Indeed I agree with everything you said, although permit me to clarify one thing: "reuse much of their infrastructure" Despite the rosy predictions of the gas

Indeed I agree with everything you said, although permit me to clarify one thing: "reuse much of their infrastructure" Despite the rosy predictions of the gas companies, I doubt this is true in practice for most existing natural gas pipelines. https://climate.mit.edu/ask-mit/can-we-use-pipelines-and-power-plants-we-have-now-transport-and-burn-hydrogen-or-do-we-need https://climate.mit.edu/ask-mit/can-we-use-pipelines-and-pow... I used to do experiments with high-pressure hydrogen. It is a lot harder to get leak-free seals, and hydrogen is so small it can actually penetrate certain metals leading to embrittlement. The nice mercaptan we use so humans can sensitively detect leaks with their noses also won't be as effective any more (it's way too big.) I am not aware of a substitute. Mass-scale deployment of hydrogen is just not going to happen.