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 14, 2002 --------------- 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 August 14, 2002, Sierra Pacific Resources issued a press release reporting financial results for the quarter ended June 30, 2002. The press release, as corrected by a subsequently issued press release, is attached as Exhibit 99.1 hereto. Additionally, on August 14, 2002, senior management of Sierra Pacific Resources, Nevada Power Company and Sierra Pacific Power Company (the "Companies") discussed the Companies' 2002 second quarter financial results during a conference call and live webcast. A transcript of the conference call is attached as Exhibit 99.2 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 August 14, 2002. 99.2 - Transcript of August 14, 2002 Conference Call Discussing Financial Results for the Quarter Ended June 30, 2002. 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: August 14, 2002 By: /s/ Dennis D. Schiffel --------------------------------- Dennis D. Schiffel Senior Vice President and Chief Financial Officer NEVADA POWER COMPANY (Registrant) Date: August 14, 2002 By: /s/ Dennis D. Schiffel --------------------------------- Dennis D. Schiffel Senior Vice President and Chief Financial Officer SIERRA PACIFIC POWER COMPANY (Registrant) Date: August 14, 2002 By: /s/ Dennis D. Schiffel --------------------------------- Dennis D. Schiffel Senior Vice President and Chief Financial Officer EXHIBIT INDEX Exhibit 99.1 - Sierra Pacific Resources - Press Release issued August 14, 2002. Exhibit 99.2 - Transcript of August 14, 2002 Conference Call Discussing Financial Results for the Quarter Ended June 30, 2002.