AEMO releases ‘2025 Transition Plan for System Security’
On Monday 1st December 2025 (after it was flagged in some media articles) the AEMO released its 154-page '2025 Transition Plan for System Security'.
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.
On Monday 1st December 2025 (after it was flagged in some media articles) the AEMO released its 154-page '2025 Transition Plan for System Security'.
I’ve been away for the past week and am not back at work yet, but seeing the headline ‘AEMO warns of NSW blackouts if Eraring closes in 2027’ by Angela MacDonald-Smith in the AFR...
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.