Solar Power International
Solar Power International is a solar power conference created in 2004, for show-casing new technology, when the Solar Electric Power Association (SEPA) and the Solar Energy Industries Association (SEIA) merged to organize an annual event bringing together companies and professionals from the solar industry. In 2008 it was touted as the largest solar power conference in North America.
Source: Wikipedia — Solar Power International (CC BY-SA 4.0)