Which of the following is an example of Electric system security data that is not requested to be updated at least every 10 minutes?

The peak load forecast for the current and next day is indeed an example of electric system security data that does not require updates every 10 minutes. Such forecasts are typically updated on a longer time horizon, reflecting expected demand trends based on historical data, weather conditions, and other influencing factors. These forecasts help operators plan for expected load but don’t fluctuate rapidly enough to require near-instantaneous updates.

On the other hand, instantaneous ACE (Area Control Error), MW reserve available within 10 minutes, and interchange schedules for the next 24 hours represent critical real-time or near real-time data points. ACE must be constantly monitored and updated to ensure that generation meets demand precisely. The MW reserve available within such a short time frame is also vital for maintaining grid stability and responding to unexpected generation or load changes. Lastly, interchange schedules require precision and updates to ensure seamless transactions between interconnected systems, which is essential for efficient grid operation.