Seven-Day Capacity Forecast

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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 Sat 07/19	Day 3 Sun 07/20	Day 4 Mon 07/21	Day 5 Tue 07/22	Day 6 Wed 07/23	Day 7 Thu 07/24
High Temperature - Boston	82	82	76	74	79	86
Dew Point - Boston	60	70	50	49	59	66
High Temperature - Hartford	85	84	79	79	85	89
Dew Point - Hartford	59	72	51	50	58	68

Generating Capacity Position
Total Capacity Supply Obligation (CSO)	26,074	26,074	26,074	26,074	26,074	26,074
Anticipated Cold Weather Outages	0	0	0	0	0	0
Other Generation Outages	2,251	2,761	3,309	3,511	3,620	3,749
Anticipated De-List MW Offered	1,186	1,186	1,186	1,186	1,186	1,186
Total Generation Available	25,009	24,499	23,951	23,749	23,640	23,511
Import at Time of Peak	2,845	2,845	3,045	3,045	3,045	3,045
Total Available Generation and Imports	27,854	27,344	26,996	26,794	26,685	26,556
Projected Peak Load	17,440	18,580	16,750	15,870	17,570	20,730
Replacement Reserve Requirement	160	160	160	160	160	160
Required Reserve	2,105	2,105	2,105	2,105	2,105	2,105
Required Reserve including Replacement	2,265	2,265	2,265	2,265	2,265	2,265
Total Load plus Required Reserve	19,705	20,845	19,015	18,135	19,835	22,995
Projected Surplus or Deficiency	8,149	6,499	7,981	8,659	6,850	3,561
Available Demand Response Resources	289	289	289	289	289	289

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 07/18/2025 09:06 EDT