Solar Energy International is the largest alumni network and training program in the world dedicated to solar energy and renewable energy technologies. With over 85,000 students and alumni, SEI has provided hands-on workshops and online courses in renewable energy and sustainable building technologies since 1991.

Solar Energy International (SEI) empowers students, alumni, and partners to expand a diverse, inclusive, well-trained and educated solar electricity workforce. Their aim is to promote sustainable economic growth, mitigate climate change, and support energy independence.

IREC Accredited – NABCEP Recognized Training Provider – U.S. Department of Energy Solar Instructor Training Network / Trainer of Trainers – Largest Renewable Energy Education Alumni Network – Most NABCEP Certified Alumni.