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) April 29, 2010

Commission File Number	Exact Name of Registrant as Specified in its Charter; State of Incorporation; Address of Principal Executive Offices; and Telephone Number	IRS Employer Identification Number
001-3034	XCEL ENERGY	41-0448030
	(a Minnesota corporation)
	414 Nicollet Mall
	Minneapolis, Minnesota 55401
	(612) 330-5500

000-31387	NORTHERN STATES POWER COMPANY	41-1967505
	(a Minnesota corporation)
	414 Nicollet Mall
	Minneapolis, Minnesota 55401
	(612) 330-5500

001-03140	NORTHERN STATES POWER COMPANY	39-0508315
	(a Wisconsin corporation)
	1414 W. Hamilton Avenue
	Eau Claire, Wisconsin 54701
	(715) 839-2625

001-3280	PUBLIC SERVICE COMPANY OF COLORADO	84-0296600
	(a Colorado corporation)
	1225 17th Street
	Denver, Colorado 80202
	(303) 571-7511

001-03789	SOUTHWESTERN PUBLIC SERVICE COMPANY	75-0575400
	(a New Mexico corporation)
	Tyler at Sixth
	Amarillo, Texas 79101
	(303) 571-7511

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 (see General Instruction A.2. below):

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

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

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))

Item 2.02. Results of Operations and Financial Condition

On April 29, 2010, Xcel Energy released earnings results for the first quarter of 2010.

See additional information in the Earnings Release furnished as exhibit 99.01.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

Exhibit No.		Description

99.01		Earnings Release of Xcel Energy dated April 29, 2010.

SIGNATURES

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 hereunto duly authorized.

April 29, 2010	Xcel Energy Inc.
	(a Minnesota corporation)
	Northern States Power Company
	(a Minnesota corporation)
	Northern States Power Company
	(a Wisconsin corporation)
	Public Service Company of Colorado
	(a Colorado corporation)
	Southwestern Public Service Company
	(a New Mexico corporation)

	/s/ DAVID M. SPARBY
	David M. Sparby
	Vice President and Chief Financial Officer