Running a power system is a complicated business. In simple terms, generation needs to match load at all times; but the system also needs to manage other factors to maintain its stability. These ‘other factors’ are collectively known as ‘ancillary services’. This fact sheet focuses on the ancillary service known as frequency control.
- Ancillary services can refer to network support, system restart and frequency control ancillary services (FCAS).
- The battery energy storage system (BESS) in Alice Springs is being optimised to provide various ancillary services.
- Electric vehicles have the potential to provide ancillary services.
This fact sheet points to a range of resources to help deepen knowledge in this complex area.