EUAA Submission: AEMO Security Enablement Procedures Consultation Paper
Emily Wood | April 10, 2026
The proposed procedures give AEMO the ability to dispatch system security according to its models. Historically, AEMO models are conservative and lead to the over-intervention by AEMO (ie predicting system security events when none occurs) leading to increased costs for consumers.
‘…EUAA supports in-principle AEMO’s proposed revisions to how multi unit dispatchable plant is classified as being in commercial operation.
Under the proposed arrangements however, generators must cap their maximum bid availability at minimum safe operating level (MSOL) to remain eligible for enablement payments, even where AEMO has issued a dispatch instruction requiring the unit to operate only at its MSOL for security reasons. This approach relies on bid maximum availability as a proxy for commercial intent, rather than the actual dispatch outcome.
This behaviour suppresses capacity that is already online and capable of responding in the market, which in turn causes AEMO’s pre dispatch projected assessment of system adequacy (PD PASA) to underestimate real system adequacy. The result is the potential for (avoidable) interventions including Lack of Reserve (LOR) notices, Reliability and Emergency Reserve Trader (RERT) activation and higher spot price volatility….’
Please download attached document to red our full submission.
