How quickly must load be shed during an IROL load shed action?

The requirement to shed load during an IROL (Interconnection Reliability Operating Limit) load shed action is critical for maintaining the reliability of the power grid. The correct answer indicates that load must be shed within 5 minutes. This timeframe is established to ensure that any potential reliability issues are addressed swiftly, minimizing the risk of cascading failures or large-scale outages.

The importance of a 5-minute window lies in the operational need for a quick response to prevent an overloading of transmission facilities or generation resources. By implementing load shedding within this timeframe, system operators can stabilize the grid and prevent violations of IROLs, which are essential for maintaining the overall integrity and reliability of the electric system.

In scenarios where load shedding is required, every second counts, and a swift response helps to manage system performance under stressed conditions. This practice ensures that power remains balanced and that the grid operates within its safe parameters.