Next Day Operational Capacity Report

In this section

Related Links

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
07/06/2025 15:47 EDT

Today's Information

2. Operable Capacity Analysis			(MW)
A. Capacity Supply Obligation (CSO)			26,074
B. Capacity Additions EcoMax Bid > CSO			1,363
C. Generation Outages and Reductions (Planned + Forced)			1,632
	Planned Outages and Reductions	3
	Forced Outages and Reductions	1,629
D. Uncommitted Available Generation (non-fast-start)			1,624
E. DRR Capacity			201
F. Uncommitted Available DRR			12
G. Capacity Deliveries: Net Purchases = (-) Net Sales = (+)
	Highgate	-225
	NB	-344
	NECEC	0
	NYISO AC	-1,400
	NYISO CSC	225
	NYISO NNC	-125
	Phase 2	-1,956
	Net Deliveries		-3,825
H. Total Available Capacity (A+B-C-D+E-F-G)			28,195
I. Peak Load Forecast For Hour Ending 19			22,800
J. Total Operating Reserve Requirement			2,971
K. Capacity Required = I+J			25,771
L. Surplus = (+) Deficiency = (-) (H - K)			2,424
M. Replacement Reserve Requirement			160
N. Excess Commitment Surplus = (+) Deficiency = (-) (L - M)			2,264

3. Largest First Contingency	(MW)
____	1,956

4. Annual Maintenance Schedule (A.M.S.)	(MW)
Peak Load Exposure	24,803

5. Reserve Summary	(MW)
Ten Minute Reserve Requirement:	2,347
Ten Minute Reserve Estimate:	2,347
Thirty Minute Reserve Requirement:	624
Thirty Minute Reserve Estimate:	3,048
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	-225	0	-225
NB	-1,000	200	-344
NECEC	0	0	0
NYISO AC	-1,400	1,200	-1,400
NYISO CSC	-346	330	225
NYISO NNC	-125	125	-125
Phase 2	-2,000	1,200	-1,956

7. Weather Forecast Summary for the Peak Hour
CITY	CONDITIONS	WIND	HIGH TEMP (°F)
Boston	Clear	SW 12	93
Hartford	Clear	S 10	91

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

9. REPORT COMMENTS

Report Generated 07/06/2025 15:47 EDT

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