The Australian Energy Market Commission (AEMC) has published a consultation paper for a review of the Integrated System Plan (ISP) framework (the Review). The AEMC is required to complete the Review by 1 July 2027 under clause 11.126.10 of the National Electricity Rules (NER).  

The ISP framework is set out in rules 5.16A, 5.22 and 5.23 of the NER which include:

• the application of the regulatory investment test for transmission to actionable projects  
• the content, methodology and governance of the ISP and  
• how disputes relating to the ISP are addressed.

AEMO’s ISP has played a central role as a long term guide to, and network plan for, the efficient development of the electricity system since 2018. It has evolved over time and the ISP today, and its place within the broader electricity network planning frameworks, reflects a number of reviews and reform processes. These have aimed to ensure the ISP keeps pace with the evolving context of the energy transition.

The purpose of the Review is to assess how the ISP framework best contributes to achieving the National Electricity Objective.

The consultation paper provides the context for the Review, an overview of the ISP and our thematic approach to categorise issues raised over the course of the Review.

Submissions to the consultation paper are due by 19 February 2026.

We value stakeholder feedback and input and there will be multiple options and opportunities to provide feedback through the review process. Please use the contact project leader link on this page if you wish to contact the project team directly.