Victorian System Strength requirement regulatory investment test for transmission

In our role as the System Strength Service Provider for Victoria, AEMO is undertaking the Victorian System Strength Requirement Regulatory Investment Test for Transmission (RIT-T) to address system strength requirements in Victoria from December 2025.

The RIT-T process is a regulatory mechanism that applies an economic cost-benefit test on new transmission electricity infrastructure proposed for the NEM. It is designed to identify the most economically efficient investment option, so the investment meets the long-term needs of consumers.

When not an actionable Integrated System Plan (ISP) project, the RIT-T process requires transmission network planners considering an investment to publish three reports:

  1. The Project Specification Consultation Report (PSCR) seeks feedback and advice on the identified need for transmission.
  2. The Project Assessment Draft Report (PADR) identifies and seeks feedback on the preferred investment option.
  3. The Project Assessment Conclusions Report (PACR) presents the transmission planner’s recommended solution to deliver the highest net economic benefit and intended course of action.

Project Specification Consultation Report

AEMO published the PSCR for this Victorian System Strength Requirement RIT-T in July 2023, accompanied with a request for information (RFI) from system strength service providers.

AEMO is committed to working with industry, government, investors and consumers to secure and shape Australia’s energy future in the long-term interests of consumers. We value your feedback on this RIT-T and are committed to ongoing dialogue with our stakeholders.

We will continue to provide updates as we move through this program and welcome your thoughts via our stakeholder engagement activities which will be announced on this page in the coming months. For more information, contact

Please see below non-confidential submissions to the PSCR:

System Strength PSCR & RFI Consultation Webinar

On 9 August 2023, AEMO held a webinar to inform stakeholders of the key elements of the System Strength PSCR and RFI.  The slides, presentation recording and summary of the webinar questions and answers are below:

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