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December 14, 2025

Midcontinent Independent System Operator (MISO)

Entergy
Entergy Rebuts Criticism of its Tx Planning
Entergy countered claims recently made to FERC that it is purposefully undermining transmission planning in MISO South.
©RTO Insider LLC
MISO, SPP Regulators Finish Pancaking Strawman
A working group inventorying rate pancaking issues on the MISO-SPP seams have developed a strawman with four recommendations to improve transmission service.
Entergy
SREA Criticizes Lack of MISO South Planning in FERC Tx Proceeding
SREA said while MISO may have a robust transmission planning process, FERC should know that the RTO’s South region does not share in it.
LS Power
Court Blocks LS Power’s Attempts for More Competitive MISO Tx Projects
LS Power was unsuccessful with the D.C. Circuit Court of Appeals in separate attempts to force MISO to open more projects to competition.
Pattern Energy
MISO Rejects Call for Penalty-free Queue Exits
MISO is resisting clean energy developers’ calls to allow penalty-free queue withdrawals for generation projects bogged down by SPP’s affected system studies.
MISO
MISO Pledges Review of On-hold Stakeholder Ideas
MISO is refreshing its longstanding “parking lot” of improvement ideas submitted to the grid operator; some ideas have been in a holding pattern for years.
Pro Signs and Graphics
Entergy CEO Denault Stepping Down in 2023
Entergy announced that chairman and CEO Leo Denault will step down early next year after a decade at the helm of the utility.
SPP Briefs: Week of Aug. 8, 2022
Canadian utility SaskPower and SPP have signed a 20-year agreement to more than quadruple transmission capacity between the two entities.
ACORE
ACORE Panel Lauds MISO Tx Benefits Process
A panel convened by the American Council on Renewable Energy largely agreed that MISO’s transmission benefits process could be a blueprint for the country.
© RTO Insider LLC
MISO, SPP Identify Hotspots for Smaller Interregional Tx Projects
MISO and SPP say they have plenty of constrained flowgates that could become candidates for smaller, cross-border transmission projects.

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