And, turbines and fuel cells are also at ~40-60%. So, round-trip is a fair bit lower than that, as little as 25%. But it doesn't matter much. Efficiency is impr

And, turbines and fuel cells are also at ~40-60%. So, round-trip is a fair bit lower than that, as little as 25%. But it doesn't matter much. Efficiency is improving, and will be much better before anything depends on it. What do you imagine is the raw efficiency of making hydrogen from. NG, vs the enthalpy of the input gas? BTW, "electrolysers". Hydrolysis is a thing plants do.