market power mitigation

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FERC Greenlights LS Power to Sell CPower, 12.9 GW to NRG

FERC approved LS Power’s deal to sell 12.9 GW of its gas generation in PJM, NYISO and ISO-NE, as well as its 6-GW demand response business, CPower, to NRG Energy for $12 billion.

CAISO
CAISO Price Formation Proposal Looks to Reduce ‘Unnecessary’ Market Mitigation

After years in the making, CAISO released a price formation proposal intended to reduce “unnecessary” market power mitigation, strengthen reliability and provide consistent pricing incentives in the WEIM and future EDAM.

NRG
NRG, PJM IMM Disagree on LS Power Deal’s Market Power Impact
PJM's IMM is pushing for limits on NRG after it completes its deal with LS Power to prevent its exercise of market power, but the firm argues they are unneeded and the Monitor has failed to show its math
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
FERC Approves Constellation Purchase of Calpine with Conditions
FERC approved Constellation's purchase of Calpine, which will create an even bigger IPP with nearly 60 GW around the country, with the biggest share of that in PJM.
ISO-NE
NEPOOL Markets Committee Briefs: July 8-9, 2025

ISO-NE provided updates on its proposals for generator retirements, market power mitigation, and resource qualification and reactivation.

Idaho Power
FERC Launches Section 206 Proceeding for Idaho Power
Idaho Power must prove it does not have unjust market power in its balancing authority area, FERC ruled.
NRG Energy
PJM Monitor Calls for Bidding Limits on NRG Generation, DR in LS Deal
PJM's Independent Market Monitor asked FERC to impose behavioral constraints on NRG Energy's proposed purchase of power plants and demand response from LS Power.
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.


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