Railway officials believe that Hydrogen could change Train design and reduce transport emissions, as testing and production ramps up particularly in North America. Hydrogen-powered locomotives can use fuel cells to produce electricity that’s stored in batteries and sent to each unit’s conventional traction motors.

A high-horsepower, AC-traction locomotive, is currently being converted to hydrogen power at the shop of Canadian Pacific’s partner, Bilton Welding and Manufacturing in Alberta, Canada.

"We’re creating an ecosystem of change,” said Kyle Mulligan, Canadian Pacific’s chief engineer of railway technology. “This project is the chance to change the industry entirely.”

https://www.trains.com/trn/news-reviews/news-wire/can-cpkcs-hydrogen-fuel-cell-locomotives-doom-the-diesel/