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) February 11, 2008

Commission File Number	Registrant, State of Incorporation, Address of Principal Executive Offices and Telephone Number	I.R.S. Employer Identification Number
1-08788	SIERRA PACIFIC RESOURCES Nevada P.O. Box 30150 (6100 Neil Road) Reno, Nevada 89520-0400 (89511) (775) 834-4011	88-0198358
2-28348	NEVADA POWER COMPANY Nevada 6226 West Sahara Avenue Las Vegas, Nevada 89146 (702) 367-5000	88-0420104
0-00508	SIERRA PACIFIC POWER COMPANY Nevada P.O. Box 10100 (6100 Neil Road) Reno, Nevada 89520-0400 (89511) (775) 834-4011	88-0044418

None

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act (17 CFR 240.14a-12(b))

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

Ex-99.1 Press Release dated February 11, 2008

Item 2.02 Results of Operations and Financial Condition

     On February 11, 2008, Sierra Pacific Resources and its two utility subsidiaries, Nevada Power Company and Sierra Pacific Power Company, issued a press release disclosing financial results for the fiscal year ended December 31, 2007. The text of the release is furnished herewith as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(c) Exhibits — The following exhibit is furnished with this Form 8-K:

EX-99.1 — Press Release dated February 11, 2008

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: February 11, 2008	By:	/s/ E. Kevin Bethel
		E. Kevin Bethel
		Chief Accounting Officer
	Nevada Power Company
	(Registrant)
Date: February 11, 2008	By:	/s/ E. Kevin Bethel
		E. Kevin Bethel
		Chief Accounting Officer
	Sierra Pacific Power Company
	(Registrant)
Date: February 11, 2008	By:	/s/ E. Kevin Bethel
		E. Kevin Bethel
		Chief Accounting Officer