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
January 03, 2026 01/02/2026 12:47 PM EST CSV
December 30, 2025 12/29/2025 12:42 PM EST CSV
December 31, 2025 12/30/2025 12:39 PM EST CSV
January 01, 2026 12/31/2025 01:58 PM EST CSV
January 02, 2026 01/01/2026 12:38 PM EST CSV
 
Preliminary Real-Time Binding Constraints
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Description Timestamp Download
Current 01/02/2026 08:15 PM EST CSV
December 29, 2025 12/29/2025 11:50 PM EST CSV
December 30, 2025 12/30/2025 11:10 PM EST CSV
December 31, 2025 12/31/2025 03:35 PM EST CSV
January 01, 2026 01/01/2026 11:55 PM EST CSV
 
Preliminary Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 01/02/2026 09:06 PM EST CSV
December 29, 2025 12/29/2025 11:21 PM EST CSV
December 30, 2025 12/30/2025 11:21 PM EST CSV
December 31, 2025 12/31/2025 11:21 PM EST CSV
January 01, 2026 01/01/2026 11:21 PM EST CSV
 
Final Real-Time 15-Minute Binding Constraints
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Description Timestamp Download
Current 01/02/2026 12:52 PM EST CSV
December 28, 2025 12/29/2025 01:28 PM EST CSV
December 29, 2025 12/30/2025 01:31 PM EST CSV
December 30, 2025 12/31/2025 02:34 PM EST CSV
December 31, 2025 01/02/2026 12:40 PM EST CSV
 
Final Real-Time Five-Minute Binding Constraints
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Description Timestamp Download
Current 01/02/2026 12:52 PM EST CSV
December 28, 2025 12/29/2025 01:28 PM EST CSV
December 29, 2025 12/30/2025 01:31 PM EST CSV
December 30, 2025 12/31/2025 02:34 PM EST CSV
December 31, 2025 01/02/2026 12:40 PM EST CSV