Solar and Alternative Energy Products Trade Associations

American Biogas Council

U.S. trade association for the full biogas/RNG value chain; drives federal/state policy, market growth, and best practices. Represents 400+ organizations and 6,000 professionals.

https://americanbiogascouncil.org Membership: 400

American Clean Power Association

Multi-technology U.S. trade association uniting wind, utility solar, storage, clean hydrogen, and transmission companies; 800+ member companies supported via advocacy, data, and events.

https://cleanpower.org Membership: 800

American Solar Energy Society

501(c)(3) nonprofit advancing 100% renewable energy through education, Solar Today magazine, the National Solar Conference, and a nationwide chapter network; reports 20,000+ members.

https://ases.org Membership: 20,000

Battery Council International

Trade group of battery manufacturers, recyclers, distributors, and suppliers spanning SLI, motive power, stationary storage and renewable integration; 130+ member companies.

https://batterycouncil.org Membership: 130

California Energy Storage Alliance

California- and West-focused storage advocacy coalition; 100+ members across the storage ecosystem advancing technology-neutral policies and markets.

https://storagealliance.org Membership: 100

California Solar & Storage Association

Largest state-based solar + storage trade association; 700+ member companies advocating for rooftop solar and storage in California through policy, codes, and market development.

https://calssa.org Membership: 700

Clean Energy Business Network

Small-business voice of the clean energy economy within BCSE; a network of 8,200+ business and community leaders providing policy engagement, market intel, and business development support.

https://www.cebn.org Membership: 8,200

Clean Energy Buyers Association

Buyer-led association helping large energy customers procure clean power; 420+ members including many Fortune 500 firms; focuses on markets, policy, and procurement solutions.

https://cebuyers.org Membership: 420

Coalition for Community Solar Access

National trade group for community solar developers and stakeholders; 125+ members working to open and scale state community‑solar markets and program design.

https://communitysolaraccess.org Membership: 125

Colorado Solar and Storage Association

Colorado’s solar and storage industry association; 290+ business members engaged in advocacy, regulatory proceedings, and market education across residential, C&I, community, and utility segments.

https://cossa.co Membership: 290

Florida Solar Energy Industries Association

Florida’s statewide trade association for solar and storage; 170+ member companies committed to ethical standards, market education, and state legislative and regulatory advocacy.

https://www.flaseia.org Membership: 170

Fuel Cell and Hydrogen Energy Association

U.S. industry association for fuel cells and hydrogen; represents 100+ organizations advancing technology commercialization, codes and standards, and supportive public policy.

https://www.fchea.org Membership: 100

Geothermal Rising

International association for geothermal professionals providing conferences, education, and advocacy; membership was 1,176 in 2017 (latest published figure).

https://www.geothermal.org Membership: 1,176

Georgia Solar Energy Industries Association

Statewide trade group representing 200+ solar companies; the voice of Georgia’s solar industry on policy, education, and market expansion.

https://www.gaseia.org Membership: 200

Illinois Solar Energy & Storage Association

Illinois statewide trade association promoting solar and storage; 500+ members (including 150+ businesses) supporting education, advocacy, and industry networking.

https://illinoissolar.org Membership: 500

Minnesota Solar Energy Industries Association

Minnesota’s 501(c)(6) trade association for solar and storage; represents 170+ businesses with focused policy advocacy and market development.

https://www.mnseia.org Membership: 170

National Hydropower Association

Trade association for U.S. waterpower (hydropower, pumped storage, and marine energy); more than 300 member organizations advancing policy, research, and operational excellence.

https://www.hydro.org Membership: 300

New York Solar Energy Industries Association

New York’s only statewide trade association dedicated solely to solar; 200+ members engaged in advocacy, policy working groups, research, and events.

https://www.nyseia.org Membership: 200

Smart Electric Power Alliance

Nonprofit association of utilities and industry partners accelerating the clean energy transition via collaboration, research, and programs; about 1,000 members.

https://sepapower.org Membership: 1,000

Solar Energy Industries Association

U.S. national trade association for the solar and solar+storage industries; 1,200 member companies supported through advocacy, market research, and industry development.

https://www.seia.org Membership: 1,200