Free .... but for how long???
My brother in PA uses groundwater from two drilled wells to help reduce energy costs at his house ..... works well and has paid for itself.
Exploiting the thermal mass of the lake is a fantastic savings opportunity; but if every waterfront home did this, the lake would become a swamp in twenty years. It is an intriguing concept; but surely has its long term problems.
Now, if someone could could find a way to exploit milfoil weed to pay property taxes; we'd really have something!
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