SPOKANE, Wash., Jun 26, 2006 (BUSINESS WIRE) -- Avista Corp. (NYSE: AVA) will hold its quarterly conference call and webcast to discuss second quarter 2006 results on Wednesday, Aug. 2, 2006, at 10:30 a.m. EDT (7:30 a.m. PDT). A news release with second quarter 2006 earnings information will be issued at 7:05 a.m. EDT (4:05 a.m. PDT) on Aug. 2, 2006.

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 866-825-1709 in the United States, Passcode 44704720.

A replay of the call will be available beginning 12:30 p.m. EDT (9:30 a.m. PDT) on Aug. 2, 2006 until Aug. 9, 2006, by calling 888-286-8010, Passcode 44199070. 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 338,000 electric and 297,000 natural gas customers in three western states. Avista's non-regulated subsidiaries include Avista Advantage and Avista Energy. Avista Corp.'s stock is traded under the ticker symbol "AVA." For more information about Avista, please visit www.avistacorp.com.

SOURCE: Avista Corp.

Avista Corp.
Jessie Wuerst, 509-495-8578
jessie.wuerst@avistacorp.com