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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.
CAISO
DER Representatives Get a Seat at the Pathways Table
A wide variety of stakeholders — including representatives of the DER sector — will serve as advisers to the Pathways Initiative as it enters its next phases.
SPP
SPP Considers Deferring 765-kV NTCs to 2026
SPP says accelerating load projections will result in a 2025 transmission plan that dwarfs the previous year’s record $7.65 billion portfolio — so much so that it is considering deferring some projects until 2026.
SPP
SPP Names Director to Lead Markets+ Monitoring
SPP named Tim Vigil, chief member relations and strategy officer for Pacific Northwest Generating Cooperative, as director of the Market Monitoring Unit’s office dedicated to Markets+.
Shutterstock
FERC Requires Additional Z2 Filing from SPP
FERC directed SPP to submit a compliance filing for its proposal to unwind credit payment obligations assessed under Attachment Z2 of the SPP tariff for transmission service taken from 2008 to 2016.
© RTO Insider
Monroe’s Western Outreach Pays Dividends for SPP
Former SPP COO Carl Monroe's decades of outreach to Western Interconnection entities are evident in the RTO's various markets and service offerings in the West.
Western Energy
New Challenges Await Pathways After Success in Calif. Legislature
With California passing the bill designed to transition the governance of CAISO’s markets to an independent regional organization, new challenges await the West-Wide Governance Pathways Initiative as the coalition seeks to turn a once-elusive goal into reality.
SPP
SPP Clears GI Queue Backlog, Ready for New Process
SPP says it has cleared its backlog of generator interconnection requests that date back to 2018, paving the way for a transition to its “first-in-the-country” Consolidated Planning Process.
Office of Sen. Jeff Merkley
West Coast Senators Urge Passage of Calif. Pathways Bill
Six Western U.S. senators came out in support of the California legislation needed to transform CAISO’s market into an independent regional energy market, saying in a letter to Gov. Gavin Newsom the bill promises "improved grid reliability and significant energy cost savings.”
© RTO Insider 
SPP Board Approves 765-kV Project’s Increased Cost
SPP’s Board of Directors has approved a pair of contentious measures that were put aside during its August quarterly meeting, a tariff change to integrate and operate high-impact large loads and a revised cost estimate for a 765-kV transmission project.
Tri-State Generation and Transmission Association
Tri-State Seeks FERC Approval for Data Center Load Tariff
Tri-State G&T is seeking FERC’s approval for a new tariff designed to manage the heavy volume of data center load expected to materialize in its member utilities’ service territories over the next decade.

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