Here is all the data you need along with your site plan, geological and topographic conditions.

http://www.gaisma.com/en/

written by pencilman \\ tags: gaisma sun cycle solar data

I am encouraged by the advances in technology regarding photovoltaic solar energy.

http://www.sciam.com/article.cfm?id=solar-power-lightens-up-with-thin-film-cells

written by pencilman \\ tags: photovoltaic solar energy