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 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