Exhibit 25(a)

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM T-1

STATEMENT OF ELIGIBILITY UNDER

THE TRUST INDENTURE ACT OF 1939 OF A

CORPORATION DESIGNATED TO ACT AS TRUSTEE

Check if an Application to Determine Eligibility of

a Trustee Pursuant to Section 305(b)(2)

U.S. BANK NATIONAL ASSOCIATION

(Exact name of Trustee as specified in its charter)

31-0841368

I.R.S. Employer Identification No.

800 Nicollet Mall Minneapolis, Minnesota	55402
(Address of principal executive offices)	(Zip Code)

K. Wendy Kumar

U.S. Bank National Association

100 Wall Street

New York, NY 10005

(212) 951-8561

(Name, address and telephone number of agent for service)

Public Service Company of Colorado

(Issuer with respect to the Securities)

Colorado	84-0296600
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1800 Larimer Street – Suite 1100 Denver, Colorado	80202
(Address of Principal Executive Offices)	(Zip Code)

First Mortgage Bonds

 (Title of the Indenture Securities)

FORM T-1

Item 1. GENERAL INFORMATION.  Furnish the following information as to the Trustee.

a) Name and address of each examining or supervising authority to which it is subject.

Comptroller of the Currency

Washington, D.C.

b) Whether it is authorized to exercise corporate trust powers.

Yes

Item 2. AFFILIATIONS WITH OBLIGOR. If the obligor is an affiliate of the Trustee, describe each such affiliation.

None

Items 3-15 Items 3-15 are not applicable because to the best of the Trustee's knowledge, the obligor is not in default under any Indenture for which the Trustee acts as Trustee.

Item 16. LIST OF EXHIBITS:  List below all exhibits filed as a part of this statement of eligibility and qualification.

1. A copy of the Articles of Association of the Trustee.*

2. A copy of the certificate of authority of the Trustee to commence business, attached as Exhibit 2.

3. A copy of the certificate of authority of the Trustee to exercise corporate trust powers, attached as Exhibit 3.

4. A copy of the existing bylaws of the Trustee.**

5. A copy of each Indenture referred to in Item 4.  Not applicable.

6. The consent of the Trustee required by Section 321(b) of the Trust Indenture Act of 1939, attached as Exhibit 6.

7. Report of Condition of the Trustee as of June 30, 2013 published pursuant to law or the requirements of its supervising or examining authority, attached as Exhibit 7.

* Incorporated by reference to Exhibit 25.1 to Amendment No. 2 to registration statement on S-4, Registration Number 333-128217 filed on November 15, 2005.

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** Incorporated by reference to Exhibit 25.1 to registration statement on S-4, Registration Number 333-166527 filed on May 5, 2010.

SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939, as amended, the Trustee, U.S. BANK NATIONAL ASSOCIATION, a national banking association organized and existing under the laws of the United States of America, has duly caused this statement of eligibility and qualification to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of New York, State of New York on the 26^th of September, 2013.

By:	/s/ K. Wendy Kumar
	K. Wendy Kumar
	Vice President

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Exhibit 2

4

Exhibit 3

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Exhibit 6

CONSENT

In accordance with Section 321(b) of the Trust Indenture Act of 1939, the undersigned, U.S. BANK NATIONAL ASSOCIATION hereby consents that reports of examination of the undersigned by Federal, State, Territorial or District authorities may be furnished by such authorities to the Securities and Exchange Commission upon its request therefor.

Dated:  September 26, 2013
	By:	/s/ K. Wendy Kumar
		K. Wendy Kumar
		Vice President

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Exhibit 7

U.S. Bank National Association

Statement of Financial Condition

As of 6/30/2013

($000’s)

	6/30/2013
Assets
Cash and Balances Due From Depository Institutions	$	6,618,511
Securities		74,478,321
Federal Funds		79,268
Loans & Lease Financing Receivables		226,554,158
Fixed Assets		4,958,016
Intangible Assets		13,125,133
Other Assets		23,519,520
Total Assets	$	349,332,927
Liabilities
Deposits	$	260,085,043
Fed Funds		2,946,249
Treasury Demand Notes		0
Trading Liabilities		639,343
Other Borrowed Money		27,488,313
Acceptances		0
Subordinated Notes and Debentures		4,836,320
Other Liabilities		13,040,945
Total Liabilities	$	309,036,213
Equity
Common and Preferred Stock		18,200
Surplus		14,216,132
Undivided Profits		24,513,966
Minority Interest in Subsidiaries	$	1,548,416
Total Equity Capital	$	40,296,714
Total Liabilities and Equity Capital	$	349,332,927

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