This consultation paper commences the first stage of the standard rules consultation procedure conducted by AEMO under clause 3.7.3(d) of the National Electricity Amendment (Updating Short Term PASA) Rule 2022, which will commence on 31 July 2025. This consultation covers some of the short term projected assessment of system adequacy procedures, which outline how AEMO ensures power system security and reliability after implementing the ST PASA replacement project.
AEMO is consulting on the ST PASA replacement project in two stages, Consultation 1 and Consultation 2, to ensure relevant parties have adequate opportunity to engage on the extensive changes to the ST PASA process and the ST PASA procedures.
This consultation (Consultation 1) will consult o n the ST PASA Procedure, describing the process, definitions, concepts, features, inputs and outputs that are to be used by the new ST PASA engine that AEMO is replacing. Consultation 1 will also cover minor amendments to the
Reliability Standard Implementation Guidelines (RSIG) and address topics raised through the ST PASA Procedure consultation that are within the scope of this consultation.
The second consultation (Consultation 2) is targeted to commence in Quarter 4 2025 after Consultation 1 has finished, and will consider proposed forecasting processing and aggregation of outputs to support supply reliability assessments and declaration of reserve levels. Consultation 2 will also cover consolidation of the reliability standard implementation in the ST PASA period to the Reserve Level Declaration Guidelines (RLDG) document. Minor consequential amendments to the spot market operations timetable will also be a part of Consultation 2.
The draft ST PASA Procedure accompanying this consultation paper has been rewritten and does not include marked changes but does include data requirements and data outputs for the new ST PASA engine. This consultation also covers minor consequential amendments to the RSIG, which are change marked.
Submissions on the consultation paper and procedures are due to STPASAReplacement@aemo.com.au by 5pm AEST on 15 May 2025. Please not that submissions will be published, other than confidential material as per AEMO’s Consultation submission guidelines.
Scope
This consultation sets out AEMO’s proposal on the content of the ST PASA Procedure and the reliability standard implementation guidelines, in accordance with NER 3.7.3 as replaced by National Electricity Amendment (Updating Short Term PASA) Rule 2022.
AEMO has established the ST PASA Replacement Project under AEMO’s Operations Technology Program to implement system and procedure changes collaboratively with industry.