• Staying a Step Ahead

    A new video looks inside ISO New England and the region’s changing power system. Watch today!

  • New! 2018 Regional Electricity Outlook (REO)

    ISO-NE’s annual REO looks at the trends and challenges affecting New England’s power system, as well as the innovative solutions the ISO is pursuing to ensure reliable electricity for the region’s homes and businesses—today and into the future.

  • Energize your future and intern at the ISO!

    Visit our Student Internships page to watch our video on the internship program and explore our offerings.

  • 2017/2018 Winter Outlook

    This at-a-glance handout summarizes ISO New England's operational outlook for the season and provides quick facts and stats.

  • Learn about our mission

    Operate the power grid. Run competitive wholesale electricity markets. Plan for future power system needs. ISO-NE helps keep New England’s homes, businesses, and services up and running 24/7, 365 days a year.


AS OF 03/21/2018 08:39 AM


Capacity (MW)


Forecasted Peak
Demand (MW)


Capacity (MW)


Yesterday's Peak
Demand (MW)

Real-Time Data

System Demand


Forecasted (MW)
Actual (MW)

Fuel Mix


Internal hub Price

$42.38 Energy
$0.00 Congestion
$0.09 Line Loss

System Status

Issues Reported issues

More Real-Time Data


FCM Participation Guide updated for new substitution auction, price-responsive demand, and more

March 19, 2018

As the region’s Forward Capacity Market (FCM) continues to evolve in response to changes in public policies, regulatory requirements, and technology, market participants are encouraged to review the ISO’s FCM Participation Guide.

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ISO-NE responds to FERC's grid resilience order

March 15, 2018

The ISO’s response focuses on the fuel security challenge, the assurance that power plants will have or be able to obtain the fuel they need to run during winter as coal, oil, and nuclear units retire, fuel infrastructure is constrained, and permits to operating dual-fuel generating capability remain difficult to obtain. The ISO requests the Commission afford the ISO time to work with regional stakeholders to develop a long-term solution to challenges but should circumstances dictate, the ISO will take the necessary actions to address near-term reliability risks.

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FERC issues order accepting CASPR revisions to Forward Capacity Market

March 12, 2018

On March 9, 2018, FERC accepted ISO New England’s CASPR proposal, noting that out-of-market state revenues can result in building more capacity than a region needs, overpayment by consumers for capacity, inefficiently low capacity market prices and the erosion of investor confidence. FERC concludes that the CASPR proposal, appropriately addresses the issues associated with out-of-market state revenues while ensuring that the overall capacity market can continue to attract and maintain appropriate levels of new resource investment.

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