Moving this topic out of an unrelated thread...
From jvs11560 | August 18, 2019
@NKYTA - Look up "Hydrogen House Project in Hopewell NJ" This guy makes hydrogen from free energy. Hydrogen can be made from wind, solar, hydro, or any other free source of generatin g electricityu. The fuel tanks can be made from Plant based natural resources and the fuel lines are a little different, The inner liner of which consists of a corrugated stainless-steel tube. This corrugated tube, which has special adapters at each end, is integrated into an elastomeric composite and serves as a permeation barrier and is pressure tested.
The advantages are 5 minite refueling, longer range, and no large batteries. The problem, as I see it, with EV's; are the batteries. You have to mine for the materials, they degrade, and they are more expensive. Once Hydrogen hits scale, it should be inexpensive. The electrolizers are cheap enough now, where homowners can produce their own, just like the guy in New Jersey.
TeslaTap.com | August 18, 2019
@jvs - Ok, I'm still an H skeptic, but your facts seem wrong:
Longer range. Nope - Every H car I've seen has less range than the Tesla S100 at 370 miles.
5-minute refueling - Questionable. At a $2M single-stall fueling station it may take 5 minutes but then takes an hour to repressurize to allow another car to fuel. If you come in right after another car, then your wait is 65 minutes. I also expect it take far longer to fuel than 5 minutes on a home system that doesn't have the 10K psi pressurization system like the $2M fueling stations. A model 3 can now get 100 miles of charging in 7 minutes at a V3 Supercharger. Not as fast, but not slow either.
No large batteries - True, but instead you have huge tanks and the fuel cell that combined take up more space than batteries in an EV like the Tesla. And still you need batteries because the fuel cell is so inefficient, it can't actually directly drive a motor.
While I don't consider mining or degradation a problem with EV/Batttiers, H cars also have significant batteries so if you consider these problem areas, they are for H cars too. H tanks also degrade and have a fixed lifetime of 15 years.
Lastly, I have no idea the cost of electrolyzers, the permits required and the space required for all this equipment. On top of that, to fuel any H car sold today, you need pressurization tanks and special compressors, all of which take power and make considerable noise. I can't imagine all this costing less than $100K to be done to appropriate safety codes. My guess is it may be impossible to get home insurance for this dangerous Rube Goldberg system too.
So you could spend $100K for home fueling, require a garage full of equipment that is prone to failure, forgo house insurance to fuel your H car that can only travel 150 miles round-trip from your home. Or you could plug in an EV to an existing outlet, and optionally use a solar roof to provide free fueling costs. And with the Supercharger network, travel just about anywhere in the US.
Sorry, I fail to see the advantage of an H car over EVs or ICE. Crazy costly, no long-distance travel, requires designing and building your own home fueling station, fueling costs are significantly higher than electricity in most (all?) areas. The cars are underpowered and highly subsided. No one makes H cars in volume, so your choices are very limited if you are even allowed to buy one in your area.