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December 5, 2025

capacity deficiency

ISO-NE
ISO-NE: Resources Overperformed During June Capacity Scarcity Event
Pay-for-Performance credits accumulated during capacity scarcity conditions June 24 totaled about $114 million, ISO-NE's COO told the NEPOOL Participants Committee.
Constellation
NEPGA Seeks Relief for ‘Improper’ Pay-for-Performance Costs in ISO-NE

The New England Power Generators Association is seeking immediate action from FERC to address what it calls “serious flaws” in the design of ISO-NE’s pay-for-performance mechanism.

Shutterstock
Behind-the-meter Solar Shines in ISO-NE Capacity Deficiency Event

ISO-NE’s capacity deficiency event demonstrated the significant benefits of solar resources, along with their limits in displacing fossil resources during peak load periods.

ISO-NE
Extreme Heat Triggers Capacity Deficiency in New England

ISO-NE declared a capacity deficiency, implemented a Power Caution and took extra actions to maintain grid reliability during what may have been the highest peak load since 2013, driven by extreme heat and humidity.

PJM
PJM Updates Proposal as CIFP Nears End
PJM updated its Critical Issue Fast Path proposal, while several additional stakeholder presentations are scheduled for the remaining two meetings before they vote on packages.
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Canadian Wildfires Trigger ISO-NE Capacity Deficiency
Canadian wildfires caused just the third ISO-NE capacity deficiency since 2016, demonstrating the increasing reliability threat of climate change.

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