Under clause 5.20.8 of the NER, AEMO is required to publish an annual ‘Transition Plan for System Security’ (TPSS). We have collated various articles relating to this here – including:
1) The first TPSS was published on 2 December 2024.
2) The Reliability Panel provided its comments on this first iteration of the plan on 23rd April 2025:
(a) Under the NER, the Reliability Panel comments (if any) must be within six months of the TPSS’s publication.
(b) The Rules provide that the next iteration of the TPSS must publish and respond to the Panel’s comments.
The Reliability Panel responded to the AEMO’s first iteration of the annual Transition Plan for System Security (TPSS) with comments with this 4-page letter on Wednesday 23rd April 2025.
The 2024 Transition Plan for System Security ties together many of the threads identified in previous AEMO studies in developing this plan for managing system security in a low emission power system.