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I'm not convinced that hydrogen is ever better than a battery. Your hydrogen tank is going to be bigger, heavier, and less practical (It's basically a bomb) th
by Sohcahtoa82 1y ago
I'm not convinced that hydrogen is ever better than a battery.
Your hydrogen tank is going to be bigger, heavier, and less practical (It's basically a bomb) than a battery that gives the same amount of energy. Producing the hydrogen requires significant power, so it's not even better for the environment unless your energy comes from a clean source.
I suppose there's the benefit that you can refill it quickly just like with gasoline, but you'd have to build out an entire new distribution system. At least with batteries, you just have to connect to the existing power grid.
- cosmicgadget 1y agoThe longevity discussion isn't straightforward but worth considering.
- taylodl 1y agoThe total system weight for hydrogen (tank + hydrogen) for a class 8 truck capable of a range of 500 miles is 16% of the weight that an EV battery pack would be that delivers the same range - even though the EV is considerably more efficient. That decrease in weight is extra payload that can be delivered. Because this application is limited to commercial traffic, we don't need to worry about an expansive hydrogen distribution network like we would have to do with non-commercial vehicles. Also, Toyota's hydrogen pumps are designed to fill at the rate of diesel - so the trucks can be easily refilled. The bottom line is I don't think this is an either/or decision. I think there are some applications for which hydrogen makes more sense, and there are some applications for which EV makes more sense.
- hulitu 1y ago> I'm not convinced that hydrogen is ever better than a battery. You don't have to carry 2 tons with you everytime.