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) August 11, 2003 Registrant, State of Incorporation, Address of Commission File Principal Executive Offices I.R.S. employer Number and Telephone Number Identification Number 1-08788 SIERRA PACIFIC RESOURCES 88-0198358 P.O. Box 10100 (6100 Neil Road) Reno, Nevada 89520-0400 (89511) (775) 834-4011 2-28348 NEVADA POWER COMPANY 88-0420104 6226 West Sahara Avenue Las Vegas, Nevada 89146 (702) 367-5000 0-00508 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 August 11, 2003, Sierra Pacific Resources ("SPR"), the parent corporation of Nevada Power Company and Sierra Pacific Power Company, held a special meeting of its shareholders at which it received shareholder approval to issue up to 42,736,920 additional shares of SPR's common stock in lieu of the cash payment component of the conversion price of SPR's 7.25% Convertible Notes due 2010 (the "Notes"). SPR issued the Notes on February 14, 2003. The holders of the Notes are entitled to receive, for each $1,000 principal amount of Notes surrendered for conversion, (i) 76.7073 shares of SPR's common stock, and (ii) an amount of cash equal to the market value of 142.4564 shares of SPR's common stock at the time of conversion (the "cash payment component"), based on the average closing price of SPR's common stock over five consecutive trading days. As a result of receiving shareholder approval, SPR has the option of issuing shares of its common stock in lieu of the cash payment component of the conversion price of the Notes. SPR issued a press release announcing the results of the special shareholder vote. A copy of the press release, dated August 11, 2003, 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) Exhibit. 99.1 Sierra Pacific Resources - Press Release issued August 11, 2003 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: August 12, 2003 By: /s/ Richard K. Atkinson --------------- --------------------------------- Richard K. Atkinson Vice President and Chief Financial Officer NEVADA POWER COMPANY (Registrant) Date: August 12, 2003 By: /s/ Richard K. Atkinson --------------- --------------------------------- Richard K. Atkinson Vice President and Chief Financial Officer SIERRA PACIFIC POWER COMPANY (Registrant) Date: August 12, 2003 By: /s/ Richard K. Atkinson --------------- --------------------------------- Richard K. Atkinson Vice President and Chief Financial Officer EXHIBIT INDEX Exhibit 99.1 Sierra Pacific Resources- Press Release issued August 11, 2003.