SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported) April 27, 2001 -------------- Registrant, State of Incorporation, Address of Commission File Principal Executive Offices and Telephone I.R.S. employer Number Number Identification Number 1-8788 SIERRA PACIFIC RESOURCES 88-0198358 P.O. Box 10100 (6100 Neil Road) Reno, Nevada 89520-0400 (89511) (775) 834-4011 1-4698 NEVADA POWER COMPANY 88-0045330 6226 West Sahara Avenue Las Vegas, Nevada 89146 (702) 367-5000 0-508 SIERRA PACIFIC POWER COMPANY 88-0044418 P.O. Box 10100 (6100 Neil Road) Reno, Nevada 89520-0400 (89511) (775) 834-4011 None - -------------------------------------------------------------------------------- (Former name, former address and former fiscal year, if changed since last report) Item 5. Other Events - --------------------- On April 26, 2001, Sierra Pacific Resources (the parent corporation of Nevada Power Company and Sierra Pacific Power Company) issued a press release announcing that Sierra Pacific Resources and Enron Corp have mutually agreed to terminate their purchase and sale agreement for Enron's wholly owned electric utility subsidiary, Portland General Electric. A copy of the press release, dated April 26, 2001, is attached as Exhibits 99.1 hereto. Item 7. Financial Statements and Exhibits - ----------------------------------------- (a) Financial Statements of Businesses Acquired. ------------------------------------------- Not required (b) Pro forma financial information. ------------------------------- Not required (c) Exhibits. -------- 99.1 Sierra Pacific Resources- Press Release issued April 26, 2001 Signature Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Sierra Pacific Resources ------------------------ (Registrant) Date: April 27, 2001 By: /s/ Mark A. Ruelle -------------- ---------------------------------- Mark A. Ruelle Senior Vice President Treasurer Chief Financial Officer (Principal Financial Officer) Nevada Power Company -------------------- (Registrant) Date: April 27, 2001 By: /s/ Mark A. Ruelle -------------- ----------------------------------- Mark A. Ruelle Senior Vice President Treasurer Chief Financial Officer (Principal Financial Officer) Sierra Pacific Power Company ---------------------------- (Registrant) Date: April 27, 2001 By: /s/ Mark A. Ruelle -------------- ----------------------------------- Mark A. Ruelle Senior Vice President Treasurer Chief Financial Officer (Principal Financial Officer) Exhibit Index ------------- Exhibit 99.1 Sierra Pacific Resources- Press Release issued April 26, 2001.