Solar Energy International (SEI)
Services for Renewable EnergyColorado, United States201-500 Employees
Solar Energy International (SEI) is a Paonia, Colorado-based provider of services for renewable energy with 201-500 employees. The organization focuses on solar energy education, delivering industry-leading technical training and expertise to individuals, communities, and businesses worldwide, and holds NABCEP Recognized Training Provider status, IREC Accreditation, and licensure through the Colorado Department of Higher Education. SEI has formed partnerships to expand training access, including with Illumination Solar to enhance hands-on solar training across the United States and with Nextpower to broaden Empowerment Program scholarships. It maintains an active presence in the solar industry through conference participation, such as attendance at the NABCEP CE Conference in Reno, Nevada in March 2025. In January 2025 SEI announced a $500,000 grant from Invest in Our Future, a fiscally sponsored project of RF Catalytic Capital affiliated with The Rockefeller Foundation. SEI's leadership has received recognition, with co-founder Johnny Weiss awarded the NABCEP Walt Ratterman Award in March 2024.
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