Honorable Kimberly D. Bose Secretary Federal Energy ... ? 414 Nicollet Mall, Minneapolis, MN 56401

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414 Nicollet Mall, Minneapolis, MN 56401 April 18, 2016 Honorable Kimberly D. Bose Secretary Federal Energy Regulatory Commission 888 First Street, NE Washington, DC 20426 Re: Public Service Company of Colorado Docket Nos. ER15-266-000, et al. eTariff Compliance Filing Dear Ms. Bose: On March 17, 2016, the Federal Energy Regulatory Commission (Commission) issued a letter order1 in the above-captioned proceeding approving the uncontested Stipulation and Offer of Settlement (Settlement) filed on December 31, 2015, by Public Service Company of Colorado (PSCo or Company). In accordance with Section III.D.1 of the Settlement and Paragraph 5 of the Letter Order, PSCo hereby submits in eTariff format this compliance filing, which contains tariff revisions to the Xcel Energy Operating Companies Joint Open Access Transmission Tariff (Xcel Energy OATT) that update the loss factors applicable to transmission service on PSCos transmission and distribution systems and in PSCos Balancing Area Authority, to be effective January 1, 2014. I. Background On October 31, 2014, PSCo submitted revised tariff records to update the transmission loss factors applicable to PSCo under the Xcel Energy OATT and requested an effective date of January 1, 2014.2 On April 10, 2015, the Commission issued an order accepting and suspending the proposed tariff changes, subject to refund, and set the revised loss factors for hearing and settlement judge procedures.3 PSCo filed the Settlement on December 31, 2015, and the 1 Public Service Co. of Colorado, 154 FERC 61,205 (2016) (Letter Order). 2 PSCos October 31, 2014 filing was submitted in compliance with a prior partial settlement approved by the Commission in Docket Nos. ER12-1589-000 and EL12-77-000 (consolidated), in which PSCo agreed to undertake a transmission and distribution system loss study and to make a limited filing pursuant to Section 205 of the Federal Power Act to update the transmission loss factors applicable to PSCos transmission formula rates effective January 1, 2014. Public Service Co. of Colorado, 145 FERC 61,266 (2013). 3 Public Service Co. of Colorado, 151 FERC 61,018 (2015) (Hearing Order). Honorable Kimberly D. Bose April 18, 2016 Page 2 Settlement was certified to the Commission on February 3, 2016.4 The Commission approved the Settlement in the Letter Order. On April 15, 2016, in Docket No.ER16-1422-000 PSCo filed to re-baseline the Xcel Energy OATT (Tariff ID 2001) and in Docket No. ER16-1427-000 PSCo filed to cancel the existing Xcel Energy OATT (Tariff ID 2000). The instant filing is intended to update the canceled Xcel Energy OATT (Tariff ID2000). II. Reason for the Filing In the transmittal letter accompanying the Settlement, PSCo indicated that it was not filing the Settlement in eTariff format, pending Commission approval of the Settlement. In Section III.D.1 of the Settlement, the parties agreed that within thirty-five days (35) of a Commission final order approving the Settlement, without modification or condition, PSCo would file compliance tariff pages/eTariff records to the Xcel Energy OATT to update the PSCo loss factors to conform to the Settlement. In compliance with the Settlement, this filing submits the revised tariff records agreed to in the Settlement and approved by the Commission in eTariff format. The revised tariff records, which were included as Exhibits A and B to Attachment 2 to the Settlement and approved by the Letter Order, are replicated as an attachment in this compliance filings XML package. The eTariff provisions submitted herein supersede and replace the tariff provisions accepted in the Hearing Order, subject to refund, effective January 1, 2014. Through this compliance filing, PSCo submits the relevant tariff provisions in eTariff so that the revised tariff provisions accepted and approved by the Commission in this proceeding will be fully reflected in the Xcel Energy OATT in eTariff format consistent with Order No. 714.5 The Settlement reflects a reduction in the loss factors from the loss factors previously accepted for filing. Refunds will be paid in accordance with Section III.D.1 of the Settlement. 4 Public Service Co. of Colorado, 154 FERC 63,010 (2016) (certification of uncontested settlement). 