Which part of the ACE equation reflects dynamic schedules?

The scheduled interchange component, which is denoted as NIS within the ACE (Area Control Error) equation, specifically represents the impacts of dynamic schedules. Dynamic schedules are arrangements where power is transferred between areas based on real-time operational needs rather than static agreements.

In the context of the ACE equation, NIS accounts for the power that is both scheduled and internationally recognized as part of the interchange between balancing areas, including any dynamic schedules that may be in effect. It reflects the planned or expected energy flows resulting from these dynamic agreements, which are crucial for maintaining system balance and reliability.

The other components of the ACE equation serve different roles; for instance, the frequency component, FA, relates to system frequency and how it impacts system stability, while the imbalance measurements IME address the actual measured discrepancies in generation versus load. The net interchange adjustment, NIA, pertains to real-time adjustments based on existing targets or goals in energy interchange, but does not directly capture the dynamic schedules as effectively as NIS does.