Avista Corporation is an American energy company. Avista generates and transmits electricity and distributes natural gas to residential, commercial, and industrial customers. The company operates in two segments: Avista Utilities, which provides regulated utility services to customers in eastern Washington, northern Idaho, and parts of southern and eastern Oregon; and AEL&P, which provides regulated utility services to customers in Juneau, Alaska. Avista's headquarters are in Spokane, Washington.