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March 17, 2026

ISO New England (ISO-NE)

Ørsted
Vineyard Completes Construction, Revolution Starts Generation
One New England offshore wind farm has completed construction, and another has begun sending electricity ashore as it finishes construction.
ISO-NE
ISO-NE Details Initial Forecast of Capacity Auction Reforms’ Effects
ISO-NE published initial data on how its proposed capacity market overhaul will affect resource accreditation, providing an indication of how the changes would affect capacity market revenues for different resource types.
ISO-NE
FERC Opens Show Cause Proceeding into ISO-NE Rules for Improper Payments
FERC initiated a show-cause proceeding based on concerns about the lack of provisions in the RTO’s tariff enabling corrections to incorrect payments to or from market participants.
Granite Shore Power
ISO-NE Proposes Cut to Performance Payment Rate
ISO-NE proposed to reduce its performance payment rate by more than 60% in response to concerns that excessive penalties will have unintended consequences for the capacity market.
© RTO Insider 
2025/26 Most Expensive Winter in History of ISO-NE Markets
The winter of 2025/26 was the most expensive winter in the history of ISO-NE’s wholesale markets, driven by the lowest average temperatures in 20 years.
Eversource
FERC Dismisses Challenge to Eversource X-178 Asset Condition Project
FERC dismissed a complaint about a $385 million asset condition project on an Eversource Energy transmission line in New Hampshire, finding it failed to demonstrate any violations by the company.
Fluence
Stakeholders Urge Changes to ISO-NE Surplus Interconnection Rules
Clean energy groups are calling for changes to ISO-NE’s surplus interconnection service rules to use capacity headroom and help some resources avoid lengthy cluster study processes.
PacifiCorp
FERC Approves Latest IBR Standards
FERC accepted five new reliability standards setting requirements for model validation and data sharing for inverter-based resources.
Massachusetts Clean Peak Coalition
Mass. Nonprofits Outline Road Map for Peak Demand Decarbonization
Massachusetts could decarbonize its peaking power portfolio by 2050 through aggressive deployment of wind, batteries and demand flexibility, according to a new analysis by a group of environmental nonprofits.
© RTO Insider
ISO-NE CEO Chadalavada Talks Winter Operations, Market Reform
Just a few weeks after taking over as CEO of ISO-NE, Vamsi Chadalavada faced a trial-by-fire introduction to the job.

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