Key Facts
New England's Power System and Wholesale
Electricity Market
Click the states on the map below to view individual profiles.
  • 6.5 million households and businesses;
    population 14 million
  • More than 350 generators
  • Over 8,000 miles of high-voltage transmission lines
  • 12 interconnections to electricity systems
    in New York and Canada
  • More than 32,000 megawatts of total supply (includes 1,500 megawatts of demand-response capacity)
  • All-time peak demand of 28,130 megawatts,
    set on August 2, 2006
  • More than 300 participants in the marketplace
    (those who generate, buy, sell, transport, and use
    wholesale electricity)
  • $10 billion annual total energy market value (2007)
  • More than $1.0 billion in transmission investment since 2002; another $4.0 billion planned over next 10 years
  • Five major 345-kilovolt projects already in various stages of construction and operation
  Copyright ©2008 ISO New England Inc.