Mark A. Ruelle, president of Nevada Power and acting chief financial officer of Sierra Pacific Resources (NYSE: SRP), and other company executives will discuss April 2001 financial results for Nevada Power Company and Sierra Pacific Power Company, the effects of Nevada Assembly Bill 369 and other energy related legislation during a live webcast on Thursday, June 7, at 7 a.m. Pacific Daylight Time. Interested parties can access the webcast using this link: www.sierrapacificresources.com/investors/news. Click on the StreetFusion icon to access the webcast.

A recording of the conference call will be available for one week on the Sierra Pacific Investor News website and StreetFusion at http://www.streetfusion.com/. For those who'd rather listen to the Instant Replay recording by telephone, please dial 800-759-4661.

Headquartered in Nevada, Sierra Pacific Resources is a holding company whose principal subsidiaries are Nevada Power Company, the electric utility for 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 and water distributor in the Reno-Sparks area. Other subsidiaries include the Tuscarora Gas Pipeline Company, which owns 50% interest in an interstate natural gas transmission partnership, and Sierra Pacific Communications, a telecommunications company.

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SOURCE: Sierra Pacific Resources

Contact: Analysts, Rich Atkinson, 775-834-5300 or Barbara Doble,
702-367-5604, or News Media, Karl Walquist, 775-834-3891, or Bob Sagan,
775-834-4834, all of Sierra Pacific Resources

Website: http://www.streetfusion.com/

Website: http://www.sierrapacificresources.com/investors/news

Website: http://www.sierrapacific.com/