ISP Methodology Consultation

Consultation timeline

Published every two years, AEMO’s Integrated System Plan (ISP) is a roadmap for the transition of the power system that underpins the National Electricity Market (NEM), with a clear plan for essential infrastructure that will meet future energy needs. The ISP draws on a comprehensive set of inputs, including all relevant federal and state government policies for emissions reduction, and seeks the optimal mix of generation, storage and network infrastructure investment.

This consultation on the ISP Methodology provides an opportunity to ensure that the modelling and cost benefit analysis approaches used to prepare the ISP are fit for purpose in the context of Australia’s energy transition.

The ISP Methodology is being updated to complete a 4 yearly review requirement and to incorporate the Energy Ministers’ response to the review of the ISP.

AEMO welcomes stakeholder feedback on the ISP Methodology, including on the changes proposed in the issues paper, namely:

• Integrating gas in the ISP
• Improving demand side modelling
• Assessing actionability of transmission projects.
• Enhancing selected ISP modelling approaches.

Draft ISP Methodology submissions are due in PDF format to ISP@aemo.com.au by 5:00pm (AEST) on Monday 14 April 2025. Please note that submissions will be published, other than confidential material, subject to AEMO’s Consultation submission guidelines.