Denver Post, Exhibit No. 1 Date of Notice: July 24, 2013 NOTICE OF A CHANGE IN THE ELECTRIC RATES OF PUBLIC SERVICE COMPANY OF COLORADO 1800 LARIMER STREET, DENVER, COLORADO 80202 You are hereby notified that Public Service Company of Colorado (“Public Service”) has filed with the Colorado Public Utilities Commission (“Commission”) its 2014 Renewable Energy Standard Complance Plan seeking, among other things, approval to change its Photovoltaic Service Tariff, Windsource Service Tariff, Net Metering Service Tariff, Renewable Energy Standard Adjustment Tariff. Public Service Company of Colorado is also seeking to add the Renewable Energy Service Tariff The proposed tariff revisions are as follows: modify the PV system sizes that define a small and a medium system as set forth in the PV Service Schedule; introduce the RER Serviceapplicable to residential, commercial and industrial customers who install a Renewable Energy Resource connected in parallel with the Company’s electric system, and set forth the rate paid forRenewable Energy Credits generated from these resources; eliminate the minimum contract term and change the premium for the Windsource Service; revise the monthly rate section of the NMService Schedule to implement a Production Meter Charge for customers receiving optional service under either the PV Service Schedule or the Renewable Energy Resource Service Schedule, who install their generation facility on or after January 1, 2014; and, as required by Commissions Rule 4 CCR 723-3-3664(h), add to the RESA Schedule a RESA “fair share” charge applicable to net metered customers who install their generation facilities on or afterJanuary 1, 2014. The proposed and present tariffs are available for examination and explanation at the business office of Public Service located at 1800 Larimer Street, Suite 1400, Denver, CO and at the office of the Commission in Denver, Colorado. Customers who have questions may call the Commission at (303) 894-2000, Xcel Energy at 1-800-895-4999, fax to Xcel Energy at 1-800895-2895, or e-mail to inquire@xcelenergy.com . Anyone who desires may file written objection. The filing of a written objection by itself will not allow you to participate as a party in any proceeding on the proposed estimated increase. If you wish to participate as a party in any new proceeding established concerning these matters, you must file written intervention documents under Rule 1401 of the Commission’s Rules of Practice and Procedure or any applicable Commission orders. Anyone who desires to file written objection to the proposed action, shall file it with the Colorado Public Utilities Commission, 1560 Broadway, Suite 250, Denver, Colorado, 80202, or email it to dora_puc_complaints@state.co.us . The Commission may hold a hearing to determine whether to approve the Company’s application. Any person wishing to intervene in a Commission proceeding on Public Service’s application should file an intervention under the Commission’s rules within 30 days of this notice. The Commission may hold a hearing to determine what rates, rules and regulations will be authorized. If a hearing is held, the Commission may suspend the proposed rates, rules or regulations. The rates, rules and regulations ultimately authorized may or may not be the same as those proposed and may include rates higher or lower than those proposed or currently in effect. Anyone who desires to receive notice of any hearing shall file a written request for notice with the Colorado Public Utilities Commission at the above address or alternatively shall contact the External Affairs Section of the Colorado Public Utilities Commission at 303-894-2070 or toll free 1-800-456-0858. Customers who have questions may call the Commission at 303-894-2000, Xcel Energy at 1-800-895-4999, fax to Xcel Energy at 1-800-895-2895, or e-mail to inquire@xcelenergy.com . If a hearing is held, any member of the public may attend and may make a statement under oath about the proposed changes, whether or not he or she has filed an objection or intervention. By: Scott B. Brockett Director, Regulatory Administration and Compliance