5 On February 29, 2016, PSCo, on behalf of its public utility operating company affiliate Southwestern Public Service Company (SPS), filed revisions to Sections 15.7 and 28.5 of the Xcel Energy OATT to update the transmission loss factors applicable to the SPS transmission system effective May 1, 2016. See Docket No. ER16-1030-000. The SPS loss factor revisions were not contested. PSCo has versioned the eTariff records included with this filing so they are effective January 1, 2014, prior to the May 1, 2016 effective date of the SPS tariff records submitted in Docket No. ER16-1030-000. The PSCo loss factor compliance changes submitted in the instant filing will then be incorporated in the Xcel Energy OATT eTariff records effective May 1, 2016, if the Commission accepts the SPS loss factor changes for filing. 2 Honorable Kimberly D. Bose April 18, 2016 Page 3 III. Correspondence and Communications All correspondence and communications regarding this compliance filing should be directed to the following persons: Liam D. Noailles Manager, Regulatory Administration - Transmission Xcel Energy Services Inc. 1800 Larimer 14th Floor Denver, CO 80202 Phone: (303) 571-2794 Liam.D.Noailles@xcelenergy.com James P. Johnson Assistant General Counsel Xcel Energy Services Inc. 414 Nicollet Mall, 5th Floor Minneapolis, MN 55401 Phone: (612) 215-4592 james.p.johnson@xcelenergy.com Mark C. Moeller Manager, Transmission Business Relations Xcel Energy Services Inc. 414 Nicollet Mall - MP8 Minneapolis, MN 55401 Phone: (612) 330-7753 Mark.C.Moeller@xcelenergy.com James C. Beh Patrick T. Metz JONES DAY 51 Louisiana Ave., N.W. Washington, DC 20001 Phone: (202) 879-3939 jcbeh@jonesday.com ptmetz@jonesday.com IV. Effective Date Consistent with Section III.D.1 of the Settlement and as approved by the Commission, the tariff provisions submitted in this compliance filing are to be effective January 1, 2014. V. Conclusion PSCo respectfully requests that the Commission accept these approved tariff records for eTariff purposes, effective January 1, 2014, as described above. PSCo will electronically serve a copy of this compliance filing on all parties to Docket No. ER16-266-000 et al. 3 Honorable Kimberly D. Bose April 18, 2016 Page 4 Respectfully submitted, /s/ James P. Johnson James P. Johnson Assistant General Counsel Xcel Energy Services Inc. 401 Nicollet Mall 8th Floor Minneapolis, MN 55401 james.p.johnson@xcelenergy.com Attorney for Public Service Company of Colorado cc: All Parties NAI-1500914701v1 4 15 Service Availability 15.1 General Conditions: The Transmission Provider will provide Firm and Non-Firm Point-To-Point Transmission Service over, on or across its Transmission System to any Transmission Customer that has met the requirements of Section 16. 15.2 Determination of Available Transfer Capability: A description of the Transmission Provider's specific methodology for assessing available transfer capability posted on the Transmission Provider's OASIS (Section 4) is contained in Attachment C of the Tariff. In the event sufficient transfer capability may not exist to accommodate a service request, the Transmission Provider will respond by performing a System Impact Study. 15.3 Initiating Service in the Absence of an Executed Service Agreement: If the Transmission Provider and the Transmission Customer requesting Firm or Non-Firm Point-To-Point Transmission Service cannot agree on all the terms and conditions of the Point-To-Point Service Agreement, the Transmission Provider shall file with the Commission, within thirty (30) days after the date the Transmission Customer provides written notification directing the Transmission Provider to file, an unexecuted Point-To-Point Service Agreement containing terms and conditions deemed appropriate by the Transmission Provider for such requested Transmission Service. The Transmission Provider shall commence providing Transmission Service subject to the Transmission Customer agreeing to (i) compensate the Transmission Provider at whatever rate the Commission ultimately determines to be just and reasonable, and (ii) comply with the terms and conditions of the Tariff including posting appropriate security deposits in accordance with the terms of Section 17.3. 15.4 Obligation to Provide Transmission Service that Requires Expansion or Modification of the Transmission System, Redispatch or Conditional Curtailment: (a) If the Transmission Provider determines that it cannot accommodate a Completed Application for Firm Point-To-Point Transmission Service because of insufficient capability on its Transmission System, the Transmission Provider will use due diligence to expand or modify its Transmission System to provide the requested Firm Transmission Service, consistent with its planning obligations in Attachment R, provided the Transmission Customer agrees to compensate the Transmission Provider for such costs pursuant to the terms of Section 27. The Transmission Provider will conform to Good Utility Practice and its planning obligations in Attachment R, in determining the need for new facilities and in the design and construction of such facilities. The obligation applies