SPP Website

SPP Member List

Cost-Benefit Analysis

Map of SPP

Founded as an 11-member tight power pool in 1941, Southwest Power Pool (SPP) achieved RTO status in 2004, ensuring reliable power supplies, adequate transmission infrastructure, and competitive wholesale electricity prices for its members. Based in Little Rock, Ark., SPP manages transmission in portions of fourteen states: Arkansas, Iowa, Kansas, Louisiana, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas and Wyoming. Its membership is comprised of investor-owned utilities, municipal systems, generation and transmission cooperatives, state authorities, independent power producers, power marketers and independent transmission companies.

In 2007, SPP began operating its real-time Energy Imbalance Service (EIS) market. In the same year, SPP became a FERC-approved Regional Entity. The SPP Regional Entity serves as the reliability coordinator for the NERC region, overseeing compliance with reliability standards.

In March 2014, SPP implemented its Integrated Marketplace that includes a day-ahead energy market, a real-time energy market, and an operating reserve market. SPP’s Integrated Marketplace also includes a market for Transmission Congestion Rights. The SPP Integrated Marketplace co-optimizes the deployment of energy and operating reserves to dispatch resources on a least-cost basis.

In 2015, SPP expanded its footprint incorporating the Western Area Power Administration – Upper Great Plains (WAPA-UGP) region, the Basin Electric Power Cooperative, and the Heartlands Consumer Power District. The expansion nearly doubled SPP’s service territory by square miles, adding more the 5,000 MW of peak demand and over 7,000 MW of generating capacity. WAPA-UGP is the first federal power marketing administration to join an RTO.

List of Orders

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Docket No. Date Issued Company Title
ER18-2404-000 03/18/2021 Southwest Power Pool, Inc. Order Denying Waiver Request
ER19-477-000 03/18/2021 Southwest Power Pool, Inc. Order Denying Waiver Request 
ER18-99-004 02/18/2021 Southwest Power Pool, Inc. Settlement Order Rejecting Contested Settlement
ER20-945-002 02/18/2021 Southwest Power Pool, Inc. Letter Order on Compliance Filing
ER15-2115-008 02/18/2021 Southwest Power Pool, Inc. Letter Order Approving Uncontested Settlement Agreement

 

Docket No. Date Issued Company Title
ER18-2358-004 11/19/20 Southwest Power Pool, Inc Order Addressing Arguments Raised on Rehearing
ER20-644-000 07/16/20  Southwest Power Pool, Inc. Order on Compliance
ER20-1617-000 07/16/20  Southwest Power Pool, Inc. Order Accepting Tariff Revisions
ER19-460-005 07/16/20  Southwest Power Pool, Inc. Order on Compliance
ER19-2522-002 07/16/20  Southwest Power Pool, Inc. Order on Compliance
ER19-1954-001 06/18/20 Southwest Power Pool, Inc. Order on Compliance
EL19-92-000 06/18/20 Southwest Power Pool, Inc.  Order on Section 206 Investigation 
EL16-91-001 05/21/20 Southwest Power Pool, Inc.  Order Granting Rehearing and Dismissing Compliance Filing 
ER15-2115-004  02/20/20 Southwest Power Pool, Inc. Order on Rehearing and Clarification
ER15-2028-003  02/20/20 Southwest Power Pool, Inc. Order on Rehearing and Clarification
ER16-1341-003  02/20/20 Southwest Power Pool, Inc. Order Denying Motion
ER16-1341-004  02/20/20 Southwest Power Pool, Inc. Order on Rehearing and Clarification
ER19-1954-000  01/23/20 Southwest Power Pool, Inc. Order on Complaints
EL19-62-001  01/23/20 City Utilities of Springfield, Missouri
v.
Southwest Power Pool, Inc.
Order on Rehearing and Clarification

 

 

