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Hydrogen storage seem like a pretty mature field, https://en.m.wikipedia.org/wiki/Hydrogen_tank https://en.m.wikipedia.org/wiki/Hydrogen_tank We have dealt wit

Hydrogen storage seem like a pretty mature field, https://en.m.wikipedia.org/wiki/Hydrogen_tank https://en.m.wikipedia.org/wiki/Hydrogen_tank We have dealt with gasoline, which can leak and is just as dangerous, IMO just fine for decades - and gasoline vapor has a tendency to pool near the ground rather than float off and disperse high into the sky like hydrogen. Franky, it seems just about every energy storage system has pretty frightening failure modes - I take it you have seen the video of a Tesla fiercely burning up in a carpark in China.

dredmorbius 5y ago
Again: Petrol does not mollecularly diffuse through solid material and embrittle it in the process. How many hydrogen storage tanks and pipelines do you think exist today? How are they regulated? How much hydrogen is stored and transported via them annually? How does this compare with the number of petrol fuel tanks and pipelines, numbering in the many hundreds of millions for automobiles alone? And the volume of petrol stored and transported on an annual basis? Limited lab, hospital, aerospace, and industrial hydrogen usage is not the same as parking a hydrogen bomb in every residential garage, or assembling collections of them in apartment, commercial, or office-tower parking structures. EV's are irrelevant to this question, but I've got you covered: About 3 weeks ago: https://news.ycombinator.com/item?id=28547486 https://news.ycombinator.com/item?id=28547486 10 years ago: https://news.ycombinator.com/item?id=3284804 https://news.ycombinator.com/item?id=3284804 FWIW: I see hydrogen-derived synfuels as a potential / probable option going forward in some uses (marine, aviation, possibly rail), but reformulated into hydrocarbon equivalents of current fossil fuels, probably via something like the Fischer-Tropsch process. That's been uneconomic to date, though it's chemically feasible. https://old.reddit.com/r/dredmorbius/comments/28nqoz/electrical_fuel_synthesis_from_seawater_older/ https://old.reddit.com/r/dredmorbius/comments/28nqoz/electri... Alphabet explored this through "Project Foghorn". I'd argue that petroleum is priced far too low, rather than synfuels too high as they state.
- worrycue 5y ago
  > Again: Petrol does not mollecularly diffuse through solid material and embrittle it in the process. Don't use metal. If you do replace it periodically - let's not pretend batteries last forever either. A bit of leakage is acceptable. Did you know that natural gas that already in widespread use today leaks as well. https://www.sciencedirect.com/science/article/abs/pii/S0360319919347275 https://www.sciencedirect.com/science/article/abs/pii/S03603... Come to think of it, most of the problems we have with hydrogen we also have with natural gas - which we dealt with just fine; we even had natural gas powered cars, https://en.wikipedia.org/wiki/Natural_gas_vehicle https://en.wikipedia.org/wiki/Natural_gas_vehicle Hydrogen storage is an active field of research. https://en.wikipedia.org/wiki/Hydrogen_storage https://en.wikipedia.org/wiki/Hydrogen_storage I say we keep our options open. It's worth further exploring the use of hydrogen as a energy storage and transportation medium.

dredmorbius 5y ago

Again: Petrol does not mollecularly diffuse through solid material and embrittle it in the process. How many hydrogen storage tanks and pipelines do you think exist today? How are they regulated? How much hydrogen is stored and transported via them annually? How does this compare with the number of petrol fuel tanks and pipelines, numbering in the many hundreds of millions for automobiles alone? And the volume of petrol stored and transported on an annual basis? Limited lab, hospital, aerospace, and industrial hydrogen usage is not the same as parking a hydrogen bomb in every residential garage, or assembling collections of them in apartment, commercial, or office-tower parking structures. EV's are irrelevant to this question, but I've got you covered: About 3 weeks ago: https://news.ycombinator.com/item?id=28547486 https://news.ycombinator.com/item?id=28547486 10 years ago: https://news.ycombinator.com/item?id=3284804 https://news.ycombinator.com/item?id=3284804 FWIW: I see hydrogen-derived synfuels as a potential / probable option going forward in some uses (marine, aviation, possibly rail), but reformulated into hydrocarbon equivalents of current fossil fuels, probably via something like the Fischer-Tropsch process. That's been uneconomic to date, though it's chemically feasible. https://old.reddit.com/r/dredmorbius/comments/28nqoz/electrical_fuel_synthesis_from_seawater_older/ https://old.reddit.com/r/dredmorbius/comments/28nqoz/electri... Alphabet explored this through "Project Foghorn". I'd argue that petroleum is priced far too low, rather than synfuels too high as they state.

worrycue 5y ago
> Again: Petrol does not mollecularly diffuse through solid material and embrittle it in the process. Don't use metal. If you do replace it periodically - let's not pretend batteries last forever either. A bit of leakage is acceptable. Did you know that natural gas that already in widespread use today leaks as well. https://www.sciencedirect.com/science/article/abs/pii/S0360319919347275 https://www.sciencedirect.com/science/article/abs/pii/S03603... Come to think of it, most of the problems we have with hydrogen we also have with natural gas - which we dealt with just fine; we even had natural gas powered cars, https://en.wikipedia.org/wiki/Natural_gas_vehicle https://en.wikipedia.org/wiki/Natural_gas_vehicle Hydrogen storage is an active field of research. https://en.wikipedia.org/wiki/Hydrogen_storage https://en.wikipedia.org/wiki/Hydrogen_storage I say we keep our options open. It's worth further exploring the use of hydrogen as a energy storage and transportation medium.