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Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

How to avoid shadows on solar collectors and protect your solar investments; how to explore the solar energy potential of your site and optimize your solar project according to your local architecture conditions and regional climate characteristics.

Photovoltaic applications, technologies and large-scale PV power plants

Build It Solar will help people with Do It Yourself skills build solar projects that save money and reduce pollution. It is a "hands-on" site with detailed plans for solar projects including solar space heating, water heating, passive sola...

CivicSolar sells solar panels, solar inverters, charge controllers and others solar power products at the lowest wholesale price for grid tie, off grid,residential and commercial projects.

Siemens AG is a global powerhouse in electronics and electrical engineering, operating in the industry, energy and healthcare sectors.

YouTube is a place to discover, watch, upload and share videos.

SolarPro magazine is a high-quality, technical publication available by free subscription to qualifying solar industry professionals. Its editorial focus is on residential- and commercial-scale solar-electric and solar thermal system design and insta...