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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.
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SPP Board of Directors/Members Committee Briefs: Aug. 5, 2025
SPP approved its seventh competitive project under FERC Order 1000, a 19-mile, 115-kV new transmission line with an estimated cost of $45.5 million in the Texas-New Mexico area.
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SPP Board Sets Aside 765-kV Costs, Large Load Policy
SPP’s Board of Directors agreed to defer action on a 765-kV transmission project with a ballooning cost estimate and staff’s large load integration policy, both the source of much stakeholder discussion.
ITC Holdings
FERC Approves SPP Change to IC Interim Service
FERC approved an SPP tariff change that allows interconnection customers without a pending request to ask for interim service when the study cluster’s window is closed.
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SPP Regional State Committee Briefs: Aug. 4, 2025

SPP state regulators have approved a policy that sets criteria for developing joint transmission projects with other RTOs to cost-effectively address persistent market-to-market (M2M) congestion.

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Tri-State Plan Includes Renewables, Batteries and Gas
Colorado regulators have approved Tri-State Generation and Transmission Association’s plan to add 1,657 MW of new resources from 2026 to 2031, despite objections about the inclusion of a new natural gas plant.
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SPP Celebrates Novel Consolidated Planning Process
SPP’s Board of Directors has approved a tariff change establishing an integrated, three-year transmission planning cycle that represents a “first-in-the-country” mechanism.
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SPP’s Rew to Retire After 35 Years in Operations
SPP says its longest-tenured employee, Senior Vice President of Operations Bruce Rew, will retire in December and be replaced by C.J. Brown.
SPP
Colo. PUC Approves PSCo’s Markets+ Participation
The Colorado PUC voted to approve Public Service Company of Colorado's plans to join SPP’s Markets+, with commissioners split on whether the move is a step toward or away from full RTO participation.
WER Architects-Planners
SPP ERAS GI Requests to Begin in September
SPP notified stakeholders that the one-time expedited resource adequacy study process will open its window for fast-track review requests will open in September 2025.
SPP
FERC Approves SPP’s ERAS Process, Accreditation
SPP is celebrating several recent FERC orders that have strengthened its resource adequacy framework that it says will secure a “reliable energy future” for its region.

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