System Strength Requirements Methodology and System Strength Impact Assessment Guidelines amendments consultation

Consultation timeline

AEMO intends to seek further feedback on specific issues before releasing the draft SSIAG, and will advise when that additional consultation material is released.

Overview

AEMO is consulting on the System Strength Requirements Methodology, System Strength Impact Assessment Guidelines and the Power System Stability Guidelines in accordance with clauses 5.20.6, 4.6.6, 4.3.4 and the Rules consultation procedures in rule 8.9 of the National Electricity Rules (NER).  

Background

AEMO sees system strength as the ability of the power system to maintain and control the voltage waveform at any given location in the power system, both during steady state operation and following a disturbance.

In October 2021, the AEMC released its final determination on the efficient management of system strength on the power system. This has introduced new rule requirements for the System Strength Requirements Methodology (SSRM) and System Strength Impact Assessment Guidelines (SSIAG), as well as consequential changes to the Power System Stability Guidelines (PSSG). AEMO has begun consultation on the proposed changes to these documents.

Submissions on the Issues Paper have now closed and are published below. Confidential submissions have not been published.

Due to the number and complexity of issues to be addressed and following discussions with several participants and market bodies, the original consultation timeframe will be extended. AEMO is now targeting release of the draft SSRM and PSSG before the end of July 2022. AEMO intends to seek further feedback on specific issues before releasing the draft SSIAG, and will advise when that additional consultation material is released.