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Does anyone have any good numbers on the efficiency of hydrogen fuel cells vs batteries? Naively, I would expect that it would be lighter to "store" electricity
by dahfizz 5y ago
Does anyone have any good numbers on the efficiency of hydrogen fuel cells vs batteries? Naively, I would expect that it would be lighter to "store" electricity by electrolysizing water and storing the hydrogen, then running the hydrogen through a fuel cell.
- zejn 5y agoTransport & Environment have done some studies - https://insideevs.com/news/332584/efficiency-compared-battery-electric-73-hydrogen-22-ice-13/ https://insideevs.com/news/332584/efficiency-compared-batter... Turns out battery charging and inverting has lower losses than electrolysis and compression.