Monthly wholesale electricity prices and demand in New England, December 2025
Wholesale prices were up in both the day-ahead and the real-time markets in December.
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Tight operating conditions expected on New England power grid this weekend
The ISO’s latest 21-day forecast indicates the region is still expected to meet consumer demand and required operating reserves.
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- system operations, winter
Video, presentation available from 3rd GE MARS technical session
This session discussed how the Resource Adequacy Assessment model supports existing and proposed capacity market processes.
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Cold weather updates: Week of Jan. 23, 2026
ISO-NE’s system operators and forecasters are continuously monitoring system conditions.
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- system operations, winter
ISO Minute: Designing the capacity market of the future
In this ISO Minute, Chris Geissler explains the changes ahead for the region’s capacity market.
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New England grid saw 134 ‘duck curve’ days in 2025
On sunny days, behind-the-meter solar supplies a significant amount of electricity that otherwise would come from the grid.
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ISO Minute: Meet ISO New England CEO Vamsi Chadalavada
With more than 20 years at the ISO, Vamsi's leadership is grounded in forging consensus, fostering innovation and building trust to ensure the ISO remains an indispensable resource for the region.
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Summits and roundtables: ISO-NE staff share expertise at December events
A roundup of ISO-NE staff speaking engagements in December 2025.
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Distributed energy resource aggregations: Self-paced training available
New market participation models were established under FERC Order No. 2222.
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- distributed energy resources, training
ISO-NE files 1st phase of capacity auction reforms with FERC
The reforms are intended to improve power system reliability and cost-effectiveness as the region’s resource mix evolves.
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- capacity, FERC, wholesale markets