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December 5, 2025

prompt capacity auctions

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.
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.

Constellation Energy
ISO-NE Discusses Details of New Prompt Capacity Market
ISO-NE and NEPOOL members discussed how to address market power, tie benefits and resource qualification in a prompt capacity market during a three-day meeting.
Fletcher6, CC BY-SA 3.0, via Wikimedia Commons
ISO-NE Outlines Market Power Mitigation Measures for CAR Project

ISO-NE discussed its plans for preventing and mitigating market power as it overhauls its capacity market and resource retirement processes at a NEPOOL Markets Committee meeting.

ISO-NE
ISO-NE Gives Updates on Prompt, Seasonal Capacity Market Changes
ISO-NE provided stakeholders with a high-level overview of its proposed prompt capacity market design and discussed several other aspects of its capacity auction reform project at a two-day meeting of the NEPOOL Markets Committee.
EMC Enineering Services
ISO-NE Outlines ‘Straw Scope’ of Capacity Market Reforms
ISO-NE responded to stakeholder feedback on its capacity auction reform project at the NEPOOL Markets Committee meeting, providing clarity on the scope of its capacity market overhaul. 
Analysis Group
ISO-NE Moving Forward with Prompt, Seasonal Capacity Market Design
ISO-NE told the NEPOOL Markets Committee that it is proposing a major redesign to its capacity market, moving from a three-years-ahead schedule to a prompt and seasonal design.
Analysis Group
NEPOOL Markets Committee Briefs: Jan. 11, 2024
Analysis Group presented its final report on converting ISO-NE's Forward Capacity Market to a prompt, seasonal construct.
© RTO Insider LLC
NECA Conference Focuses on Changes to ISO-NE Capacity Market
Potential changes to ISO-NE's capacity market include updates to its resource capacity accreditation (RCA) methodology, along with prompt and seasonal capacity market formats.

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