mr. Fusion" on the roof, like the Back to the Future DeLorean...