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December 5, 2025

Southwest Power Pool (SPP)

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MISO Says JTIQ Tx Portfolio Stands — for Now
The $1.6 billion Joint Targeted Interconnection Queue transmission portfolio of SPP and MISO remains in play even though the Department of Energy has reneged on almost a half billion dollars in funding.
SPP
SPP Wants to Defer $7B in 765-kV Projects to 2026
SPP staff have reiterated their position to defer part of the RTO's planned 765-kV transmission overlay, setting aside about $7 billion in regional projects from its 2025 transmission assessment.
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MISO IMM Recommends Changes to Handling of Midwest-South Tx Constraint

MISO’s Independent Market Monitor has called for the RTO to change how it manages its Midwest-South transfer limit in ways he contends will open line capacity and reduce costs for Midwest market participants.

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FERC Ends Show-cause over SPP FTR Changes
FERC terminated a show-cause proceeding against SPP and accepted the RTO’s proposal to revise its collateral requirements for financial transmission rights by including an additional re-marking mechanism for seasonal products.
DOE
DOE Terminates $7.56B in Energy Grants for Projects in Blue States
The U.S. Department of Energy has terminated 321 grants totaling $7.56 billion for 223 projects, apparently targeting Democratic-leaning states.
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.
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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.
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.

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