Hydrogen-Powered Trains Have Arrived; Railways are using the gas to clean up diesel routes. As predictable customers, they can help bring down the costs of green hydrogen for other sectors.

Yet that isn’t the case for rail transport. Hydrogen-powered trains built by France’s Alstom have already carried passengers over 110,000 miles on trial operations in Europe. The total lifetime cost of ownership is already comparable for trains running on diesel, hydrogen fuel cells or electrified lines, according to a report by consulting firm Roland Berger.