But this is totally solvable – we move the transportation sector to electric, and the power sector to nuclear, solar, wind and other renewables, and we’re good. Hydrogen technology may get there, but by then we will have battery infrastructure and everyone will be happy with their electric cars, so there will be little incentive for massive investment in a hydrogen infrastructure. If a hydrogen infrastructure is going to be of any significant use getting to minimal carbon, we have to make essentially all our hydrogen from water. So even if we never drive a hydrogen car (or it remains a niche market), there may be a critical role for a hydrogen infrastructure in heavy industry. Free of the need for storage to be light, small, and stable in a crash, hydrogen may have a future in our energy infrastructure yet.