Operating Procedures

ERCOT documents its processes and procedures for reliable daily grid operation and emergency actions. Locate these procedures below.

ERCOT sometimes uses Temporary Changes that are separate from the actual procedure. These can be found in the Power Operations Bulletins section of this site. Please note that some Temporary Changes contain market sensitive or protected information. This small set of special procedures containing market sensitive information is not posted.

  • ERCOT DC Tie Operations
    NERC Tagging, Interchange Scheduling, Normal and Emergency Operations, and Inadvertent Accounting
    (06/09/09, .doc, 334.5 KB)
  • Inadvertent energy procedure_100109v1r3.doc
    Procedure for monitoring and controlling inadvertent flows across the DC Ties
    (10/01/09, .doc, 478 KB)
  • Operating Procedure Manual: Frequency Control Desk
    Procedure for the system operator assigned to the Frequency Control Desk, which is responsible for ensuring that frequency within the ERCOT System remains within the tolerances; March 9, 2010, version 4.0, revision 11
    (03/04/10, .doc, 1 MB)
  • Operating Procedure Manual: Operating Period Desk
    Procedure for the system operator assigned to the Operating Period Desk, which is responsible for the oversight of market activities during the operating period, which includes the Hour Ahead and the Operating Hour; March 9, 2010 version 3.0, revision 8
    (03/03/10, .doc, 270 KB)
  • Operating Procedure Manual: Day-Ahead Desk
    Procedure for the system operator assigned to the Day-Ahead Desk, which is responsible for oversight of the day-ahead market operation within ERCOT; March 9, 2010, version 4.0, revision 10
    (03/03/10, .doc, 456.5 KB)
  • Operating Procedure Manual: Operating Procedures Maintenance and Development
    Process for initial development, review, approval, control, distribution, archiving, temporary change and revision of operating procedures used within ERCOT System Operations, including steps to assist the procedure developer in determining content and task details; October 14, 2009, version 2, revision 10
    (02/12/10, .doc, 1.1 MB)
  • Operating Procedure Manual: Transmission and Security Desk
    Procedure for the system operator assigned to the Transmission and Security Desk, which monitors system performance as well as planned and forced outages; March 9, 2010, version 4.0, revision 12
    (03/04/10, .doc, 1 MB)
  • Operating Procedures Manual: Shift Supervisor Desk
    Manual providing the ERCOT shift supervisor with the information to assist in addressing technical and operational issues, disturbances, disputes, system performance and reports; March 9, 2010, version 4.0, revision 12
    (03/03/10, .doc, 1.1 MB)
  • Request for Unit Testing
    (02/25/10, .doc, 30 KB)