Renewable Energy: Solar Energy

This nonprofit organization is on a mission to increase the use of solar energy, energy efficiency and other sustainable technologies in the United States. Can you guess when it was founded? Try 1954. They are serious, they are knowledgable, and they are organized. From the site: ASES programs will help you: learn about renewable energy, reduce your energy costs, get involved, get started with solar, get answers, and stay informed."

Estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world. It allows homeowners, small building owners, installers and manufacturers to easily develop estimates of the performance of potential PV installations.