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 15, 2006

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 10100 (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

	Section 7—Regulation FD
	Item 7.01 Regulation FD Disclosure
	Section 9—Financial Statements and Exhibits
	Item 9.01 Financial Statements and Exhibits.
SIGNATURES
Ex-99.1 Information from investor presentation

Section 7—Regulation FD

Item 7.01 Regulation FD Disclosure

Sierra Pacific Resources will be conducting meetings with investors, bankers and analysts. Exhibit 99.1 hereto contains certain information that will be included in presentations made by Sierra Pacific Resources together with reconciliations of non-GAAP financial information to the most directly comparable financial measures calculated and presented in accordance with GAAP. Pursuant to general instruction B.2 to Form 8-K, the information furnished pursuant to Item 7.01 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.

Section 9—Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(c) Exhibits.

     99.1 Information from investor presentation.

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: March 15, 2006	By:	/s/ John E. Brown
		John E. Brown
		Controller
	Nevada Power Company (Registrant)
Date: March 15, 2006	By:	/s/ John E. Brown
		John E. Brown
		Controller
	Sierra Pacific Power Company (Registrant)
Date: March 15, 2006	By:	/s/ John E. Brown
		John E. Brown
		Controller