Solar Power International (SPI) is a large solar conference and expo. In 2010, the event attracted 23,300 industry professionals. The number of exhibitors topped 1,100. The 2011 event will take place from 17 to 20 October 2011 at Dallas Convention Center. The Conference and expo cover the topics photovoltaics, concentrating solar power, solar hot water, solar heating and cooling and solar pool heating.
SPI was created in 2004 when the Solar Electric Power Association (SEPA) and the Solar Energy Industries Association (SEIA) joined together to create the biggest business-to-business solar conference and expo in North America.