> Due to the current efficiency of electrolysis, hydrogen could easily become less expensive than gas. I did the math and while it's possible, it's still not t

> Due to the current efficiency of electrolysis, hydrogen could easily become less expensive than gas. I did the math and while it's possible, it's still not the case today. Even worse - hydrogen is more expensive per mile driven. > There’s no reason to think hydrogen cars won’t be able to match them on price in the future. I'll give you one then: expensive parts in the form of platinum catalysts and generally higher complexity, since all hydrogen cars which don't rely on combustion of hydrogen are actually hydrogen-electric hybrids with a buffer battery - something necessary due to the low power density of fuel cells. > A gas stations failure mode is also a giant fireball But would be rarer if we had enough cases to compare. Petrol being a fluid doesn't combust as easily - its NFPA flammability rating is 3, while hydrogen's is 4. Sure, natural gas is also highly flammable, but has less than 40% of the energy density.