William Bronson wrote:I have wondered, would a heavily insulated windowless building equipped with PV solar ,an electric heat pump/AC and grow lights, make for a more effective winter growing space , even if it had NO batteries?
William, there is a much better way to insulate and at the same time does not sacrifice for transparency. That is to introduce water or better still liquid soap bubble foam into the greenhouse envelope. Check what I am doing which is cost effective in two ways: much cheaper to build and much cheaper to operate.
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