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December 19, 2025

ISO New England (ISO-NE)

NERC
NPCC Warns of Tight Summer Margins in Ontario
Canada’s Ontario and Maritimes provinces may have to rely on energy imports and operating procedures to meet energy needs this summer, the NPCC said.
ISO-NE
ISO-NE Stakeholders OK DER Aggregation Plans, Generator Relief
ISO-NE stakeholders approved a proposed filing on DERs but rejected the RTO’s concerns in backing Ocean State Power's bid to remain a capacity resource.
HDR, Inc.
FERC Rejects Pump Storage Bid for ISO-NE Inventoried Energy Program
FERC rejected a request to include pump storage in ISO-NE’s Inventoried Energy Program despite protests that it should be treated like other storage resources.
ISO-NE
ISO-NE Planners Outline Potential Solutions for 2050 Tx Overloads
ISO-NE is studying line upgrades and new 345-kV and HVDC lines to address expected reliability violations in its 2050 Transmission Study.
ISO-NE draft 2023 Capacity, Energy, Loads, and Transmission report
ISO-NE Expects Slower, Then Faster, Load Growth
ISO-NE’s revised load forecast sees slower growth in the next few years because of economic turbulence, followed by accelerating growth from electrification.
NECEC
New England Clean Energy Connect Wins Court Battle
A jury ruled Avangrid can resume construction of the New England Clean Energy Connect, potentially voiding a voter referendum to block the $1 billion line.
Grid Strategies
Grid Strategies Reports Spiking Congestion Costs
The cost of transmission congestion doubled in organized electricity markets between 2020 and 2021, rising by billions of dollars, according to Grid Strategies.
ISO-NE
ISO-NE Sees Record-low Power Demand on Holiday Afternoon
ISO-NE said that last Sunday demand on the grid was the lowest it had ever recorded since the RTO began operations in 1997.
ISO-NE
Gas Volatility Leads ISO-NE to Seek Update to Inventoried Energy Program
ISO-NE is seeking changes to the program to attract sufficient LNG in light of higher volatility in global prices than when FERC initially approved it in 2020.
© RTO Insider LLC
IPF Panel: MSSC Limits Could Cut OSW Power Coming Onshore
Offshore wind will produce thousands of megawatts of electric power, way more than the onshore transmission system is currently able to absorb, an expert says.

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