only to those facilities that the Transmission Provider has the right to expand or modify. (b) If the Transmission Provider determines that it cannot accommodate a Completed Application for Long-Term Firm Point-To-Point Transmission Service because of insufficient capability on its Transmission System, the Transmission Provider will use due diligence to provide redispatch from its own resources until (i) Network Upgrades are completed for the Transmission Customer, (ii) the Transmission Provider determines through a biennial reassessment that it can no longer reliably provide the redispatch, or (iii) the Transmission Customer terminates the service because of redispatch changes resulting from the reassessment. A Transmission Provider shall not unreasonably deny self-provided redispatch or redispatch arranged by the Transmission Customer from a third party resource. (c) If the Transmission Provider determines that it cannot accommodate a Completed Application for Long-Term Firm Point-To-Point Transmission Service because of insufficient capability on its Transmission System, the Transmission Provider will offer the Firm Transmission Service with the condition that the Transmission Provider may curtail the service prior to the curtailment of other Firm Transmission Service for a specified number of hours per year or during System Condition(s). If the Transmission Customer accepts the service, the Transmission Provider will use due diligence to provide the service until (i) Network Upgrades are completed for the Transmission Customer, (ii) the Transmission Provider determines through a biennial reassessment that it can no longer reliably provide such service, or (iii) the Transmission Customer terminates the service because the reassessment increased the number of hours per year of conditional curtailment or changed the System Conditions. 15.5 Deferral of Service: The Transmission Provider may defer providing service until it completes construction of new transmission facilities or upgrades needed to provide Firm Point-To-Point Transmission Service whenever the Transmission Provider determines that providing the requested service would, without such new facilities or upgrades, impair or degrade reliability to any existing firm services. 15.6 Other Transmission Service Schedules: Eligible Customers receiving transmission service under other agreements on file with the Commission may continue to receive transmission service under those agreements until such time as those agreements may be modified by the Commission. 15.7 Real Power Losses: Real Power Losses are associated with all transmission service. The Transmission Provider is not obligated to provide Real Power Losses. The Transmission Customer is responsible for replacing losses associated with all transmission service as calculated by the Transmission Provider. The applicable Real Power Losses are as follows: For Service on the NSP Transmission System: 2.4% For Service on the PSCo System: Demand Energy Transmission System: 2.5220% 1.8770% Distribution System Primary Voltage: 2.283.75% 1.812.07% For Service on the SPS System: Demand Energy Transmission System: 3.3370% 2.6493% Distribution System Primary Voltage: 10.0501% 7.1863% The loss factors for Direct Assignment Facilities shall be determined on a case by case basis. 28 Nature of Network Integration Transmission Service 28.1 Scope of Service: Network Integration Transmission Service is a transmission service that allows Network Customers to efficiently and economically utilize their Network Resources (as well as other non-designated generation resources) to serve their Network Load located in the Transmission Provider's Control Area and any additional load that may be designated pursuant to Section 31.3 of the Tariff. The Network Customer taking Network Integration Transmission Service must obtain or provide Ancillary Services pursuant to Section 3. 28.2 Transmission Provider Responsibilities: The Transmission Provider will plan, construct, operate and maintain its Transmission System in accordance with Good Utility Practice and its planning obligations in Attachment R in order to provide the Network Customer with Network Integration Transmission Service over the Transmission Provider's Transmission System. The Transmission Provider, on behalf of its Native Load Customers, shall be required to designate resources and loads in the same manner as any Network Customer under Part III of this Tariff. This information must be consistent with the information used by the Transmission Provider to calculate available transfer capability. The Transmission Provider shall include the Network Customer's Network Load in its Transmission System planning and shall, consistent with Good Utility Practice and Attachment R, endeavor to construct and place into service sufficient transfer capability to deliver the Network Customer's Network Resources to serve its Network Load on a basis comparable to the Transmission Provider's delivery of its own generating and purchased resources to its Native Load Customers. 