The Solar Energy Industries Association (SEIA) is the national trade association of solar energy manufacturers, dealers, distributors, contractors, installers, architects, consultants, and marketers. The objective of the SEIA is to expand the use of solar technologies in the global marketplace. The website features information about SEIA's four focuses: 1) social awareness, 2) trade, tax, & environment, 3) finance & tax, and 4) solar policy.