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December 5, 2025

Markets

ISO-NE
Unexpected Generation Loss Triggers Capacity Deficiency in ISO-NE
ISO-NE declared a capacity deficiency after an unexpected loss of generation left the region short of its operating reserve requirements.
ERCOT
ERCOT Stakeholders Endorse $9.4B 765-kV Build
ERCOT stakeholders endorsed a 1,109-mile, single-circuit 765-kV backbone project that is projected to cost nearly $9.4 billion in capital costs, making it the largest initiative in decades.
© RTO Insider LLC
PJM Stakeholders to Explore DR Performance
The PJM Markets and Reliability Committee endorsed by acclamation an issue charge to explore how the performance of demand response and price-responsive demand resources can be improved.
© RTO Insider LLC
FERC OKs Extension of WEIM Assistance Energy Transfer Feature
FERC granted CAISO's request to remove the sunset date on the Western Energy Imbalance Market Assistance Energy Transfer feature, which has been used by more than 10 of the market’s balancing area authorities in recent years.
IESO
IESO Tweaking Make-whole Payments for Operating Reserves
IESO proposed rule changes to eliminate unwarranted make-whole payments to operating reserve providers under Ontario’s nearly eight-month-old Market Renewal Program.
© 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.
Xcel Energy
FERC Ends Nonpublic Investigations into Winter Storm Uri
FERC has closed its enforcement investigations into possible unlawful activity related to 2021’s Winter Storm Uri, just a few months before the statute of limitations on the issue is to expire.
© RTO Insider 
PJM Stakeholders Reject All CIFP Proposals on Large Loads
The PJM Members Committee voted against each of the dozen proposals brought to address rising data center load as part of the RTO’s Critical Issue Fast Path process.
Shutterstock
Voltus, Mission:data Argue Data Access Issues Stymie Residential DR in PJM
Voltus and Mission:data continued to make their case that data access is preventing PJM from tapping into residential demand response, which is just a fraction of the market now.
Alcoa
FERC Gives Go-ahead on Tougher MISO DR Testing Rules
FERC greenlit MISO’s plan to require its demand response to make real-world demand reductions to fulfill the RTO’s testing requirements.

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