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 Fri 05/09	Day 3 Sat 05/10	Day 4 Sun 05/11	Day 5 Mon 05/12	Day 6 Tue 05/13	Day 7 Wed 05/14
High Temperature - Boston	54	60	68	71	74	69
Dew Point - Boston	50	48	40	45	52	58
High Temperature - Hartford	59	64	73	75	78	74
Dew Point - Hartford	56	47	40	45	53	60

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	9,544	9,765	9,600	9,817	9,409	9,681
Anticipated De-List MW Offered	1,049	1,049	1,049	1,049	1,049	1,049
Total Generation Available	19,312	19,091	19,256	19,039	19,447	19,175
Import at Time of Peak	2,250	3,050	3,050	3,250	3,250	3,250
Total Available Generation and Imports	21,562	22,141	22,306	22,289	22,697	22,425
Projected Peak Load	12,800	12,230	12,300	13,240	13,960	14,050
Replacement Reserve Requirement	160	160	160	160	160	160
Required Reserve	2,098	2,098	2,098	2,098	2,098	2,098
Required Reserve including Replacement	2,258	2,258	2,258	2,258	2,258	2,258
Total Load plus Required Reserve	15,058	14,488	14,558	15,498	16,218	16,308
Projected Surplus or Deficiency	6,504	7,653	7,748	6,791	6,479	6,117
Available Demand Response Resources	296	296	296	296	296	296

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 05/08/2025 09:08 EDT