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
September 22, 2025 09/21/2025 01:09 PM EDT CSV
September 18, 2025 09/17/2025 12:39 PM EDT CSV
September 19, 2025 09/18/2025 12:35 PM EDT CSV
September 20, 2025 09/19/2025 12:27 PM EDT CSV
September 21, 2025 09/20/2025 12:27 PM EDT CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 09/22/2025 08:30 AM EDT CSV
September 18, 2025 09/18/2025 11:55 PM EDT CSV
September 19, 2025 09/19/2025 11:55 PM EDT CSV
September 20, 2025 09/20/2025 11:55 PM EDT CSV
September 21, 2025 09/21/2025 11:55 PM EDT CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 09/22/2025 12:06 PM EDT CSV
September 18, 2025 09/18/2025 11:21 PM EDT CSV
September 19, 2025 09/19/2025 11:21 PM EDT CSV
September 20, 2025 09/20/2025 11:21 PM EDT CSV
September 21, 2025 09/21/2025 11:21 PM EDT CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 09/19/2025 01:45 PM EDT CSV
September 14, 2025 09/15/2025 04:15 PM EDT CSV
September 15, 2025 09/16/2025 11:48 AM EDT CSV
September 16, 2025 09/17/2025 12:28 PM EDT CSV
September 17, 2025 09/18/2025 01:53 PM EDT CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 09/19/2025 01:45 PM EDT CSV
September 14, 2025 09/15/2025 04:15 PM EDT CSV
September 15, 2025 09/16/2025 11:48 AM EDT CSV
September 16, 2025 09/17/2025 12:28 PM EDT CSV
September 17, 2025 09/18/2025 01:53 PM EDT CSV