An excellent technical review ... or the errors are easy: 10:03 - the narrative says "twice as efficient" when the graph shows greater than "three times as efficient" Waiting on hydrogen "a miracle occurs here." Bob Wilson
Many good take-away's. Some quick favorites On the Up side for hydrogen; * if there are TONS of surplus energy (ok, it's uncommon most areas) it's a great storage medium * if weight is an issue, storage is lighter On Hydrogen down side; * ROI for the very best of the best hydrogen energy is, "energy-in" (used to distill) = net negative "energy-out" "left to use". * (not in OP's video?) Hydrogen embrittlement eventually destroys metal (as in fuel lines, fittings) Hydrogen embrittlement - Wikipedia (with pictures) * trillion $ infrastructure On the Up side for batteries; * Leverages existing grid infrastructure for much of the battery refueling * Less likely to require non-renewable for electricity generation * Higher probability of "volume" - means cost/tech gets less expensive On the Battery Down side; * Weight * Loss (example; home charge to 300 miles full, & over night, the range will decrease ~3 miles/1%) Video talks "2020" - Japan's Olympics - Hydrogen Economy. Ok, Japan believes their "can-do" optimism will make a hydrogen economy happen, by making hydrogen practical. If History teaches us anything, it teaches that a can-do outlook + tons of time, money & resources will NOT necessarily bring about one's objective. This opinion, was brought to you by a child of a WWII Pacific-theater (95yr old, still kicking) Marine Vet. But still - we wish them well with the attempt at success. .
This makes me wonder... If hydrogen is such a great solution why has there been zero investment in using it for generating electricity? Seems a hydrogen electricity generating facility is way easier to do than a hydrogen car, yet no one has ever built one. Not even the military... Why is that?
We aren't turning Japanese? <rim shot> The UK has a demo project: Orkney Hydrogen | Surf 'n' Turf The Fully Charged team showed a dock that has a 75 kW, fuel cell power source for the diesel ferries: 7:22 - shows the hydrogen trailer that exports to the dock 11:11 - shows the hydrogen trailer behind a diesel cab? Bob Wilson ps. Where my late Dad served: Dad's unit was in Arizona preparing to go to the Pacific when the war ended.
Another up side to batteries is that you don't have to constantly deal with people (incorrectly) comparing your car to the Hindenburg.
260 mile tesla model 3 mid range rwd premium is 3686 lbs 310 mile tesla model 3 long range awd premium is 4072 lbs 312 mile toyota mirai fwd is 4078 lbs 366 mile honda clarity fwd is 4134 lbs It does not appear that battery weight is any longer a problem given the model 3. My guess is in 5 years, which is long before there are hydrogen stations to fuel cars accross the country, a clarity sized (for passengers and cargo, not outer dementions) could be built as either a fwd or rwd 400 mile range bev and come in under 4000 lbs. The awd model 3 already is lighter than the fwd mirai.
