
house, although not much. By using solar panel roof, passive energy, an 
in-ground heat pump, decent design, net energy consumption used by 
fossil fuels is zero. Zero.
  It is a comfortable home. I have seen it. It would not stand out in 
any neighborhood, a place to be proud of, and has zero energy 
consumption. And the secret is they have net metering. When the sun is 
shining, and even through clouds it works, certain levels of clouds. It 
feeds electricity back into the grid and their meter runs backw