For facility outages rated 500 kV and above, how long before should notifications be sent?

Notifications for facility outages rated 500 kV and above should be sent 30 minutes in advance. This timeframe is crucial as it allows operators to take necessary actions to maintain the reliability of the power grid. A timely alert enables coordination among various stakeholders, including transmission operators and reliability coordinators, to ensure stability and facilitate necessary system adjustments.

Sending notifications well in advance is essential for minimizing disruptions and ensuring that appropriate measures, such as rerouting power or implementing contingency plans, can be enacted effectively. Providing a 30-minute notice strikes a balance between operational efficiency and the practicalities of responding to potential impacts on the grid, allowing enough time for preparation without being overly excessive.