Common use of Public Service Company of Colorado Clause in Contracts

Public Service Company of Colorado. Liens in connection with the Capital Lease between Young Gas Storage Company, Ltd. and Public Service Company of Colorado dated as of June 1995 for the lease of a natural gas storage facility. The lease will expire in May 2025. Liens in connection with the Capital Lease between WYCO Development LLC and Public Service Company of Colorado dated as of December 1, 1999 for the lease of the Front Range Natural Gas Pipeline. The lease will expire in December 2029. Liens in connection with the Capital Lease between Public Service Company of Colorado and Colorado Interstate Gas Company dated as of July 2009 for the lease of the Totem Natural Gas Storage Facility. The lease will expire in April 2040. Northern States Power Company (Minnesota) None. Northern States Power Company (Wisconsin) None. Southwestern Public Service Company None. EXHIBIT A FORM OF CLOSING CERTIFICATE July 27, 2012 Pursuant to Section 5.3(f) of the Amended and Restated Credit Agreement, dated as of the date hereof (as amended, supplemented or otherwise modified from time to time, the “Amended and Restated Credit Agreement”; terms defined therein being used herein as therein defined), among Xcel Energy Inc. (the “Borrower”), the Lenders party thereto, the Documentation Agent and Syndication Agents named therein and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”), the undersigned [INSERT TITLE OF OFFICER] of the Borrower hereby certifies as follows:

Public Service Company of Colorado. Liens in connection with the Capital Lease between Young Gas Storage Company, Ltd. and Public Service Company of Colorado dated as of June 1995 for the lease of a natural gas storage facility. The lease will expire in May 2025. Liens in connection with the Capital Lease between WYCO Development LLC and Public Service Company of Colorado dated as of December 1, 1999 for the lease of the Front Range Natural Gas Pipeline. The lease will expire in December 2029. Liens in connection with the Capital Lease between Public Service Company of Colorado and Colorado Interstate Gas Company dated as of July 2009 for the lease of the Totem Natural Gas Storage Facility. The lease will expire in April 2040. Northern States Power Company (Minnesota) None. Northern States Power Company (Wisconsin) None. Southwestern Public Service Company None. EXHIBIT A FORM OF CLOSING CERTIFICATE July 27March [__], 2012 2011 Pursuant to Section 5.3(f5.1(f) of the Amended and Restated Credit Agreement, dated as of the date hereof (as amended, supplemented or otherwise modified from time to time, the “Amended and Restated Credit Agreement”; terms defined therein being used herein as therein defined), among Xcel Energy Inc. Public Service Company of Colorado (the “Borrower”), the Lenders party thereto, the Documentation Agent and Syndication Agents named therein and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”), the undersigned [INSERT TITLE OF OFFICER] of the Borrower hereby certifies as follows:

Public Service Company of Colorado. Liens in connection with the Capital Lease between Young Gas Storage Company, Ltd. and Public Service Company of Colorado dated as of June 1995 for the lease of a natural gas storage facility. The lease will expire in May 2025. Liens in connection with the Capital Lease between WYCO Development LLC and Public Service Company of Colorado dated as of December 1, 1999 for the lease of the Front Range Natural Gas Pipeline. The lease will expire in December 2029. Liens in connection with the Capital Lease between Public Service Company of Colorado and Colorado Interstate Gas Company dated as of July 2009 for the lease of the Totem Natural Gas Storage Facility. The lease will expire in April 2040. Northern States Power Company (Minnesota) None. Northern States Power Company (Wisconsin) None. Southwestern Public Service Company None. XXXXXXX 0000000 EXHIBIT A FORM OF CLOSING CERTIFICATE July 27[_____], 2012 2014 Pursuant to Section 5.3(f) of the Amended and Restated Credit Agreement, dated as of the date hereof (as amended, supplemented or otherwise modified from time to time, the “Amended and Restated Credit Agreement”; terms defined therein being used herein as therein defined), among Xcel Energy Inc. Public Service Company of Colorado, a Colorado corporation (the “Borrower”), the Lenders party thereto, the Documentation Agent and Syndication Agents named therein and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”), the undersigned [INSERT TITLE OF OFFICER] of the Borrower hereby certifies as follows:

Public Service Company of Colorado. Liens in connection with the Capital Lease between Young Gas Storage Company, Ltd. and Public Service Company of Colorado dated as of June 1995 for the lease of a natural gas storage facility. The lease will expire in May 2025. Liens in connection with the Capital Lease between WYCO Development LLC and Public Service Company of Colorado dated as of December 1, 1999 for the lease of the Front Range Natural Gas Pipeline. The lease will expire in December 2029. Liens in connection with the Capital Lease between Public Service Company of Colorado and Colorado Interstate Gas Company dated as of July 2009 for the lease of the Totem Natural Gas Storage Facility. The lease will expire in April 2040. Northern States Power Company (Minnesota) None. Northern States Power Company (Wisconsin) None. Southwestern Public Service Company None. EXHIBIT A FORM OF CLOSING CERTIFICATE July 27, 2012 Pursuant to Section 5.3(f) of the Amended and Restated Credit Agreement, dated as of the date hereof (as amended, supplemented or otherwise modified from time to time, the “Amended and Restated Credit Agreement”; terms defined therein being used herein as therein defined), among Xcel Energy Inc. Public Service Company of Colorado (the “Borrower”), the Lenders party thereto, the Documentation Agent and Syndication Agents named therein and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”), the undersigned [INSERT TITLE OF OFFICER] of the Borrower hereby certifies as follows: