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Electric Power Markets: New England (ISO-NE)

New England (ISO-NE) Electric Regions  
New England (ISO-NE) Electric Regions  

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    States covered: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont

    Reliability region: ISO New England (ISO-NE) sub-region of the Northeast Power Coordinating Council (NPCC)
    [NERC regions map PDF]

    Balancing authority: ISO New England (ISO-NE)

    Load zones: Connecticut, Maine, New Hampshire, Rhode Island, Vermont, Northeastern Massachusetts/Boston (NEMA), Southeastern Massachusetts (SEMA) and Western/Central Massachusetts (WCMA).

    Hub: Mass Hub

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    ISO New England (ISO-NE) (established 1997) operates the region's power grid and wholesale electric markets:

    • Energy market: two-settlement (day ahead and real-time) spot market with locational marginal pricing (an internal hub, eight load zones and more than 500 nodes),
    • Capacity market,
    • Forward reserves market,
    • Regulation market, and
    • Financial transmission rights market.

    ISO-NE 2009 State of the Markets Report PDF External Link
    Market Monitor: David LaPlante - Internal Market Monitor
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    Marginal fuel type: natural gas

    Generating capacity (summer 2009): 36,820 MW

    Very little new generation has been brought on line recently in New England. The ISO states that it, “…has adequate installed capacity to meet regional capacity needs through 2009. The ISO is optimistic that adequate demand and supply resources will be purchased and installed in time to meet the projected capacity needs and the resource adequacy requirements for 2010 and beyond.”

    Capacity reserve (summer 2009): 9,600 MW

    Reserve margin (summer 2007): 35.3%

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    All time peak demand: 28,130 MW (set August 2, 2006)

    In summer of 2006, demand reached record levels on several occasions due to extremely hot weather.

    Peak demand growth: 7.1% (2007-2006) (weather-normalized peak increased by 1.9%)

      2006 2007 2008 2009
    Summer Peak Demand (MW) 28,130 26,145 26,111 25,081
    Source: Derived from ISO-NE Data

    Load pockets: Southwest Connecticut, Southeastern Massachusetts (SEMA), and Northeastern Massachusetts/Boston (NEMA).

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    Annual Average Price (RTO Day-Ahead Mass Hub)
    2006: $60.93/MWh
    2007: $67.97/MWh
    2008: $80.43/MWh
    2009: $67.97/MWh

Contact Information:
For questions regarding the material in the New England section please contact our staff at: oversight@ferc.gov

Updated: February 26, 2015