Storing hydrogen under water for home use?
System: wind energy -----> hydrogen ------> hydrogen under pressure(Hydrogen tanks are placed under water) ------> fuel cells
Would you buy it to make your home energetically sufficient?
Hydrogen is not dangerous if tanks are placed under water
Hydrogen is not dangerous under water - OK if you say so
but it won't stay there, the small molecules leak easily from any joint. All the water might do is keep the tank temperature constant. or if a flame should travel back down the pipes to the tank the water will contain the hydrogen until it explodes, rather than allowing it to escape relativly harmlessly
but the problem, and inefficiency, is producing the hydrogen from electric, pressurising it, and regulating flow without leaks,
Plus affordable fuel cells big enough for a domestic load are not yet available.
Have you calculated the size of tank required for non-windy days?
Hydrogen is not dangerous if it is not contained and can escape into the atmosphere. Even the Hindenberg did not explode, most of the burning material was the doped fabric envolope.
Large Li batteries are already available to provide electric for an energy efficient house without the inefficieny of producing hydrogen
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