Photovoltaic Power Websites
Energy 3.0 : the webmagazine about energy efficiency.
electrical efficiency : the webmagazine about energy efficiency
3,825,564 
$ 240.00
Green Home Building: Index
Greenhomebuilding.com focuses on sustainable architecture, natural building, solar energy, ecology, water and forest conservation, recycling, greenhouses, adobe, cob, strawbale, cordwood, papercrete, earthbag and vernacular architecture, with related resources of books, videos and links.
621,850 $ 1,200.00
Photovoltaic and thermal software : solar energy calculator, best PV software, solar hot water heating
Presentation of solar photovoltaic softwares, tools and calculators to simulate and compute the solar energy and power of solar photovoltaic or thermal system, PV panels or PV modules, solar collectors
838,310 $ 960.00