Fuel cells that run on hydrogen are efficient and emit water vapor instead of exhaust. But so far, the technology is still expensive and therefore not competitive with the electric motor alternative.

Norwegian researchers have now figured out how they can accelerate competitiveness by reducing two critical components. This could make fuel cells both cheaper and more environmentally friendly.

The technology has great potential to cut greenhouse gas emissions in the transportation sectors, especially in heavy transport, the maritime sector and—in a somewhat longer timeframe—also in aviation.