Constraints

Recently Published Constraints Data

Download the latest reports on binding constraints in the Day-Ahead Energy Market and during the operating day.
 

A constraint is the maximum level a transmission system facility (or facilities) can operate to respect the most restrictive of its thermal, stability, and voltage limits. A constraint becomes "binding" when it limits the power flow between locations, which can lead to dispatch of units out of economic-merit order, potentially affecting the spot price.
 

 
Day-Ahead Binding Constraints
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Description Timestamp Download
July 31, 2025 07/30/2025 12:20 PM EDT CSV
July 27, 2025 07/26/2025 12:49 PM EDT CSV
July 28, 2025 07/27/2025 12:48 PM EDT CSV
July 29, 2025 07/28/2025 12:39 PM EDT CSV
July 30, 2025 07/29/2025 12:28 PM EDT CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 07/31/2025 12:40 AM EDT CSV
July 27, 2025 07/27/2025 06:45 PM EDT CSV
July 28, 2025 07/28/2025 07:30 PM EDT CSV
July 29, 2025 07/29/2025 09:00 PM EDT CSV
July 30, 2025 07/30/2025 09:45 PM EDT CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 07/31/2025 12:36 AM EDT CSV
July 27, 2025 07/27/2025 11:21 PM EDT CSV
July 28, 2025 07/28/2025 11:21 PM EDT CSV
July 29, 2025 07/29/2025 11:21 PM EDT CSV
July 30, 2025 07/30/2025 11:21 PM EDT CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 07/30/2025 02:30 PM EDT CSV
July 26, 2025 07/28/2025 03:19 PM EDT CSV
July 27, 2025 07/28/2025 03:19 PM EDT CSV
July 28, 2025 07/29/2025 03:02 PM EDT CSV
July 25, 2025 07/30/2025 04:07 PM EDT CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 07/30/2025 02:30 PM EDT CSV
July 26, 2025 07/28/2025 03:19 PM EDT CSV
July 27, 2025 07/28/2025 03:19 PM EDT CSV
July 28, 2025 07/29/2025 03:02 PM EDT CSV
July 25, 2025 07/30/2025 04:07 PM EDT CSV