What is the minimum kV level for bus voltages that must be reported in the PJM system?

The minimum kV level for bus voltages that must be reported in the PJM system is 100 kV. This standard is in place to ensure that the operational data reported reflects significant transmission infrastructure. Volumes of electricity at higher voltages, such as 100 kV and above, are critical for maintaining grid reliability and operational efficiency.

The emphasis on reporting voltages from this level ensures that the PJM operates within the necessary parameters for grid optimization and monitoring, as these voltages are typically associated with the bulk power transmission system. Reporting voltages below this level, such as those found in lower voltage distribution systems, does not contribute to the overarching goals of the PJM network, which focuses on medium to high voltage levels essential for interconnections and long-distance power transfers.

Therefore, the choice of 100 kV as the minimum reporting threshold aligns with PJM's operational needs and strategic focus on managing large-scale transmission networks effectively.