What is the purpose of curtailing non-essential building load?

Curtailing non-essential building load serves the critical purpose of providing additional relief before voltage reductions. In situations where the electric grid is under significant stress or during peak demand, reducing load from non-essential sources helps alleviate pressure on the system. This preemptive action can stabilize voltage levels and prevent the need for more drastic measures, such as voltage reductions that would affect essential services. By managing non-critical loads effectively, utilities can maintain a more stable and reliable power distribution, ensuring that the most vital systems and services remain operational during times of increased demand or resource strain.