It's also the same with the "hidden costs" of N-power.

There are some interesting geo-thermal projects going on here in Maine, where we are tapping ground water to use as energy for space heating. The ground water is about 50 degrees F and apparently there's enough difference from our winter outdoor temperature for an efficient heat exchanger to make economic sense. In the summer, it works just as well for cooling the house.

Sure would be sad if such a decentralized system could be implemented all over the country.;-}