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
November 22, 2025 11/21/2025 12:48 PM EST CSV
November 18, 2025 11/17/2025 12:55 PM EST CSV
November 19, 2025 11/18/2025 12:48 PM EST CSV
November 20, 2025 11/19/2025 01:05 PM EST CSV
November 21, 2025 11/20/2025 12:47 PM EST CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 11/22/2025 01:10 AM EST CSV
November 18, 2025 11/18/2025 11:55 PM EST CSV
November 19, 2025 11/19/2025 11:55 PM EST CSV
November 20, 2025 11/20/2025 11:55 PM EST CSV
November 21, 2025 11/21/2025 11:00 PM EST CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 11/22/2025 04:21 AM EST CSV
November 18, 2025 11/18/2025 11:21 PM EST CSV
November 19, 2025 11/19/2025 09:51 PM EST CSV
November 20, 2025 11/20/2025 11:21 PM EST CSV
November 21, 2025 11/21/2025 11:21 PM EST CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 11/21/2025 01:36 PM EST CSV
November 15, 2025 11/17/2025 01:45 PM EST CSV
November 16, 2025 11/17/2025 01:49 PM EST CSV
November 17, 2025 11/18/2025 02:14 PM EST CSV
November 18, 2025 11/19/2025 01:53 PM EST CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 11/21/2025 01:36 PM EST CSV
November 15, 2025 11/17/2025 01:45 PM EST CSV
November 16, 2025 11/17/2025 01:49 PM EST CSV
November 17, 2025 11/18/2025 02:14 PM EST CSV
November 18, 2025 11/19/2025 01:53 PM EST CSV