There are many technical problems with hydrogen: metal embrittlement, it leaks even through solid substances, etc. They're not insurmountable, but they make hyd

There are many technical problems with hydrogen: metal embrittlement, it leaks even through solid substances, etc. They're not insurmountable, but they make hydrogen not that competitive with electric. Elon is not a fan of H2 for rockets either for those very same reasons-- embrittlement, leakage, cost of storage and handling. Guy is flat out anti-hydrogen, man. That and once you have hydrogen it's not that hard to go from there to CH4-- methane. Once you're there, natural gas fuel cells and vehicles make more sense as methane is infinitely easier to handle and already has a ton of deployed infrastructure. They're already doing this in Germany-- making CH4 from H2O and CO2 with surplus renewable energy and then feeding it into the natural gas grid.