Regionalisation of FCAS
AEMO has identified a potential system risk with the provision of Regulation Frequency Control Ancillary Service (FCAS) associated with the upcoming commissioning of additional large-scale battery storage capacity in the NEM. To mitigate this risk to system security, some additional measures will be required to be introduced into the NEM.
AEMO will be hosting briefings for interested stakeholders to explain the risk, the proposed additional measures and seek comments.