robertjerl wrote:
I just read that the best solar panels are aprx 22% effective. If we can develope panels that are 2,3 or 4 times that and a simple, safe way to store power for night etc then I might consider solar. As it is with the shape of the roof of my house even the solar people told me I didn't have enough room to install a full array.
Sunlight provides about 1000 watts per square yard. According to my back of the envelope calculations, 22% translates to around 200 watts per square yard of collector. That is around a Kilowatt Hour per day per square yard of collector. That's not too bad. How many KWh do you use per day? Storing it for evening and night time use is the biggest problem.