Plugging into the Sun: Solar Energy for the Future

Photovoltaics may be the ultimate energy source for the twenty-first century.

The roof of this Massachusetts house is composed of 480 Sunslates that generate almost 7,700 kilowatt hours annually. Electrical installation: Solar Works, Wilton, New Hampshire; roof and flashing: Copper and Slate, Waltham, Massachusetts.
Photo Courtsey Atlantis Energy Systems