New England expected to have sufficient electricity supplies this winter
ISO New England uses numerous forecasts and analyses to project weather, expected demand for electricity, and the supply available to meet that demand.
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ISO Minute: Explore the energy supply forecast that’s key to winter grid operations
Mallory Waldrip shares her work compiling the 21-Day Energy Assessment Forecast and Report, a key tool for ISO-NE’s winter operations.
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- Features & Interviews
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- ISO Minute, system operations
Video, presentation available from 2nd GE MARS technical session
The technical session explored General Electric’s Multi-Area Reliability Simulation tool.
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- Market Participant Information
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- training
Cross-border collaborations: ISO-NE staff share expertise at November events
A roundup of ISO-NE staff speaking engagements in November 2025.
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- Events
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- ISO leadership
Fall 2025 update on regional transmission investment now available; 4 projects under construction in New England
Three upgrades have been placed into service since June 2025, according to the latest update to the Regional System Plan Project List.
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- Publications
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- transmission, transmission planning
Monthly wholesale electricity prices and demand in New England, October 2025
Wholesale prices were up in both the day-ahead and the real-time markets in October.
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- Inside ISO New England
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- monthly prices
Power system reliability maintained during Sunday evening reserve shortage
ISO-NE declared a Power Caution due to an unexpected loss of generation. This was not a system emergency, and ended after about 80 minutes.
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- Inside ISO New England
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- system operations
ISO-NE releases summary of proposals submitted under longer-term transmission planning effort
At the direction of the New England states, the ISO issued the request for proposals to enhance reliability and market efficiency, and to better integrate affordable resources.
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- Inside ISO New England
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- transmission, transmission planning
Internal Market Monitor releases summer 2025 quarterly report
Despite lower demand, wholesale electricity costs increased due to higher fuel costs.
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- Publications
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- quarterly prices
ISO-NE annual open board meeting showcases 2025 Regional System Plan
The meeting featured remarks from board members, senior management, and the public.
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- Events
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- regional system plan
New England’s Wholesale Energy Markets: Training materials now available
The training session for power industry professionals was held Oct. 29-30.
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- Market Participant Information
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- training