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      • Markets and Operations
      • Power System Forecast and Status

      Seven-Day Capacity Forecast

      In this section

      • Power System Forecast and Status
      • Morning Report
      • Current Power System Status
      • Seven-Day Capacity Forecast
      • Three-Day System Demand Forecast
      • 21-Day Energy Assessment Forecast and Report

      Related Links

      • Download Previous Seven-Day Forecasts

      Every day, ISO New England publishes this summary of factors affecting the power system for the next seven days, including weather, generating capacity, and peak demand. The forecast is used to identify capacity deficiencies several days in advance and triggers the commitment of generators with start times greater than 24 hours. For today's forecast, see the Morning Report

      View the forecast below, or download a CSV file. Hover over items for an explanation.

      Weather Day 2
      Wed
      05/21
      Day 3
      Thu
      05/22
      Day 4
      Fri
      05/23
      Day 5
      Sat
      05/24
      Day 6
      Sun
      05/25
      Day 7
      Mon
      05/26
      High Temperature - Boston 53 50 54 57 62 64
      Dew Point - Boston 45 44 43 45 44 48
      High Temperature - Hartford 57 51 58 61 67 69
      Dew Point - Hartford 41 43 44 43 43 47
      Generating Capacity Position
      Total Capacity Supply Obligation (CSO) 27,807 27,807 27,807 27,807 27,807 27,807
      Anticipated Cold Weather Outages 0 0 0 0 0 0
      Other Generation Outages 6,978 6,458 6,004 6,176 6,819 6,560
      Anticipated De-List MW Offered 1,181 1,181 1,181 1,181 1,181 1,181
      Total Generation Available 22,010 22,530 22,984 22,812 22,169 22,428
      Import at Time of Peak 3,050 3,050 2,950 2,820 2,720 2,720
      Total Available Generation and Imports 25,060 25,580 25,934 25,632 24,889 25,148
      Projected Peak Load 13,220 13,930 12,830 12,280 12,350 12,810
      Replacement Reserve Requirement 160 160 160 160 160 160
      Required Reserve 2,304 2,304 2,304 2,304 2,304 2,304
      Required Reserve including Replacement 2,464 2,464 2,464 2,464 2,464 2,464
      Total Load plus Required Reserve 15,684 16,394 15,294 14,744 14,814 15,274
      Projected Surplus or Deficiency 9,376 9,186 10,640 10,888 10,075 9,874
      Available Demand Response Resources 302 302 302 302 302 302
      Load Relief Actions Anticipated
      Power Watch N N N N N N
      Power Warning N N N N N N
      Cold Weather Watch N N - - - -
      Cold Weather Warning N N - - - -
      Cold Weather Event N N - - - -

      Report Generated 05/20/2025 09:36 EDT

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