How often does the TLR procedure need updating for identifying TLR levels and actions to be implemented?

The TLR (Transmission Loading Relief) procedure requires updates on a regular basis to ensure accurate identification of TLR levels and the corresponding actions that need to be implemented. Updating the procedure every 60 minutes (hourly) aligns with best practices for maintaining reliability in the electric grid.

This frequency allows operators to respond promptly to changes in system conditions and load dynamics, ensuring that necessary actions are taken in a timely manner to prevent congestion and maintain system reliability. Monitoring and adjusting on an hourly basis also ensures that the TLR levels reflect the most current data available, enabling more effective decision-making and coordinated efforts among reliability coordinators.

Other intervals may not provide the necessary responsiveness to rapidly changing conditions in the power system. For instance, shorter intervals may not be practical or necessary, while longer intervals could lead to outdated information affecting operational decisions. Therefore, the one-hour update interval strikes an effective balance between timely responsiveness and operational feasibility.