For costs during periods when AEMO was required to intervene on technical characteristics of the power system such as frequency and voltage.
AEMO manages key technical characteristics of the power system, including standards for frequency, voltage, network loading and system restart processes. It does this using three major categories of Ancillary Services:
- Frequency Control Ancillary Services (FCAS)
- Network Support Control Ancillary Services (NSCAS)
- System Restart Ancillary Services (SRAS).
AEMO uses FCAS to help maintain the frequency of the electrical system within the required operating band. Per the NEM frequency standards, the frequency of the electrical system must be maintained close to fifty cycles per second (50 Hertz). FCAS costs are determined by AEMO.
Find out more:
AEMO - Ancillary Services.