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
December 24, 2025 12/23/2025 12:34 PM EST CSV
December 20, 2025 12/19/2025 12:42 PM EST CSV
December 21, 2025 12/20/2025 12:16 PM EST CSV
December 22, 2025 12/21/2025 12:21 PM EST CSV
December 23, 2025 12/22/2025 12:28 PM EST CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 12/23/2025 11:15 PM EST CSV
December 19, 2025 12/19/2025 11:50 PM EST CSV
December 20, 2025 12/20/2025 01:35 PM EST CSV
December 21, 2025 12/21/2025 08:05 PM EST CSV
December 22, 2025 12/22/2025 10:25 PM EST CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 12/24/2025 05:33 AM EST CSV
December 20, 2025 12/20/2025 11:18 PM EST CSV
December 21, 2025 12/21/2025 11:18 PM EST CSV
December 22, 2025 12/22/2025 11:18 PM EST CSV
December 23, 2025 12/23/2025 11:21 PM EST CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 12/23/2025 12:00 PM EST CSV
December 18, 2025 12/19/2025 01:50 PM EST CSV
December 19, 2025 12/22/2025 10:42 AM EST CSV
December 20, 2025 12/22/2025 11:54 AM EST CSV
December 21, 2025 12/22/2025 12:35 PM EST CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 12/23/2025 12:00 PM EST CSV
December 18, 2025 12/19/2025 01:50 PM EST CSV
December 19, 2025 12/22/2025 10:42 AM EST CSV
December 20, 2025 12/22/2025 11:54 AM EST CSV
December 21, 2025 12/22/2025 12:35 PM EST CSV