You could probably "mine" Winnipesaukee's temperature differences, but
should have to pay for deep-well injection of the exchanged water—a very costly remedy to recoup any savings.
In certain Florida counties, deep-well injection of "Energy-used" water is prohibited: Those counties require that well water drawn for air conditioning be discharged directly onto the ground: Not such a good option among NH's lakefront slopes and new ridge-developments.
Though I located a large aluminum radiator, fan, hose, and small pump for some low-tech lakewater A/C here, I was pleasantly surprised at how efficient a single $85 "window-shaker" A/C was at cooling my uninsulated camp. My acre of
pine-forest shade undoubtedly helps.
Yesterday, though, I threw a chair into the lake to cool off for an hour—after dragging my feet behind my Sunfish sailboat for an hour!
While I applaud new energy initiatives, Lake Winnipesaukee—large as it is—isn't inexhaustable if "everybody" exploits it.
Anybody need a large aluminum radiator, fan, hose, and small water pump?
