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March 17, 2026

ISO-NE

ISO New England Inc. is a regional transmission organization that oversees the operation of the electricity transmission system, coordinates wholesale electricity markets, and manages power system planning for the states of Connecticut, Rhode Island, Massachusetts, Vermont, New Hampshire, and most of Maine.
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.
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.
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.
Eversource Energy
Eversource Adds $2.3B to 5-Year Capital Investment Plan
Eversource Energy increased its five-year capital investment plan by $2.3 billion, an increase largely driven by investments in its gas and electric distribution systems.
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.

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