28.3 Network Integration Transmission Service: The Transmission Provider will provide firm transmission service over its Transmission System to the Network Customer for the delivery of capacity and energy from its designated Network Resources to service its Network Loads on a basis that is comparable to the Transmission Provider's use of the Transmission System to reliably serve its Native Load Customers. 28.4 Secondary Service: The Network Customer may use the Transmission Provider's Transmission System to deliver energy to its Network Loads from resources that have not been designated as Network Resources. Such energy shall be transmitted, on an as-available basis, at no additional charge. Secondary service shall not require the filing of an Application for Network Integration Transmission Service under the Tariff. However, all other requirements of Part III of the Tariff (except for transmission rates) shall apply to secondary service. Deliveries from resources other than Network Resources will have a higher priority than any Non-Firm Point-To-Point Transmission Service under Part II of the Tariff. 28.5 Real Power Losses: Real Power Losses are associated with all transmission service. The Transmission Provider is not obligated to provide Real Power Losses. The Network Customer is responsible for replacing losses associated with all transmission service as calculated by the Transmission Provider. The applicable Real Power Losses are as follows: For Service on the NSP Transmission System: 2.4% For Service on the PSCo System: Demand Energy Transmission System: 2.5220% 1.8770% Distribution System Primary Voltage: 2.283.75% 1.812.07% For Service on the SPS System: Demand Energy Transmission System: 3.3370% 2.6493% Distribution System Primary Voltage: 10.0501% 7.1863% The loss factors for Direct Assignment Facilities shall be determined on a case by case basis. 28.6 Restrictions on Use of Service: The Network Customer shall not use Network Integration Transmission Service for (i) sales of capacity and energy to non-designated loads, or (ii) direct or indirect provision of transmission service by the Network Customer to third parties. All Network Customers taking Network Integration Transmission Service shall use Point-To-Point Transmission Service under Part II of the Tariff for any Third-Party Sale which requires use of the Transmission Provider's Transmission System. The Transmission Provider shall specify any appropriate charges and penalties and all related terms and conditions applicable in the event that a Network Customer uses Network Integration Transmission Service or secondary service pursuant to Section 28.4 to facilitate a wholesale sale that does not serve a Network Load. 37 Nature of Balancing Authority Services 37.1 Requirement to Provide and Obtain BA Services: An Ancillary Service Customer (ASC) shall purchase from the BA Operator, self-provide, or purchase from a third party BA Services for all load or generating units in the PSCo BAA. The ASC shall obtain BA Services pursuant to the rates, terms, and conditions specified in this Part IV and the provisions of the Service Agreement set forth as Attachment T of this Tariff. 37.2 Source and Acquisition of BA Services: (a) The BA Operator shall provide and the ASC is required to purchase Scheduling, System Control, and Dispatch Service as provided in Schedule 1 to this Tariff. (b) The BA Operator shall also offer to provide the following BA Services: (i) Reactive Supply and Voltage Control from Generation Sources as specified in Schedule 2 to this Tariff; (ii) Regulation and Frequency Response Service as specified in Schedule 3; (iii) Energy Imbalance Service as specified in Schedule 4; (iv) Operating ReserveSpinning Reserve Service as specified in Schedule 5; (v) Operating ReserveSupplemental Reserve Service as specified in Schedule 6; (vi) Flex Reserve Service as specified in Schedule 16; (vii) Generator Imbalance service as specified in Schedule 9, and (viii) real power losses. (c) The ASC shall designate the BA Services to be provided by the BA Operator in the service agreement between the ASC and BA Operator, in the form provided in Attachment T. The ASC must acquire such BA Services from the BA Operator unless the ASC demonstrates to the satisfaction of the BA Operator that the ASC has acquired such BA Services from another source, either by self-providing or purchasing from a third party. (d) Each ASC subject to this Part IV must specify on the