After a forced outage, what should be done first to mitigate an IROL violation?

To mitigate an IROL (Interconnection Reliability Operating Limit) violation after a forced outage, the first step is to call the Reliability Coordinator (RC) and formulate an Operating Plan. This action is crucial because the RC has a comprehensive understanding of the system status and can provide guidance on how to proceed safely and effectively to restore reliability. Formulating an Operating Plan ensures that all necessary precautions and considerations are taken into account, aiming to minimize the risk of further violations and maintain system stability.

In a situation involving an IROL violation, it's essential to have an overarching strategy that reflects communication and coordination among various entities. The RC can assess the broader system impacts and help facilitate a coordinated response. This approach prioritizes safety and compliance with regulations, which is vital in a reliable power system operation.

Other actions listed, such as placing a parallel line in service or adjusting protective settings, may be part of the response but should not be the first step without consultation with the RC. These actions could lead to unintended consequences or further destabilization if not managed within a well-defined plan.