On April 26, the Tucson Solar Potluck will be held in the desert north of Tucson. It is the 32nd straight year for the gathering of solar enthusiasts, a streak that some believe qualifies it as the longest continuously held solar event in the U.S.
Mexico - National Association of Solar Energy
United Kingdom - UK Solar Energy Society
Solar Energy International
SEI is a nonprofit educational organization to help others to use renewable energy resources and sustainable building technologies through education and technical assistance.