Service Agreement set forth in Attachment T and required under this Part IV (a) those BA Services the ASC will purchase from the BA Operator, and (b) the loads designated for such BA services. If the Balancing Authority Operator and Ancillary Service Customer disagree on the load to be designated as subject to Part IV, the Balancing Authority Operator shall file the unexecuted Service Agreement with the Commission. (e) Each ASC subject to this Part IV must provide an attestation annually that specifies the amounts of VER generation and non-VER generation owned or controlled by the ASC. 37.3 Sufficiency of Balancing Authority Services: The BA Operator shall determine the sufficiency of any BA Service obtained by an ASC pursuant to the requirements of this Part IV. In the event of a dispute, the Dispute Resolution provisions of Section 12 shall apply. 37.4 Real Power Losses: Real Power Losses are associated with all transmission transactions scheduled by ASCs within the PSCo BAA. The BA Operator is not obligated to provide Real Power Losses. The ASC is responsible for replacing losses associated with all BA Services as calculated by the BA Operator. The ASCs Real Power Loss obligation will be determined based on the location of the ASCs metered points on the transmission system; however, the exact identification of loss obligations for ASCs will be determined at the time the ASCs form of service agreement is executed. The ASC will be charged for Real Power Losses on all transactions that are delivered across the BAA to serve the ASCs load, less any losses supplied to the BA or billed to the ASC under Part II or Part III of this Joint OATT or pursuant to any other agreement. The applicable Real Power Losses are as follows For Service in the PSCo BAA: Demand Energy 2.5220% 1.8770% 37.5 Service Agreements: The BA Operator shall offer a standard form of Service Agreement to an ASC, as set forth in Attachment T to this Tariff. An executed Service Agreement completed consistent with the requirements of this Part IV will be reported to the Commission in compliance with applicable Commission regulations. If an ASC does not execute the Service Agreement required by this Part IV, the BA Operator may file an unexecuted Service Agreement with the Commission. The BA Operator shall file any unexecuted Service Agreement with the Commission by the earlier of (i) thirty (30) days after receiving a request from the ASC to file an unexecuted Service Agreement or (ii) thirty (30) days after service commences. 37.6 No Transmission Service Provided: The provision of BA Services under this Part IV does not include or constitute a commitment by Transmission Provider to provide any other type of Service under this Tariff. Xcel Energy Operating Companies Page No. 1 FERC Electric Tariff, Second Revised Volume No. 1 15 Service Availability Version: 0.2.1 Effective: 1/1/2014 15 Service Availability 15.1 General Conditions: The Transmission Provider will provide Firm and Non-Firm Point-To-Point Transmission Service over, on or across its Transmission System to any Transmission Customer that has met the requirements of Section 16. 15.2 Determination of Available Transfer Capability: A description of the Transmission Provider's specific methodology for assessing available transfer capability posted on the Transmission Provider's OASIS (Section 4) is contained in Attachment C of the Tariff. In the event sufficient transfer capability may not exist to accommodate a service request, the Transmission Provider will respond by performing a System Impact Study. 15.3 Initiating Service in the Absence of an Executed Service Agreement: If the Transmission Provider and the Transmission Customer requesting Firm or Non-Firm Point-To-Point Transmission Service cannot agree on all the terms and conditions of the Point-To-Point Service Agreement, the Transmission Provider shall file with the Commission, within thirty (30) days after the date the Transmission Customer provides written notification directing the Transmission Provider to file, an unexecuted Point-To-Point Service Agreement containing terms and conditions deemed appropriate by the Transmission Provider for such requested Transmission Service. The Transmission Provider shall commence providing Transmission Service subject to the Transmission Customer agreeing to (i) compensate the Transmission Provider at whatever rate the Commission ultimately determines to be just and reasonable, and (ii) comply with the terms and conditions of the Tariff including posting appropriate security deposits in accordance with the terms of Section 17.3. 