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 23, 2026 07/22/2026 12:53 PM EDT CSV
July 19, 2026 07/18/2026 12:27 PM EDT CSV
July 20, 2026 07/19/2026 12:34 PM EDT CSV
July 21, 2026 07/20/2026 12:44 PM EDT CSV
July 22, 2026 07/21/2026 12:50 PM EDT CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 07/22/2026 02:30 PM EDT CSV
July 18, 2026 07/18/2026 11:20 PM EDT CSV
July 19, 2026 07/19/2026 11:55 PM EDT CSV
July 20, 2026 07/20/2026 10:30 PM EDT CSV
July 21, 2026 07/21/2026 11:55 PM EDT CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 07/22/2026 02:21 PM EDT CSV
July 18, 2026 07/18/2026 11:21 PM EDT CSV
July 19, 2026 07/19/2026 11:18 PM EDT CSV
July 20, 2026 07/20/2026 11:21 PM EDT CSV
July 21, 2026 07/21/2026 11:18 PM EDT CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 07/21/2026 11:41 AM EDT CSV
July 16, 2026 07/17/2026 01:03 PM EDT CSV
July 17, 2026 07/20/2026 11:23 AM EDT CSV
July 18, 2026 07/20/2026 12:06 PM EDT CSV
July 19, 2026 07/20/2026 02:40 PM EDT CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 07/21/2026 11:41 AM EDT CSV
July 16, 2026 07/17/2026 01:03 PM EDT CSV
July 17, 2026 07/20/2026 11:23 AM EDT CSV
July 18, 2026 07/20/2026 12:06 PM EDT CSV
July 19, 2026 07/20/2026 02:40 PM EDT CSV