Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Solar Energy Industries Association (SEIA) in the United States is the national trade association representing close to 500 companies in the U.S. solar energy industry. It represents solar energy manufacturers, dealers, distributors, contractors, installers, architects, consultants and marketers. Established in 1974, SEIA works to expand the use of solar technologies in the global marketplace. Along with the Solar Electric Power Association (SEPA) they are a co-sponsor of America''s largest solar event, in 2008 renamed as the Solar Power International 2008 Conference, held October 13-16 at the San Diego Convention Center. Since the conference''s beginning in 2004, it had been called the Solar Power Conference and Expo.