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December 5, 2025

coordinated system plan (CSP)

Organization of MISO States
MISO, SPP Eye Small Interregional Tx Projects
MISO and SPP said they will likely establish a smaller interregional project type, which could produce the two's first cross-border transmission project.
No MISO-SPP Joint Study in 2021
MISO, SPP won’t do a major interregional transmission study in 2021; they are focusing on a joint targeted interconnection queue study.
4th Time No Charm for MISO-SPP Interregional Study
MISO and SPP have once again failed to identify any beneficial cross-border transmission projects after a fourth interregional study.
MISO, SPP Regulators Ponder Monitors’ Recommendations
MISO’s and SPP’s market monitors presented their last report to state regulators working to improve the RTOs’ interregional coordination.
MISO, SPP Close to Ruling out Joint Projects Again
MISO and SPP appear to have come up empty once again after a fourth study failed to detect a joint transmission project.
SPP Seams Steering Committee Briefs: Aug. 20, 2020
SPP identified a couple potential joint projects with MISO but none with Associated Electric Cooperative Inc.
SPP Seams Steering Committee: April 2, 2020
SPP and MISO are picking up the pace of developing their 2020 coordinated system plan, staff told the Seams Steering Committee.
MISO, SPP Staff Recommend 2020 Joint Study
MISO and SPP are both recommending the RTOs take another stab this year at a coordinated system plan in their elusive pursuit of an interregional project.
SPP Seams Steering Committee Briefs: Feb. 20, 2020
SPP is working with both MISO and AECI to develop coordinated system plans in the search for joint projects, staff told the RTO’s Seams Steering Committee.
Interregional Projects May Become Reality for SPP, MISO
MISO and SPP are optimistic the RTOs will finally agree on an interregional transmission project, they said at GCPA's 7th annual MISO South Conference.

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