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) March 29, 2002 -------------- Registrant, State of Incorporation, Commission File Address of Principal Executive I.R.S. Employer Number Offices and Telephone 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 None - ------------------------------------------------------------------------------- (Former name, former address and former fiscal year, if changed since last report) Item 5. Other Events - --------------------- On April 1, 2002, Nevada Power Company issued a press release regarding the decision of the Public Utilities Commission of Nevada to allow Nevada Power to recover, over three years, $485 million out of the $922 million of deferred energy costs incurred by Nevada Power during the peak months of 2001. A copy of the press release, dated April 1, 2002, is attached as Exhibit 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 Nevada Power Company - Press Release issued April 1, 2002 2 Signatures Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrants have each duly caused this report to be signed on their behalf by the undersigned, thereunto duly authorized. Sierra Pacific Resources ------------------------ (Registrant) Date: April 1, 2002 By: /s/ Dennis D. Schiffel -------------------------- Dennis D. Schiffel Senior Vice President and Chief Financial Officer Nevada Power Company -------------------- (Registrant) Date: April 1, 2002 By: /s/ Dennis D. Schiffel ---------------------- Dennis D. Schiffel Senior Vice President and Chief Financial Officer 3 Exhibit Index ------------- Exhibit 99.1 Nevada Power Company - Press Release issued April 1, 2002. 4