What is the common term used for high demand conditions indicated by PJM?

The term "Heavy Load" is commonly used to describe high demand conditions in the PJM (Pennsylvania-New Jersey-Maryland) Interconnection system. This designation helps operators and stakeholders understand when electricity usage is significantly elevated, which often occurs during extreme weather events or periods of high consumer activity. Recognizing these conditions is crucial for managing the electricity supply and ensuring reliability within the grid.

By using the term "Heavy Load," PJM can effectively communicate the state of demand to all relevant parties, allowing for proactive measures to be taken to balance supply and demand, such as activating additional generation resources or implementing demand response strategies. This is essential for maintaining grid stability and preventing outages during times of peak usage.