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December 5, 2025

SPP

The Southwest Power Pool is a regional transmission organization that coordinates the reliability of the transmission system and balances electric supply and demand in all or parts of Arkansas, Colorado, Iowa, Kansas, Louisiana, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas and Wyoming.
The Bonneville Power Administration
BPA Sued in 9th Circuit over Day-ahead Market Decision
A group of environmental organizations sued the Bonneville Power Administration in the 9th Circuit Court of Appeals over the agency’s decision to join SPP’s Markets+ instead of CAISO’s Extended Day-Ahead Market.
SPP
SPP Stakeholders Reject Urgent Dispatch Change
SPP stakeholders rejected an urgent proposed tariff revision that would help the grid operator connect generation more quickly.
Invenergy
Missouri AG Opens Inquiry into Grain Belt Express
Missouri's attorney general says he has opened an investigation into Invenergy’s Grain Belt Express transmission project, an 800-mile, HVDC line that has been under development since 2010.
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‘Islanded’ BAs Face Tough Choices in Western Market Future, Experts Say
Although one of the aims of day-ahead markets in the West is to fix a fragmented transmission landscape, some islanded entities will have a tough time navigating seams issues likely to arise as markets take shape, analysts at Aurora Energy Research said during a webinar.
SPP
SPP Launches Markets+ Phase 2 With $150M Secured
SPP secured $150 million in financing and entered the second phase of development for its day-ahead market Markets+, the grid operator announced.
SPP
FERC Accepts Revisions to SPP’s WEIS Market
FERC accepted SPP's tariff revisions to its Western Energy Imbalance Service market that allow market holds for reliability-based concerns when requested by a balancing authority.
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Tri-State Tells Colorado PUC Joining SPP RTO in Public Interest
Tri-State asked the Colorado Public Utilities Commission to find it would be in the public interest for the power supplier to join SPP, saying integrating with the RTO would bring significant benefits.
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SPP Embraces Need for Speed to Meet Change Head-on

SPP has dumped its “evolutionary, not revolutionary” value principle and is working to make things happen quickly in order to meet the pace of industry change.

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MISO-SPP JTIQ Fed Funds Caught Up in DOE Review of Grants

The U.S. Department of Energy is preparing a case-by-case review of all the agency’s financial assistance awards under the Biden administration that it says could have “significant ramifications” for current and prospective recipients.

SPP
SPP, Hitachi Partner to Use AI in Clearing GI Queue

SPP and Hitachi announced a partnership to produce an integrated AI-based solution they say will reduce study-analysis times by 80% in the GI process to meet escalating demand.


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