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
09/19/2026 16:00 EDT

Today's Information

2. Operable Capacity Analysis			(MW)
A. Capacity Supply Obligation (CSO)			26,827
B. Capacity Additions EcoMax Bid > CSO			1,427
C. Generation Outages and Reductions (Planned + Forced)			3,691
	Planned Outages and Reductions	2,191
	Forced Outages and Reductions	1,500
D. Uncommitted Available Generation (non-fast-start)			6,612
E. DRR Capacity			178
F. Uncommitted Available DRR			14
G. Capacity Deliveries: Net Purchases = (-) Net Sales = (+)
	Highgate	0
	NB	398
	NECEC	-1,090
	NYISO AC	153
	NYISO CSC	330
	NYISO NNC	114
	Phase 2	0
	Net Deliveries		-95
H. Total Available Capacity (A+B-C-D+E-F-G)			18,210
I. Peak Load Forecast For Hour Ending 20			13,800
J. Total Operating Reserve Requirement			2,032
K. Capacity Required = I+J			15,832
L. Surplus = (+) Deficiency = (-) (H - K)			2,378
M. Replacement Reserve Requirement			160
N. Excess Commitment Surplus = (+) Deficiency = (-) (L - M)			2,218

3. Largest First Contingency	(MW)
____	1,238

4. Annual Maintenance Schedule (A.M.S.)	(MW)
Peak Load Exposure	21,613

5. Reserve Summary	(MW)
Ten Minute Reserve Requirement:	1,424
Ten Minute Reserve Estimate:	1,424
Thirty Minute Reserve Requirement:	608
Thirty Minute Reserve Estimate:	2,986
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	-217	0	0
NB	-650	400	398
NECEC	-1,250	0	-1,090
NYISO AC	-1,400	1,200	153
NYISO CSC	-346	330	330
NYISO NNC	-200	200	114
Phase 2	-2,000	1,200	0

7. Weather Forecast Summary for the Peak Hour
CITY	CONDITIONS	WIND	HIGH TEMP (掳F)
Boston	Rain	SE-9	62
Hartford	Rain	SE-6	61

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

9. REPORT COMMENTS

Report Generated 09/19/2026 16:00 EDT

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