SPOKANE, Wash., Jan 20, 2010 /PRNewswire via COMTEX/ -- Avista Corp. (NYSE: AVA) will hold its quarterly conference call and webcast to discuss fourth quarter 2009 results on Thursday, Feb. 18, 2010, at 10:30 a.m. Eastern Time. A news release with fourth quarter 2009 earnings information will be issued at 7:05 a.m. Eastern Time on Feb. 18, 2010.

This call can be accessed at Avista's Web site at www.avistacorp.com, or you may listen to the call by dialing (866) 788.0544 in the United States, Pass code 22686109.

A replay of the call will be available through Feb. 25, 2010. Call (888) 286.8010, Pass code 65134651 to listen to the replay. The webcast will be archived for one year on the Avista Corp. Web site at www.avistacorp.com.

Avista Corp. is an energy company involved in the production, transmission and distribution of energy as well as other energy-related businesses. Avista Utilities is our operating division that provides electric service to 355,000 homes and businesses and natural gas to 312,000 homes and businesses in three Western states, serving more than 492,000 customers. Avista's primary, non-regulated subsidiary is Advantage IQ. Our stock is traded under the ticker symbol "AVA." For more information about Avista, please visit www.avistacorp.com.

Avista Corp. and the Avista Corp. logo are trademarks of Avista Corporation.

    Contact:
    Media:        Avista 24/7 Media Access (509) 495.4174
                  Jessie Wuerst (509) 495.8578, jessie.wuerst@avistacorp.com
    Investors:    Jason Lang (509) 495.2930, jason.lang@avistacorp.com

SOURCE Avista Corp.