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Leading for more than 50 years Established in 1954, the American Solar Energy Society (ASES) is the nonprofit organization dedicated to increasing the use of solar energy, energy efficiency, and other sustainable technologies in the U.S. ASES leads national efforts to promote solar energy education, public outreach, and advocacy. ASES also publishes the award-winning SOLAR TODAY magazine, organizes and presents the ASES National Solar Conference, and leads the ASES National Solar Tour – the largest solar energy event in the world, as well as other powerful programs.