15.4 Obligation to Provide Transmission Service that Requires Expansion or Modification of the Transmission System, Redispatch or Conditional Curtailment: (a) If the Transmission Provider determines that it cannot accommodate a Completed Application for Firm Point-To-Point Transmission Service because of insufficient capability on its Transmission System, the Transmission Provider will use due diligence to expand or modify its Transmission System to provide the requested Firm Transmission Service, consistent with its planning obligations in Attachment R, provided the Transmission Customer agrees to compensate the Transmission Provider for such costs pursuant to the terms of Section 27. The Transmission Provider will conform to Good Utility Practice and its planning obligations in Attachment R, in determining the need for new facilities and in the design and construction of such facilities. The obligation applies only to those facilities that the Transmission Provider has the right to expand or modify. (b) If the Transmission Provider determines that it cannot accommodate a Completed Application for Long-Term Firm Point-To-Point Transmission Service because of insufficient capability on its Transmission System, the Transmission Provider will use due diligence to provide redispatch Xcel Energy Operating Companies Page No. 2 FERC Electric Tariff, Second Revised Volume No. 1 from its own resources until (i) Network Upgrades are completed for the Transmission Customer, (ii) the Transmission Provider determines through a biennial reassessment that it can no longer reliably provide the redispatch, or (iii) the Transmission Customer terminates the service because of redispatch changes resulting from the reassessment. A Transmission Provider shall not unreasonably deny self-provided redispatch or redispatch arranged by the Transmission Customer from a third party resource. (c) If the Transmission Provider determines that it cannot accommodate a Completed Application for Long-Term Firm Point-To-Point Transmission Service because of insufficient capability on its Transmission System, the Transmission Provider will offer the Firm Transmission Service with the condition that the Transmission Provider may curtail the service prior to the curtailment of other Firm Transmission Service for a specified number of hours per year or during System Condition(s). If the Transmission Customer accepts the service, the Transmission Provider will use due diligence to provide the service until (i) Network Upgrades are completed for the Transmission Customer, (ii) the Transmission Provider determines through a biennial reassessment that it can no longer reliably provide such service, or (iii) the Transmission Customer terminates the service because the reassessment increased the number of hours per year of conditional curtailment or changed the System Conditions. 15.5 Deferral of Service: The Transmission Provider may defer providing service until it completes construction of new transmission facilities or upgrades needed to provide Firm Point-To-Point Transmission Service whenever the Transmission Provider determines that providing the requested service would, without such new facilities or upgrades, impair or degrade reliability to any existing firm services. 15.6 Other Transmission Service Schedules: Eligible Customers receiving transmission service under other agreements on file with the Commission may continue to receive transmission service under those agreements until such time as those agreements may be modified by the Commission. Xcel Energy Operating Companies Page No. 3 FERC Electric Tariff, Second Revised Volume No. 1 15.7 Real Power Losses: Real Power Losses are associated with all transmission service. The Transmission Provider is not obligated to provide Real Power Losses. The Transmission Customer is responsible for replacing losses associated with all transmission service as calculated by the Transmission Provider. The applicable Real Power Losses are as follows: For Service on the NSP Transmission System: 2.4% For Service on the PSCo System: Demand Energy Transmission System: 2.20% 1.70% Distribution System Primary Voltage: 3.75% 2.07% For Service on the SPS System: Demand Energy Transmission System: 3.3370% 2.6493% Distribution System Primary Voltage: 10.0501% 7.1863% The loss factors for Direct Assignment Facilities shall be determined on a case by case basis. Xcel Energy Operating Companies Page No. 4 FERC Electric Tariff, Second Revised Volume No. 1 28 Nature of Network Integration Transmission Service Version: 0.2.1 Effective: 1/1/2014 28 Nature of Network Integration Transmission Service 28.1 Scope of Service: Network Integration Transmission Service is a transmission service that allows Network Customers to efficiently and economically utilize their Network Resources (as well as other non-designated generation resources) to serve their Network Load located in the Transmission Provider's Control Area and any additional load that may be designated pursuant to Section 31.3 of the Tariff. The Network Customer taking Network Integration Transmission Service must obtain or provide Ancillary Services pursuant to Section 3. 