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Fuel Cells: The Exhaust is Just Plain H₂O

nother exciting technology allows cars to run on electric power produced from fuel cells. These cells combine hydrogen and oxygen without burning or combustion to produce electricity. When pure hydrogen is used, the only emission is water vapor. When another fuel is used, there are some emissions, but substantially less than from most engines that burn fuel. Even fuel cell vehicles that are engineered to extract hydrogen from gasoline available at the corner station are ultra-clean. The fuel cell technology bridges the gap between Ultra- and Zero-Emission Vehicles.

Roll over the bus to see the schematic!

Next - Zero-Emission Vehicles