Automakers seem to agree that more zero-emission vehicles are needed to meet government regulations, and in turn combat climate change. But whether those cars should be powered by batteries or hydrogen fuel cells is still a hotly-debated topic. Adding fuel to the fire: a new study from European environment group Transport & Environment makes a strong argument for battery-electric cars.
T&E compared the overall energy efficiency of battery-electric cars, fuel-cell cars, and conventional internal-combustion models, and battery-powered cars came out on top. The study accounted for the entire "well to wheels" impact of each energy source—from production to transportation to energy losses involved in turning gasoline, hydrogen, and electricity into motion.
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