28.2 Transmission Provider Responsibilities: The Transmission Provider will plan, construct, operate and maintain its Transmission System in accordance with Good Utility Practice and its planning obligations in Attachment R in order to provide the Network Customer with Network Integration Transmission Service over the Transmission Provider's Transmission System. The Transmission Provider, on behalf of its Native Load Customers, shall be required to designate resources and loads in the same manner as any Network Customer under Part III of this Tariff. This information must be consistent with the information used by the Transmission Provider to calculate available transfer capability. The Transmission Provider shall include the Network Customer's Network Load in its Transmission System planning and shall, consistent with Good Utility Practice and Attachment R, endeavor to construct and place into service sufficient transfer capability to deliver the Network Customer's Network Resources to serve its Network Load on a basis comparable to the Transmission Provider's delivery of its own generating and purchased resources to its Native Load Customers. 28.3 Network Integration Transmission Service: The Transmission Provider will provide firm transmission service over its Transmission System to the Network Customer for the delivery of capacity and energy from its designated Network Resources to service its Network Loads on a basis that is comparable to the Transmission Provider's use of the Transmission System to reliably serve its Native Load Customers. 28.4 Secondary Service: The Network Customer may use the Transmission Provider's Transmission System to deliver energy to its Network Loads from resources that have not been designated as Network Resources. Such energy shall be transmitted, on an as-available basis, at no additional charge. Secondary service shall not require the filing of an Application for Network Integration Transmission Service under the Tariff. However, all other requirements of Part III of the Tariff (except for transmission rates) shall apply to secondary service. Deliveries from resources other than Network Resources will have a higher priority than any Non-Firm Point-To-Point Transmission Service under Part II of the Tariff. Xcel Energy Operating Companies Page No. 5 FERC Electric Tariff, Second Revised Volume No. 1 28.5 Real Power Losses: Real Power Losses are associated with all transmission service. The Transmission Provider is not obligated to provide Real Power Losses. The Network Customer is responsible for replacing losses associated with all transmission service as calculated by the Transmission Provider. The applicable Real Power Losses are as follows: For Service on the NSP Transmission System: 2.4% For Service on the PSCo System: Demand Energy Transmission System: 2.20% 1.70% Distribution System Primary Voltage: 3.75% 2.07% For Service on the SPS System: Demand Energy Transmission System: 3.3370% 2.6493% Distribution System Primary Voltage: 10.0501% 7.1863% The loss factors for Direct Assignment Facilities shall be determined on a case by case basis. 28.6 Restrictions on Use of Service: The Network Customer shall not use Network Integration Transmission Service for (i) sales of capacity and energy to non-designated loads, or (ii) direct or indirect provision of transmission service by the Network Customer to third parties. All Network Customers taking Network Integration Transmission Service shall use Point-To-Point Transmission Service under Part II of the Tariff for any Third-Party Sale which requires use of the Transmission Provider's Transmission System. The Transmission Provider shall specify any appropriate charges and penalties and all related terms and conditions applicable in the event that a Network Customer uses Network Integration Transmission Service or secondary service pursuant to Section 28.4 to facilitate a wholesale sale that does not serve a Network Load. Xcel Energy Operating Companies Page No. 6 FERC Electric Tariff, Second Revised Volume No. 1 37 Nature of Balancing Authority Services Version: 0.2.2 Effective: 1/1/2014 37 Nature of Balancing Authority Services 37.1 Requirement to Provide and Obtain BA Services: An Ancillary Service Customer (ASC) shall purchase from the BA Operator, self-provide, or purchase from a third party BA Services for all load or generating units in the PSCo BAA. The ASC shall obtain BA Services pursuant to the rates, terms, and conditions specified in this Part IV and the provisions of the Service Agreement set forth as Attachment T of this Tariff. 