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 300 generators
  • Over 8,000 miles of high-voltage transmission lines
  • 13 interconnections to electricity systems
    in New York and Canada
  • More than 31,000 megawatts of total supply (plus 2,000 megawatts of demand-response)
  • All-time peak demand of 28,130 megawatts,
    set on August 2, 2006
  • More than 400 participants in the marketplace
  • $12 billion annual total energy market value (2008)
  • $4 billion in transmission investment since 2002;
    another $5.0 billion planned over next 10 years
  • Six major 345-kV projects constructed in four states
  Copyright ©2009 ISO New England Inc.