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March 9, 2026

NEPOOL Markets Committee

ISO-NE
ISO-NE Provides Updates on CAR Impact Analysis Methodology
ISO-NE updated stakeholders on its methods for assessing the impacts of its proposed capacity market overhaul as it prepares to release the initial results of the long-awaited analysis.
ISO-NE
ISO-NE Starts Work on Day-ahead Ancillary Services Market Changes
With costs associated with ISO-NE’s new day-ahead ancillary services market far exceeding expectations, the RTO is working to fast-track changes to improve the efficiency of the market in time for next winter.
JERA
ISO-NE Details Inputs for Capacity Auction Reform Impact Analysis
ISO-NE outlined its methodology for analyzing potential effects of its capacity auction reform project, detailing inputs for the near- and longer-term base cases and potential factors to be considered in sensitivity analyses.
ISO-NE
Costs of ISO-NE Day-ahead Ancillary Services Higher than Expected
ISO-NE’s new day-ahead ancillary services market added about $258 million in incremental costs between March and August, equal to 7.6% of total energy market costs.
Analysis Group
ISO-NE Talks CAR Gas Constraints, Seasonal Risk Split, Impact Analysis
ISO-NE continued work on the second phase of its Capacity Auction Reform project, discussing modeling of the region’s gas constraints, seasonal auction design and its approach to evaluating the impacts of the auction changes.
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.
ISO-NE
NEPOOL Members Offer Amendments on ISO-NE Capacity Reform Project
NEPOOL members proposed several amendments to the first phase of ISO-NE’s capacity market overhaul prior to the scheduled Markets Committee vote on ISO-NE’s proposal in November.
Calpine
ISO-NE Kicks off Talks on Accreditation, Seasonal Capacity Changes
ISO-NE kicked off NEPOOL discussions for the second phase of its capacity auction reform project, beginning long-awaited talks on accreditation and seasonal capacity auction changes.
ISO-NE
NEPOOL Nears Vote on 1st Phase of ISO-NE Capacity Auction Reforms

ISO-NE presented the final design details and tariff changes for the first phase of its Capacity Auction Reforms project in preparation for a stakeholder vote in October.


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