NinerBikes wrote:
What data base are you using on that map, from what geographical area?
The live data appears to be from one of the various solar radiation monitoring stations. On his first link is a map of the US with the various "sun hours". Somewhere (might be on that website) on the internetz I found where you can enter a zip code and it would give you the nearest town that you could use to figure how many sun hours per day you would get in a given month. Where I live it's 5.7 sun hours in the summer. You can take the output of your panels and multiply it by the amount of sun hours to get a good gesstimate of your daily amp hour haul minus the solar irradiance (some people have solar meters to measure that).
