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Comment #223245 by Sarmatae1
That'll help, but the sun is never in the right position. For a flat surface the amount of power falls off with the cosine of the angle of the sun to the straight ahead position. (Sunsets could be great at a particular time of year and if the atmosphere had been just been "rained clean" of pollutants.) The midday sun, which gives the highest energy density irradiation, sadly shines on the roof.....
Permalink Sat, 02 Aug 2008 03:39:00 UTC | #211752