Next I check our new electricity generators. Our small wind turbines spin silently in the breeze, night and day. Most days a steady trickle of electricity flows from the photovoltaic cladding on our sun facing surfaces.  Our little gas-fired turbine kicks in at times of peak electricity demand and heats our hot water at the same time.  Our hydrogen fuel cell stores excess for later use here or on the grid.

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Chapter Seven - The House of Life -Home of Bonus Joules.        

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