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
October 21, 2026 10/20/2026 12:59 PM EDT CSV
October 17, 2026 10/16/2026 12:40 PM EDT CSV
October 18, 2026 10/17/2026 12:40 PM EDT CSV
October 19, 2026 10/18/2026 12:39 PM EDT CSV
October 20, 2026 10/19/2026 12:57 PM EDT CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 10/21/2026 02:50 AM EDT CSV
October 17, 2026 10/17/2026 11:55 PM EDT CSV
October 18, 2026 10/18/2026 11:55 PM EDT CSV
October 19, 2026 10/19/2026 11:55 PM EDT CSV
October 20, 2026 10/20/2026 11:55 PM EDT CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 10/21/2026 02:51 AM EDT CSV
October 17, 2026 10/17/2026 11:21 PM EDT CSV
October 18, 2026 10/18/2026 11:18 PM EDT CSV
October 19, 2026 10/19/2026 11:18 PM EDT CSV
October 20, 2026 10/20/2026 11:21 PM EDT CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 10/20/2026 01:45 PM EDT CSV
October 15, 2026 10/16/2026 11:47 AM EDT CSV
October 16, 2026 10/19/2026 12:36 PM EDT CSV
October 17, 2026 10/19/2026 03:23 PM EDT CSV
October 18, 2026 10/19/2026 03:32 PM EDT CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 10/20/2026 01:45 PM EDT CSV
October 15, 2026 10/16/2026 11:47 AM EDT CSV
October 16, 2026 10/19/2026 12:36 PM EDT CSV
October 17, 2026 10/19/2026 03:23 PM EDT CSV
October 18, 2026 10/19/2026 03:32 PM EDT CSV