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December 19, 2025

Transmission Operations

© RTO Insider LLC
MISO to Debut Tx Warning System in 2026
MISO is to roll out a new transmission warning declaration to give its members advanced notice when scarce transmission capacity is raising the risk of load shed.
© RTO Insider 
FERC Report Urges West to Address Looming Market Seams Issues
A new FERC report adds to the growing body of work showing the complexity of confronting the seams issues likely to arise between the West’s two day-ahead markets when compared with challenges at the borders between RTOs and ISOs in the Eastern U.S.
© RTO Insider LLC
Updated: SPP Markets+ Cruising Through Early Development
SPP says the development of its Markets+ day-ahead market in the West is proceeding on time and under budget, with the hard part yet to come.
MISO
MISO Agrees with All 4 IMM State of the Market Recs
MISO said all four recommendations in the Independent Market Monitor’s 2024 State of the Market Report are likely viable.
Entergy
IMM Advises Better Constraint Management After MISO Tx Emergency
MISO’s Independent Market Monitor said a MISO South September transmission emergency shows the RTO needs a better handle on constraint management within its markets.
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UPDATED: Regulators Urge FERC to Honor State Authority over Large Load Interconnections
The National Association of Regulatory Utility Commissioners passed a resolution urging FERC to resist the Department of Energy’s push to give itself jurisdiction over large loads interconnecting with the grid.
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SPP Awards 8th Competitive Project, 3rd in 2025
SPP’s Board of Directors has awarded its eighth competitive project and third in 2025 under FERC Order 1000, a 345-kV upgrade in the Texas Panhandle.
U.S. Forest Service / Benjamin Cossel
How Rising Wildfire Risks Are Rewiring the Future of Power Systems
Grid operators and utilities have a double exposure to the increasingly fire-prone environment: grid assets can cause fires and be damaged by them, says columnist Dej Knuckey.
Lawrence Berkeley National Laboratory
Duke Paper Lays out How FERC Can Make Flexibility for Large Loads Reality
FERC can make large load flexibility a reality through the implementation of the Department of Energy’s Advance Notice of Proposed Rulemaking on large load interconnections, according to a new Nicholas Institute policy paper.
CAISO
Analysis Finds ‘Material’ Parallel Flow Effects in CAISO from PacifiCorp BAA Transactions
In an ongoing high-stakes analysis, CAISO has determined that transactions between PacifiCorp’s two balancing authority areas can “materially” affect parallel flows on certain CAISO transmission constraints.

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