Potential solar customers may be interested in the following websites:  

Better Business Bureau
Read Better Business Bureau expert advice on buying, selling and being an all around savvy consumer.

Florida Solar Energy Center
Information on the renewable energy and energy efficiency research, education, training, and certification activities of the Florida Solar Energy Center (FSEC).

North American Board of Certified Energy Practitioners (NABCEP)
The NABCEP is the most respected, well-established, and widely recognized certification organization for North American solar professionals in the field of renewable energy.

Solar Electric Power Association (SEPA)
The Solar Electric Power Association (SEPA) is an educational non-profit dedicated to helping utilities integrate solar power into their energy portfolios for the benefit of the utility, its customers and the public good.

Solar Energy Industries Association
As the national trade association in the U.S., the Solar Energy Industries Association (SEIA) is the power behind solar energy. Our member companies research, manufacture, distribute, finance, and build solar projects domestically and abroad.

Solar Rating & Certification Corporation
The SRCC™ is a non-profit organization whose primary purpose is to provide authoritative performance ratings, certifications and standards for solar thermal products, with the intention of protecting and providing guidance to consumers, incentive providers, government, and the industry.