Docket No. Date Issued Company Title
EL19-11-001  12/19/19 American Wind Energy Association and The Wind Coalition
v.
Southwest Power Pool, Inc.
Order on Rehearing, Compliance, and Section 205 Filing
ER19-2681-000  11/21/19 Southwest Power Pool, Inc. Order Accepting Tariff Revisions
ER19-1910-000  11/21/19 Southwest Power Pool, Inc. Letter Order Approving Uncontested Settlement Agreement
ER19-1357-000,
ER18-2358-001
 
10/17/19 GridLiance High Plains LLC, and Southwest Power Pool, Inc. Order Establishing Hearing and Settlement Judge Procedures and Consolidating Proceedings
ER19-460-001  10/17/19 Southwest Power Pool, Inc. Order on Compliance Filing and Instituting Section 206 Proceeding
ER19-2273-000  09/19/19 Southwest Power Pool, Inc. and Sunflower Electric Power Corporation Order Accepting Proposed Tariff Revisions and Establishing Hearing and Settlement Judge Procedures
EL17-89-000  09/19/19 American Electric Power Service Corporation v. Midcontinent Independent System Operator, Inc. and Southwest Power Pool, Inc. Order Establishing Briefing Procedures
EL18-26-000  09/19/19 EDF Renewable Energy, Inc. v. Midcontinent Independent System Operator, Inc., Southwest Power Pool, Inc. and PJM Interconnection, L.L.C Order on Complaint and Technical Conference
EL17-89-000  09/19/19 American Electric Power Service Corporation v. Midcontinent Independent System Operator, Inc. and Southwest Power Pool, Inc. Order On Complaint And Establishing Refund Effective Date
ER15-2115-000  06/20/19 Southwest Power Pool, Inc. Order on Contested Settlement
ER15-2028-000  06/20/19 Southwest Power Pool, Inc. Order on Contested Settlement
ER17-1568-002  04/18/19 Southwest Power Pool, Inc. Order Granting Requests for Extension of Effective Dates
EL19-11-000  04/18/19 American Wind Energy Association The Wind Coalition v. Southwest Power Pool, Inc. Order on Complaint
ER18-2318-000  03/21/19 Southwest Power Pool, Inc. Order on Compliance filing for Order No. 844
ER16-204-004  01/17/19 Southwest Power Pool, Inc. Opinion No. 562-A; Order Denying Rehearing

 

 

Docket No. Date Issued Company Title
ER19-166-000  12/20/18 Southwest Power Pool, Inc. Letter Order on Tariff Revisions
EL18-194-000  12/20/18 Nebraska Public Power District
v.
Tri-State Generation and Transmission Association, Inc. and Southwest Power Pool, Inc.
Order Denying Complaint
ER18-1632-001  10/18/18 Southwest Power Pool, Inc. Order Accepting Tariff Revisions
EL16-110-002, EL17-69-001  05/17/18 Buffalo Dunes Wind Project, LLC, Enel Green Power North America, Inc., Alabama Power Company, and Southern Company Services, Inc. v. Southwest Power Pool, Inc. Order Denying Rehearing
ER17-1575-002  05/17/18 Southwest Power Pool, Inc. Order Denying Rehearing
ER16-204-001  05/17/18 Southwest Power Pool, Inc. Opinion No. 562
Order On Initial Decision
ER17-2229-001  04/19/18 Southwest Power Pool, Inc. Order Denying Rehearing
ER18-99-000  03/15/18 Southwest Power Pool, Inc. Order Accepting Proposed Tariff Revisions, Subject to Refund, and Establishing Hearing and Settlement Judge Procedures
EL18-20-000  03/15/18 Indicated SPP Transmisson Owners
v.
Southwest Power Pool, Inc.
Order Denying Complaint
ER17-2495-000  01/18/18 Southwest Power Pool, Inc. Letter Order Approving Repricing Request

 

 

