National Renewable Energy Laboratory
1617 Cole Blvd.
Golden, CO 80401-3393
USA
(303) 275-3000
http://www.nrel.gov/learning/re_passive_solar.html
The World
Commercial
Learning about passive solar energy. Step outside on a hot and sunny summer day, and you'll feel the power of solar heat and light. Today, many buildings are designed to take advantage of this natural resource through the use of passive solar heating and daylighting.