37.2 Source and Acquisition of BA Services: (a) The BA Operator shall provide and the ASC is required to purchase Scheduling, System Control, and Dispatch Service as provided in Schedule 1 to this Tariff. (b) The BA Operator shall also offer to provide the following BA Services: (i) Reactive Supply and Voltage Control from Generation Sources as specified in Schedule 2 to this Tariff; (ii) Regulation and Frequency Response Service as specified in Schedule 3; (iii) Energy Imbalance Service as specified in Schedule 4; (iv) Operating ReserveSpinning Reserve Service as specified in Schedule 5; (v) Operating ReserveSupplemental Reserve Service as specified in Schedule 6; (vi) Flex Reserve Service as specified in Schedule 16; (vii) Generator Imbalance service as specified in Schedule 9, and (viii) real power losses. (c) The ASC shall designate the BA Services to be provided by the BA Operator in the service agreement between the ASC and BA Operator, in the form provided in Attachment T. The ASC must acquire such BA Services from the BA Operator unless the ASC demonstrates to the satisfaction of the BA Operator that the ASC has acquired such BA Services from another source, either by self-providing or purchasing from a third party. (d) Each ASC subject to this Part IV must specify on the Service Agreement set forth in Attachment T and required under this Part IV (a) those BA Services the ASC will purchase from the BA Operator, and (b) the loads designated for such BA services. If the Balancing Authority Operator and Ancillary Service Customer disagree on the load to be designated as subject to Part IV, the Balancing Authority Operator shall file the unexecuted Service Agreement with the Commission. (e) Each ASC subject to this Part IV must provide an attestation annually that specifies the amounts of VER generation and non-VER generation owned or controlled by the ASC. 37.3 Sufficiency of Balancing Authority Services: The BA Operator shall determine the sufficiency of any BA Service obtained by an ASC pursuant to the requirements of this Part IV. In the event of a dispute, the Dispute Resolution provisions of Section 12 shall apply. Xcel Energy Operating Companies Page No. 7 FERC Electric Tariff, Second Revised Volume No. 1 37.4 Real Power Losses: Real Power Losses are associated with all transmission transactions scheduled by ASCs within the PSCo BAA. The BA Operator is not obligated to provide Real Power Losses. The ASC is responsible for replacing losses associated with all BA Services as calculated by the BA Operator. The ASCs Real Power Loss obligation will be determined based on the location of the ASCs metered points on the transmission system; however, the exact identification of loss obligations for ASCs will be determined at the time the ASCs form of service agreement is executed. The ASC will be charged for Real Power Losses on all transactions that are delivered across the BAA to serve the ASCs load, less any losses supplied to the BA or billed to the ASC under Part II or Part III of this Joint OATT or pursuant to any other agreement. The applicable Real Power Losses are as follows For Service in the PSCo BAA: Demand Energy 2.20% 1.70% 37.5 Service Agreements: The BA Operator shall offer a standard form of Service Agreement to an ASC, as set forth in Attachment T to this Tariff. An executed Service Agreement completed consistent with the requirements of this Part IV will be reported to the Commission in compliance with applicable Commission regulations. If an ASC does not execute the Service Agreement required by this Part IV, the BA Operator may file an unexecuted Service Agreement with the Commission. The BA Operator shall file any unexecuted Service Agreement with the Commission by the earlier of (i) thirty (30) days after receiving a request from the ASC to file an unexecuted Service Agreement or (ii) thirty (30) days after service commences. 37.6 No Transmission Service Provided: The provision of BA Services under this Part IV does not include or constitute a commitment by Transmission Provider to provide any other type of Service under this Tariff. 2016-4-18_PSCoLossesStlmtComp-TransmtlLtr-ER15-266I. BackgroundII. Reason for the FilingIII. Correspondence and CommunicationsIV. Effective DateV. Conclusion2016-4-18_PSCoLossesStlmtComp-MarkedTariffD003 15-Service Availability 0.2.1-RedlineE001 28-Nature Ntwk Itegration 0.2.1-RedlineF002 37-Nature of Bal Auth Ancil Svcs 0.2.2-Redline2016-4-18_PSCoStlmtLossesComp-CleanTariff15 Service Availability Version: 0.2.1 Effective: 1/1/201428 Nature of Network Integration Transmission Service Version: 0.2.1 Effective: 1/1/201437 Nature of Balancing Authority Services Version: 0.2.2 Effective: 1/1/2014