I forgot to mention, the main cost is actually the solar cells / wind turbine required to power the house during the day + make enough energy to produce hydrogen. The amount of cells required, based on a 15 year depreciations and maintanence, you might as well just use natural gas for most of your energy production in your house (if it is available in the area). It just doesn't work.
Also for a in house solar panel the usual amount of excess of energy is negative, or you could say, there aren't such enough energy generated using a (pretty expensive) solar panel in a common house.
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I forgot to mention, the main cost is actually the solar cells / wind turbine required to power the house during the day + make enough energy to produce hydrogen. The amount of cells required, based on a 15 year depreciations and maintanence, you might as well just use natural gas for most of your energy production in your house (if it is available in the area). It just doesn't work.
Also for a in house solar panel the usual amount of excess of energy is negative, or you could say, there aren't such enough energy generated using a (pretty expensive) solar panel in a common house.