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
August 29, 2025 08/28/2025 12:51 PM EDT CSV
August 25, 2025 08/24/2025 12:46 PM EDT CSV
August 26, 2025 08/25/2025 12:51 PM EDT CSV
August 27, 2025 08/26/2025 12:48 PM EDT CSV
August 28, 2025 08/27/2025 12:43 PM EDT CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 08/28/2025 06:50 AM EDT CSV
August 24, 2025 08/24/2025 07:20 PM EDT CSV
August 25, 2025 08/25/2025 11:25 PM EDT CSV
August 26, 2025 08/26/2025 10:10 PM EDT CSV
August 27, 2025 08/27/2025 08:40 PM EDT CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 08/28/2025 02:51 PM EDT CSV
August 24, 2025 08/24/2025 11:21 PM EDT CSV
August 25, 2025 08/25/2025 11:21 PM EDT CSV
August 26, 2025 08/26/2025 11:21 PM EDT CSV
August 27, 2025 08/27/2025 11:21 PM EDT CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 08/28/2025 02:43 PM EDT CSV
August 23, 2025 08/25/2025 02:45 PM EDT CSV
August 24, 2025 08/25/2025 02:55 PM EDT CSV
August 25, 2025 08/26/2025 12:30 PM EDT CSV
August 26, 2025 08/27/2025 01:00 PM EDT CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 08/28/2025 02:43 PM EDT CSV
August 23, 2025 08/25/2025 02:45 PM EDT CSV
August 24, 2025 08/25/2025 02:55 PM EDT CSV
August 25, 2025 08/26/2025 12:30 PM EDT CSV
August 26, 2025 08/27/2025 01:00 PM EDT CSV