chupo99 t1_iv7epmu wrote
Reply to comment by soks86 in Researchers designed a transparent window coating that could lower the temperature inside buildings, without expending a single watt of energy. This cooler may lead to an annual energy saving of up to 86.3 MJ/m² or 24 kWh/m² in hot climates by mossadnik
In laymen terms: We already use AC(which requires energy and creates additional heat) to pump the heat back outside anyway so it's more efficient to have a glass that doesn't let the heat in to begin with.
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