PIAC responded to the Australian Energy Market Operator’s (AEMO) consultation on amendments to the Market Ancillary Service Specification (MASS). We supported the second draft determination to require a minimum measurement time resolution for fast Frequency Control Ancillary Services (FCAS) providers of:
- 200 ms for aggregated facilities with no inertial response (5% error applies if number of sites is less than 200); and
- 50 ms for all other facilities.
We commended AEMO for taking extra time to consider the issue of measurement resolution and propose a solution that better serves the interests of consumers.
