Consultation process
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Consultation paper published7 April 2025
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Public forum10 April 2025
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Submissions due on consultation paper8 May 2025
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Draft report published13 June 2025
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Submissions due on draft report15 July 2025
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Final report and procedure publishedExpected 11 August 2025
Key contact
Email: NEMReform@aemo.com.au
Matters under consultation
In March 2024, the Australian Energy Market Commission (AEMC) released its final determination on the Improving security frameworks for the energy transition (ISF) rule change.
The rule evolves existing frameworks with the aim of ensuring sufficient security services are provided as the power system continues to transition to higher penetrations of inverter-based resources (IBR). It requires AEMO to assess and enable the necessary security services in operational timeframes to ensure that the power system is secure day-to-day.
The enablement of security services under the ISF Rule commences 2 December 2025 and must be conducted in accordance with the Security Enablement Procedures that are to be published by 31 August 2025. The Procedures will set out a methodology for determining and meeting system security requirements, in addition to requirements in agreements to be entered by Transmission Network Service Providers.
AEMO is now consulting on the new Security Enablement Procedures in accordance with new NER 4.4A.6(a) and the standard rules consultation procedure in clause 8.9.2 of the National Electricity Rules (NER).
Second round are due to NEMReform@aemo.com.au by 5pm AEST on Tuesday 15 July 2025. Please note that submissions will be published, other than confidential material, as per AEMO’s Consultation submission guidelines.
Scope
The Security Enablement Procedures build on the Provisional Procedures and, in addition to requirements in agreements to be entered by TNSPs, include:
- a methodology for how AEMO will determine the minimum system security requirements
- a methodology for how AEMO will enable the system security requirements in accordance with the principles set out in clause 4.4A.4, and
- how AEMO determines, and enables system strength services to support, the level of stable voltage waveform requirements.
This consultation also covers minor administrative and consequential amendments to the:
- SO_OP_3708 Non-market Ancillary Services
- SO_OP_3704 Pre-Dispatch Procedure
- Spot market operations timetable
- SO_OP_3718 Outage Assessment
- SO_OP_3715 Power System Security Guidelines, and
- Schedule of Constraint Violation Penalty Factors.
In addition, AEMO will publish a factsheet on the Tasmanian process for system security service enablement in late June for consideration during the second round consultation period.
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First stage documents
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Second stage documents
Consequential document changes
Minor and administrative consequential changes