How do dispatchers at control areas balance supply and demand?
Dispatchers must match resources (generation) to demand and delivery schedules. They must monitor and maintain system voltage. On an hourly basis, real-time dispatchers validate delivery schedules with each of the other scheduling entities. They also validate these schedules at the end of the day. In addition, they work to verify that delivery schedules for customers are balanced. They manage real-time e-tags—which document the scheduling of energy from an energy supplier and the reservation to transmit that energy—and they assist Automatic Generation Control dispatchers with energy purchases and sales for Area Control Error requirements.