Docket No. Date Issued Company Title
ER17-426-000, ER17-426-002  12/21/17 Southwest Power Pool, Inc. Letter Order Approving Uncontested Settlement
ER17-1741-000, ER17-1741-001  12/21/17 Southwest Power Pool, Inc. Letter Order Approving Uncontested Settlement
ER17-2027-000, ER17-2027-001  12/21/17 Southwest Power Pool, Inc. Order Accepting Tariff Revisions
ER18-208-000  12/21/17 Southwest Power Pool, Inc. Order Accepting Service Agreement
EL18-35-000  12/21/17 Southwest Power Pool, Inc. Order Instituting Section 206 Proceeding and Paper Hearing
ER17-1482-000  11/16/17 Southwest Power Pool, Inc. Order Accepting Tariff Revisions, Subject to Condition
ER17-889-000  11/16/17 Southwest Power Pool, Inc. Order on Service Agreement
EL16-91-000, EL18-19-000  10/19/17 Southwest Power Pool, Inc. Order On Paper Hearing And Instituting Section 206 Proceeding, Establishing Refund Effective Date, And Consolidating Proceedings
ER17-1575-000, -001  10/19/17 Southwest Power Pool, Inc. Order Rejecting Tariff Revisions And Denying Request For Rehearing And Clarification
EL17-69-000  10/19/17 Buffalo Dunes Wind Project, LLC, Enel Green Power North America, Inc., Alabama Power Company, and Southern Company Services, Inc. Vs Southwest Power Pool, Inc. Order on Complaint
EL17-11-000  10/19/17 Alabama Power Company v. Southwest Power Pool, Inc. Order on Complaint
ER16-1286-002, EL16-110-001  10/19/17 Southwest Power Pool, Inc. Order Granting Clarification
EL16-110-000  10/19/17 Southwest Power Pool, Inc. Order on Paper Hearing
ER17-772-000, -001, -002  09/20/17 Southwest Power Pool, Inc. Order On Compliance Filing
ER17-520-000  09/20/17 Southwest Power Pool, Inc. Order Accepting Tariff Revisions
ER17-1333-000  09/20/17 Southwest Power Pool, Inc. Order on Tariff Filing
ER16-204-001  02/23/17 Southwest Power Pool, Inc. Initial Decision

 

 

Docket No. Date Issued Company Title
ER12-959-007  07/21/16 Southwest Power Pool, Inc. Order On Remand
ER16-791-000  07/21/16 Southwest Power Pool, Inc. Order Granting In Part, And Denying In Part, Motion For Clarification
EL16-91-000  07/21/16 Southwest Power Pool, Inc. Order Instituting Section 206 Proceeding and Commencing Paper Hearing Procedures and Establishing Refund Effective Date
ER16-1774-000  07/21/16 Southwest Power Pool, Inc. Order Accepting Tariff Revisions Implementing Formula Rates and Establishing Hearing and Settlement Judge Procedures
ER16-13-002  07/21/16 Southwest Power Pool, Inc. Letter Order on Compliance Filing
ER16-209-001  06/16/16 Southwest Power Pool, Inc. Order Granting Clarification and Denying Rehearing
ER14-2850-006 and ER14-2851-006  05/19/16 Southwest Power Pool, Inc. Letter Order Approving Settlement
EL12-60-001 and ER12-1586-002, -003  04/21/16 Southwest Power Pool, Inc.,
Western Area Power Administration,
Basin Electric Power Cooperative,
Heartland Consumers Power District

and

Southwest Power Pool, Inc.
Order on Clarification, Rehearing, and Compliance
ER14-2850-004 and ER14-2851-004  04/21/16 Southwest Power Pool, Inc. Letter Order Approving Settlement
ER16-139-000, -001  03/17/16 Southwest Power Pool, Inc. Letter Order Accepting Tariff Revisions
ER16-636-000  03/17/16 Southwest Power Pool, Inc. Order Granting Tariff Waiver Request
ER14-1174-000, EL11-34-002, EL14-21-000 & EL14-30-000  01/21/16 Midcontinent Independent System Operator, Inc.

v.

Southwest Power Pool, Inc.
Letter Order on Uncontested Settlement
ER14-1174-001, EL11-34-003, EL14-21-001 & EL14-30-001  01/21/16 Midcontinent Independent System Operator, Inc.

v.

Southwest Power Pool, Inc.
Order Dismissing Requests For Rehearing As Moot

 

 

This page was last updated on July 14, 2022