3 ms·
Most EVs go a lot further on the 50kwh * 0.85 = 42 kwh it would take to produce that. Most EVs with a battery that size would be doing 150ish miles or around 2
by jillesvangurp 3y ago
Most EVs go a lot further on the 50kwh * 0.85 = 42 kwh it would take to produce that. Most EVs with a battery that size would be doing 150ish miles or around 200km. That kind of shows the problem with hydrogen and transport. With an expensive and ideal hydrolyser (using the numbers in the article) you are still requiring twice the energy per km.
Of course things not being ideal, it's more like 4x with the 80kwh / kg hydrolyser this company advertises. Now we're talking 80*0.85 = 68 kwh. That's typical for a lot of mid range EVs (including Teslas) with a range of 250 miles or better; or about 400km. 4x the energy + all the additional cost. Sure it will only cost a 85 cents per 100 km. But you could be driving for 21 cents per 100 km.
- sbradford26 3y agoYou covered the most important detail that I think most people skip and that is that hydrogen is just a very inefficient battery if you are utilizing green hydrogen. With the intrinsic inefficiencies of generating green hydrogen and the of fuel cells you will always end up using 3-4x the amount of energy versus just charging an EV directly. That is even before you deal with transportation, storage, and pressurization of the hydrogen. Now cheap hydrogen can be useful for industrial processes and aerospace so seeing the cost come down is still very good.