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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.
 

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      Constraints
      Hourly reports are available from the past seven years and five minute reports are available from the past six months. Downloads are provided as .zip files.
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      Day-Ahead Binding Constraints
      Preliminary Real-Time Binding Constraints
      Preliminary Real-Time 15-Minute Binding Constraints
      Final Real-Time 15-Minute Binding Constraints
      Final Real-Time Five-Minute Binding Constraints
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      Day-Ahead Binding Constraints
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      Description Timestamp Download
      February 19, 2019 02/18/2019 12:11 PM EST CSV
      February 18, 2019 02/17/2019 12:16 PM EST CSV
      February 17, 2019 02/16/2019 12:41 PM EST CSV
      February 16, 2019 02/15/2019 12:01 PM EST CSV
      February 15, 2019 02/14/2019 12:16 PM EST CSV
       
      Preliminary Real-Time Binding Constraints
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      Description Timestamp Download
      Current 02/18/2019 05:30 PM EST CSV
      February 17, 2019 02/17/2019 11:15 PM EST CSV
      February 16, 2019 02/16/2019 11:55 PM EST CSV
      February 15, 2019 02/15/2019 11:55 PM EST CSV
      February 14, 2019 02/14/2019 11:55 PM EST CSV
       
      Preliminary Real-Time 15-Minute Binding Constraints
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      Description Timestamp Download
      Current 02/18/2019 05:27 PM EST CSV
      February 17, 2019 02/17/2019 11:27 PM EST CSV
      February 16, 2019 02/16/2019 11:27 PM EST CSV
      February 15, 2019 02/15/2019 11:27 PM EST CSV
      February 14, 2019 02/14/2019 11:27 PM EST CSV
       
      Final Real-Time 15-Minute Binding Constraints
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      Description Timestamp Download
      Current 02/15/2019 11:55 AM EST CSV
      February 13, 2019 02/14/2019 11:55 AM EST CSV
      February 12, 2019 02/13/2019 11:35 AM EST CSV
      February 11, 2019 02/12/2019 10:56 AM EST CSV
      February 10, 2019 02/11/2019 12:30 PM EST CSV
       
      Final Real-Time Five-Minute Binding Constraints
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      Description Timestamp Download
      Current 02/15/2019 11:57 AM EST CSV
      February 13, 2019 02/14/2019 11:57 AM EST CSV
      February 12, 2019 02/13/2019 11:38 AM EST CSV
      February 11, 2019 02/12/2019 10:59 AM EST CSV
      February 10, 2019 02/11/2019 12:32 PM EST CSV