Once considered a niche environmental play as the automotive industry focused on battery-electric and fuel cell vehicles, hydrogen internal combustion engines have gained renewed attention as a green vehicle technology.
A pending European Union regulatory change would classify heavy-duty trucks using the engines — which burn hydrogen to push pistons — as zero-emission vehicles. That could spark an echo in pickups and smaller vehicles in other markets.
"It was a light-switch moment," said Jim Nebergall, general manager of Cummins Inc.'s hydrogen engine business.
EU regulators have proposed changing their zero-emission definition to ensure that buses and heavy-duty trucks equipped with hydrogen internal combustion engines qualify. They said such vehicles should be included because hydrogen is a fuel with no carbon content. The proposal is passing through the legislative procedure in the European Parliament and Council of the European Union. The vehicles w…