What is the established procedure if the IROL limit is exceeded?

When the IROL (Interconnection Reliability Operating Limit) is exceeded, conducting a PJM All-call is the established procedure. This action is critical because it ensures that all relevant parties, including grid operators and stakeholders, are immediately informed of the situation, which allows for a coordinated response. The PJM All-call facilitates communication and collaboration among various entities to quickly assess the circumstances and implement necessary measures to restore the system to compliance with reliability standards.

By bringing everyone involved in the operation of the transmission system together, the PJM All-call activates a rapid decision-making process. This helps to mitigate risks associated with exceeding IROLs, which can lead to more significant issues like cascading failures or system instability if not properly addressed.