Why Join COSSA
COSSA Membership Advantages
Established in 1989, the Colorado Solar Energy Industries Association (COSEIA) is the award-winning nonprofit that’s leading Colorado’s solar industry. If solar is your business (or in your future) then becoming a COSEIA member is one of the smartest moves you can make. Your membership strengthens efforts to expand markets, advance policy, remove barriers — and boosts visibility for your business as a solar leader.