Sierra Pacific Resources
Contact: Media Contact: Faye I. Andersen 775-834-4822
Analyst Contact: Vicki Erickson 775-834-5646
Phone: please see above

For Immediate Release

Las Vegas, Nev.Â- Senior management with Sierra Pacific Resources (NYSE: SRP) will discuss the company's second quarter financial results during a live webcast on Wednesday, Aug. 14, 7 a.m. Pacific Standard Time. Interested parties can access the webcast with the following link:http://www.on24.com/clients/default/audioevent. html?eventid=759

The webcast will also be accessible on the Sierra Pacific Resources Investors News page located athttp://www.sierrapacificresources.com/investors/news/

A recording of the webcast will be available for two weeks on the Sierra Pacific Resources Investor News website and on On24's website,www.on24.com. Those who'd rather listen to the recording by telephone, should call 1-888-211-2648. Use conference ID number 2174001 to access the recording.

Headquartered in Nevada, Sierra Pacific Resources is a holding company whose principal subsidiaries are Nevada Power Company, the electric utility for most of southern Nevada, and Sierra Pacific Power Company, the electric utility for most of northern Nevada and the Lake Tahoe area of California and a natural gas distributor in the Reno- Sparks area of northern Nevada; and the Tuscarora Gas Pipeline Company, which owns 50 percent interest in an interstate natural gas transmission partnership and several unregulated energy services companies.