Dispatch
Deciding which resources supply power, and how much.
Three adjustable output levels symbolize resource setpoints. They are not a real dispatch schedule.
Dispatch assigns operating levels to available resources to meet demand while respecting system constraints. It can consider costs, equipment limits, network conditions, and reliability requirements.
Assigning output while respecting limits
Dispatch turns operating requirements into instructions for available resources. An economic dispatch seeks a low-cost combination while respecting constraints, including resource output limits and network conditions.
Not every resource can change output at the same rate, and some need time to start. Forecasts and operating reserves help manage uncertainty. Market rules and the operator’s responsibilities differ by jurisdiction.
Why it matters
The system needs a coordinated way to adjust supply and flexible demand as conditions change.