I completed a solar site survey today on my roof in the two most promising spots - to the left of our skylight (see green dot in house view) and to the right of our skylight near the two sewar vents. The spot I like the most is to the left of our skylight (green dot on house top view), but it could be mighty ugly to have 8' panels tilted up here at 49 degrees from the front of the house.
Annual `solar access' according to the reports is 99%, which isn't a huge surprise, but woOO(!) nonetheless.
The big yellow band is where the Sun is in the sky at different times of the year. Yeah, I know it's hard to read b/c blogger.com scale's it down a bit. But anyway, on the left, 06:00 is sunrise and 18:00 is sunset near the summer solstice path. In the fish-eye image, there is only a little shading in the late afternoon. You can see that in the yellow highlighted band where the green-ish images appear near the horizon. You can see how the chimney is the biggest `threat' to my solar resource just beneath the blue December solar path line.
The Solmetric exports an HTML report that gives tons more info that just these images. Providing this report to the State is one of the requirements of getting the California Solar Initiative (CSI) rebate. One less thing to do!
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