8-K

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) October 6, 2005

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 P.O. Box 10100 (6100 Neil Road) Reno, Nevada 89520-0400 (89511) (775) 834-4011	88-0198358
2-28348	NEVADA POWER COMPANY 6226 West Sahara Avenue Las Vegas, Nevada 89146 (702) 367-5000	88-0420104
0-00508	SIERRA PACIFIC POWER COMPANY P.O. Box 10100 (6100 Neil Road) Reno, Nevada 89520-0400 (89511) (775) 834-4011	88-0044418

None

(Former name, former address and former fiscal year, 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:

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

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

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

[ ] 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 October 6, 2005

Item 7.01.   Regulation FD Disclosure

     On October 11, 2005, Sierra Pacific Resources will be hosting a live webcast of its Tuesday, October 11, 2005 securities analysts meeting in Las Vegas, Nevada. The webcast, which will begin at 8:30 a.m. (PDT) will include presentations by company management as well as a panel discussion involving state energy policy and growth in Nevada. Among the company speakers will be Walter Higgins, Sierra Pacific’s Chairman and Chief Executive Officer, and Michael Yackira, Executive Vice President and Chief Financial Officer. Guest speakers will include Don Soderberg, Chairman of the Public Utilities Commission of Nevada; Rebecca Wagner, Director of Nevada’s Office of Energy; and Somer Hollingsworth, President and Chief Executive Officer of the Nevada Development Authority. A copy of the press release dated October 6, 2005 is furnished herewith. The presentation materials and an audio webcast will be available on Sierra Pacific Resource’s website at www.sierrapacificresources.com. The webcast will also be archived on the company’s website.

     The information in this Current Report on Form 8-K, including the exhibit hereto, is being furnished, not filed, pursuant to Regulation FD.

Item 9.01.   Financial Statements and Exhibits

(a)	Financial Statements of Businesses Acquired
	Not required
(b)	Pro forma financial information
	Not required
(c)	Exhibits
	99.1 Press release dated October 6, 2005.

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: October 7, 2005	By:
		/s/ John E. Brown
		John E. Brown Controller
	Nevada Power Company (Registrant)
Date: October 7, 2005	By:
		/s/ John E. Brown
		John E. Brown Controller
	Sierra Pacific Power Company (Registrant)
Date: October 7, 2005	By:
		/s/ John E. Brown
		John E. Brown Controller

EX-99.1

Exhibit 99.1

Sierra Pacific Resources to Webcast Analysts Meeting October 11

LAS VEGAS, Oct. 6 /PRNewswire-FirstCall/ — Sierra Pacific Resources (NYSE: SRP) will present a live webcast of its Tuesday, Oct. 11, securities analysts meeting in Las Vegas. The webcast, which will begin at 8:30 a.m. (PDT) and continue throughout the morning, will include presentations by company management as well as a panel discussion involving state energy policy and growth in Nevada.

Among the company speakers will be Walter Higgins, Sierra Pacific’s chairman and chief executive officer, and Michael Yackira, executive vice president and chief financial officer.

Guest speakers will include Don Soderberg, chairman of the Public Utilities Commission of Nevada; Rebecca Wagner, director of Nevada’s Office of Energy; and Somer Hollingsworth, president and chief executive officer of the Nevada Development Authority.

To access the webcast, visit the company’s website at www.sierrapacificresources.com and click on the “Investors” tab. The webcast will also be archived on the company’s website.

Headquartered in Nevada, Sierra Pacific Resources is a holding company whose principal subsidiaries are Nevada Power Company, the electric utility for most of southern Nevada, and Sierra Pacific Power Company, the electric utility for most of northern Nevada and the Lake Tahoe area of California. Sierra Pacific Power Company also distributes natural gas in the Reno-Sparks area of northern Nevada. Other subsidiaries include the Tuscarora Gas Pipeline Company, which owns 50 percent interest in an interstate natural gas transmission partnership.

SOURCE
Sierra Pacific Resources
CONTACT:
Media,
Karl Walquist,
+1-775-834-3891,
or Analysts,
Britta Carlson,
+1-702-367-5624,
both of Sierra Pacific Resources.
Web site: http://www.sierrapacific.com