Next Day Operational Capacity Report

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Produced daily, the Next Day Operational Capacity Report provides the ISO's best estimate of the next day's expected capacity available to meet peak-hour electricity demand and reserve requirements - key parameters used to operate the power system reliably. For the weekly forecast, see the Seven-Day Capacity Forecast.

View the Next Day Operational Capacity Report below or Download a CSV file. Hover over items for an explanation.

Next Day Operational Capacity Report

1. Report Date
07/27/2026 16:00 EDT

Today's Information

2. Operable Capacity Analysis			(MW)
A. Capacity Supply Obligation (CSO)			26,707
B. Capacity Additions EcoMax Bid > CSO			1,382
C. Generation Outages and Reductions (Planned + Forced)			1,830
	Planned Outages and Reductions	77
	Forced Outages and Reductions	1,753
D. Uncommitted Available Generation (non-fast-start)			5,084
E. DRR Capacity			210
F. Uncommitted Available DRR			14
G. Capacity Deliveries: Net Purchases = (-) Net Sales = (+)
	Highgate	0
	NB	98
	NECEC	-1,089
	NYISO AC	-987
	NYISO CSC	225
	NYISO NNC	0
	Phase 2	0
	Net Deliveries		-1,753
H. Total Available Capacity (A+B-C-D+E-F-G)			23,124
I. Peak Load Forecast For Hour Ending 19			17,630
J. Total Operating Reserve Requirement			2,048
K. Capacity Required = I+J			19,678
L. Surplus = (+) Deficiency = (-) (H - K)			3,446
M. Replacement Reserve Requirement			160
N. Excess Commitment Surplus = (+) Deficiency = (-) (L - M)			3,286

3. Largest First Contingency	(MW)
____	1,249

4. Annual Maintenance Schedule (A.M.S.)	(MW)
Peak Load Exposure	25,228

5. Reserve Summary	(MW)
Ten Minute Reserve Requirement:	1,436
Ten Minute Reserve Estimate:	1,436
Thirty Minute Reserve Requirement:	612
Thirty Minute Reserve Estimate:	4,058
Expected Actions of OP 4:	0
Additional Capacity Available from OP 4 Actions:	0

6. Interchange Summary
	Transfer Limit In (MW)	Transfer Limit Out (MW)	Expected Contract (MW)
Highgate	0	0	0
NB	-270	100	98
NECEC	-1,250	0	-1,089
NYISO AC	-1,400	1,200	-987
NYISO CSC	-346	330	225
NYISO NNC	-200	200	0
Phase 2	-2,000	1,200	0

7. Weather Forecast Summary for the Peak Hour
CITY	CONDITIONS	WIND	HIGH TEMP (°F)
Boston	Mostly Cloudy	S-14	75
Hartford	Thunderstorms	S-11	74

8. Units Committed to Meet Minimum Operating Reserve and Replacement Reserve Requirements	(MW)
0 Units	0

9. REPORT COMMENTS

Report Generated 07/27/2026 16:00 EDT

Download a CSV file of this Next Day Operational Capacity Report .