idea, could one sell power and energy storage legally into Texas (which is normally restricted) by making hydrogen on one side of a state border, and piping it in to the other side, on the Texas border (perhaps to a windfarm) one might stand to earn a lot and provide grid support
potentially yes, we achieved 50%+ rt efficiency for compressed air and maybe 60-70% is feasible, but hydrogen can be piped with polyethylene liners limiting permeability. arguably you want days of storage
