Southwest Power Pool (SPP)

Yes Energy using Yes Energy’s Infrastructure Insights data
How ISOs and RTOs are Addressing Large Load Growth
Data center-fueled demand growth continues to soar while reserve margins continue to shrink. Meanwhile, the timelines for building load versus building generation and transmission are wildly out of sync.
© RTO Insider LLC
SPP Stakeholders Trim $2.5B from 2025 Transmission Plan
SPP stakeholders have endorsed the RTO's 10-year transmission plan and some of its proposed 765-kV lines, trimming about $2.5 billion in costs from the portfolio.
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FERC Approves SPP’s New Provisional Load Process
FERC approved SPP’s tariff change to offer a provisional load interconnection process so the grid operator can study potential data centers and other large loads when there isn’t available power for the new facilities.
MISO, SPP
SPP Moving Forward with JTIQ Transmission Projects
SPP plans to continue working the Joint Targeted Interconnection Queue’s portfolio of five 345-kV projects on its seam with MISO, despite the U.S. Department of Energy’s threat to pull $464 million in previously granted funds.
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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.
© RTO Insider 
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.

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