Avista Corporation generates and transmits electricity and distributes natural gas to residential, commercial, and industrial customers in the U.S. Avista Utilities is Avista's regulated business unit. The company's primary, non-utility subsidiary as Ecova, an energy and sustainability management company. Known as Washington Water Power Companyuntil 1911, the company was founded in 1889 and is headquartered in Spokane, WA.