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December 5, 2025

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.
CAISO
Around the Corner: The Solar Duck Has Run Amuck, But that May Change Soon

The duck curve has landed in New England, not the sunniest of places, but it and California are by no means the only grids that will be greatly affected, says columnist Peter Kelly-Detwiler.

© RTO Insider 
Regulators Focus on Energy Affordability at NECPUC Symposium

Government officials and industry executives discussed how to mitigate rising energy costs in New England at the NECPUC Symposium.

© RTO Insider
ISO-NE Open to Asset Condition Review Role amid Rising Costs
ISO-NE announced it is open to taking on a limited asset condition reviewer role, intended to help increase oversight of transmission infrastructure projects. 
Shutterstock
Mass. Gov. Healey Introduces Energy Affordability Bill
Massachusetts Gov. Maura Healey has filed a major energy bill that her administration says would save ratepayers $10 billion over the next decade.
ISO-NE
ISO-NE Finds Advanced PV Panels Could Reduce Decarbonization Costs
New research by ISO-NE indicates bifacial solar panels with tracking capabilities could reduce the cost of decarbonizing New England’s generation mix by about $3.7 billion.
Shutterstock
Report Finds Benefits of Pairing Electrification with TOU Rates in Mass.
Time-of-use electricity rates could save Massachusetts ratepayers with electrified heating hundreds of dollars each year per household, according to a report.  
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.
EMC Engineering Services
NEPOOL Supports Timeline Revisions for ISO-NE Order 2023 Compliance
The NEPOOL Participants Committee voted to support an expedited filing adjusting several key dates in ISO-NE’s compliance proposal for FERC Order 2023.
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FERC Accepts ISO-NE Compliance Filing on Interconnection O&M Costs
FERC has accepted a compliance filing by ISO-NE and the New England transmission owners eliminating interconnection customers’ responsibility to pay for operations and maintenance costs on interconnection network upgrades.
ISO-NE
Growth of BTM Solar Drives Record-low Demand in ISO-NE
ISO-NE experienced record-low demand on Easter Sunday because of mild temperatures and high behind-the-meter solar output, making 2025 the fourth consecutive year ISO-NE has set a low-load record.

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