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 25, 2026 09/24/2026 12:51 PM EDT CSV
September 21, 2026 09/20/2026 12:44 PM EDT CSV
September 22, 2026 09/21/2026 12:53 PM EDT CSV
September 23, 2026 09/22/2026 12:40 PM EDT CSV
September 24, 2026 09/23/2026 12:52 PM EDT CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 09/24/2026 06:50 PM EDT CSV
September 20, 2026 09/20/2026 08:15 PM EDT CSV
September 21, 2026 09/21/2026 11:55 PM EDT CSV
September 22, 2026 09/22/2026 03:15 PM EDT CSV
September 23, 2026 09/23/2026 10:15 PM EDT CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 09/25/2026 04:36 AM EDT CSV
September 21, 2026 09/21/2026 11:21 PM EDT CSV
September 22, 2026 09/22/2026 11:21 PM EDT CSV
September 23, 2026 09/23/2026 11:21 PM EDT CSV
September 24, 2026 09/24/2026 11:21 PM EDT CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 09/24/2026 12:05 PM EDT CSV
September 19, 2026 09/21/2026 02:37 PM EDT CSV
September 20, 2026 09/21/2026 02:38 PM EDT CSV
September 21, 2026 09/23/2026 12:48 PM EDT CSV
September 22, 2026 09/23/2026 01:12 PM EDT CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 09/24/2026 12:05 PM EDT CSV
September 19, 2026 09/21/2026 02:37 PM EDT CSV
September 20, 2026 09/21/2026 02:38 PM EDT CSV
September 21, 2026 09/23/2026 12:48 PM EDT CSV
September 22, 2026 09/23/2026 01:12 PM EDT CSV