How often must Reliability Coordinators and Transmission Operators perform a Real-time Assessment?

The correct answer is that Reliability Coordinators and Transmission Operators must perform a Real-time Assessment every 30 minutes. This requirement is pivotal to maintaining the reliability of the electrical grid. By conducting assessments at this frequency, operators can ensure they are effectively monitoring system conditions, responding to changes in demand, and addressing any emerging reliability issues in a timely manner.

Real-time assessments involve evaluating the status of the transmission system, including load forecasts, generation availability, and physical system conditions. Such regular monitoring helps identify potential problems before they escalate, allowing for proactive measures to mitigate risks to the grid's integrity.

In practice, a 30-minute interval strikes a balance between being frequent enough to capture rapid changes in system conditions while allowing operators to process and respond adequately to the information gathered. This interval enhances situational awareness for operators and contributes to the overall stability and reliability of the electricity supply.