AVA Avista Corp

Avista Corp. (NYSE:AVA) will hold its quarterly conference call and Webcast to discuss first quarter 2007 results on Tuesday, April 24, 2007, at 10:30 a.m. Eastern Time (7:30 a.m. Pacific Time). A news release with first quarter 2007 earnings information will be issued at 7:05 a.m. Eastern Time (4:05 a.m. Pacific Time) on April 24, 2007. This call is being Webcast by Thomson/CCBN and can be accessed at Avista�s Web site at www.avistacorp.com, or you may listen to the call by dialing 800.901.5231 in the United States, Passcode 87029652. A replay of the call will be available through May 1, 2007. Call 888-286-8010, Passcode 11477288, to listen to the replay. The Webcast will be archived for one year on the Avista Corp. Website at www.avistacorp.com. The Webcast is also being distributed over Thomson/CCBN�s Investor Distribution Network to both institutional and individual investors. Individual investors can listen to the call through Thomson/CCBN�s individual investor center at www.fulldisclosure.com or by visiting any of the investor sites in Thomson/CCBN�s Individual Investor Network. Institutional investors can access the call via Thomson/CCBN�s password-protected event management site, StreetEvents (www.streetevents.com). Avista Corp. is an energy company involved in the generation, transmission and distribution of energy as well as other energy-related businesses. Avista Utilities is a regulated company operating division that provides service to 345,000 electric and 304,000 natural gas customers in three Western states. Avista�s non-regulated subsidiaries include Advantage IQ and Avista Energy. Avista Corp.�s stock is traded under the ticker symbol �AVA.� For more information about Avista, please visit www.avistacorp.com.