Plowboy Interview: Harold R. Hay Talks About Solar Energy

Hay shares his thoughts on solar energy, passive cooling, movable insulation and much more in this Plowboy Interview.



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The Hay Sky-Therm house in Atascadero, California. Its innovative solar design includes rooftop insulating panels and bags of water used for passive cooling.
MOTHER EARTH NEWS STAFF
hay
Harold R. Hay, solar energy pioneer.
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