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December 8, 2025

ISO-NE

ISO New England Inc. is a regional transmission organization that oversees the operation of the electricity transmission system, coordinates wholesale electricity markets, and manages power system planning for the states of Connecticut, Rhode Island, Massachusetts, Vermont, New Hampshire, and most of Maine.
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Rosner Voices Support for Large Load ANOPR
FERC Commissioner David Rosner was supportive of the Department of Energy’s request that the commission assert authority over the interconnection of large loads while emphasizing the importance of collaboration and consensus-building in response to concerns raised by state regulators.
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NEPOOL Supports First Phase of ISO-NE Capacity Market Reform
The NEPOOL Participants Committee voted nearly unanimously to support the first phase of ISO-NE’s capacity auction reform project.
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New England Energy Executives Debate Markets, Affordability
An increasing political anxiety around energy affordability permeated debates about wholesale market changes, federal policy and demand growth at the annual New England Energy Summit.
Granite Shore Power
Aging Oil Plants Face Unclear Future in New England as Winter Risks Rise
In New England, increasing winter reliability concerns are driving questions about how long the region’s aging fleet of oil-fired power plants can, or should, remain on the system.
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.
Shutterstock
ISO-NE Outlines Accreditation for Active, Passive Demand Resources
ISO-NE outlined proposed capacity accreditation for active and passive demand capacity resources at the NEPOOL Reliability Committee.
ISO-NE
ISO-NE Provides More Detail on Responses to LTTP Procurement
ISO-NE published a summary of proposals submitted for its first longer-term transmission planning procurement, which is aimed at reducing transmission constraints.
Analysis Group
ISO-NE Introduces Approach to Modeling Gas Constraints
ISO-NE outlined its planned approach for accounting for resources’ gas supply limitations in its new capacity accreditation framework at a NEPOOL Markets Committee meeting.
ISO-NE
NEPOOL Committees Support ISO-NE Prompt Capacity Auctions
NEPOOL technical committees voted in favor of ISO-NE’s proposal to adopt a prompt capacity auction and update the RTO’s resource retirement process.
NOAA
ISO-NE Forecasts Minimal Shortfall Risk for Upcoming Winter
ISO-NE’s probabilistic modeling indicates there is minimal risk of shortfall in the upcoming winter, COO Vamsi Chadalavada told the NEPOOL Participants Committee.

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