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2017/2018 winter outlook: sufficient electricity supplies expected

Natural gas pipeline constraints remain a concern; final Winter Reliability Program implemented

Electricity supplies should be sufficient to meet New England’s consumer demand for electricity this winter, but possible natural gas pipeline constraints could limit electricity production from natural gas power plants. The ISO’s fifth and final Winter Reliability Program has been implemented to incentivize power plants to procure sufficient fuel before winter begins. The interim reliability program is ending after this winter due to new capacity market performance incentive rules that go into effect June 1, 2018. View the press release for more information and download our winter outlook fact sheet.

Winter Outlook Facts and Figures

  • Winter peak forecast: 21,197 MW (with winter temperatures at about 7°F)
  • Extreme winter peak forecast: 21,895 MW (with winter temperatures at about 2°F)
  • Last winter’s demand peaked at 19,647 MW on December 15, 2016
  • The all-time winter peak is 22,818, set on January 15, 2004, during a cold snap

Download ISO New England’s free mobile app, ISO to Go, to keep an eye on system conditions, track consumer demand, and see the types of power plants producing electricity at any time of day. Read more about the app and its features.