The Challenge
A government-owned transmission network operator sought independent expertise to review and assure the development of a Regulatory Investment Test for Transmission (RIT-T) submission. The submission focused on a suite of operational tools intended to uplift network visibility, situational awareness, and system control capabilities—critical enablers of a more dynamic, decentralised future grid. The client required confidence that the submission would stand up to regulatory scrutiny while also addressing broader stakeholder expectations, particularly in a complex and evolving investment landscape.
Our Approach
Devbase Executive Advisors were engaged to conduct an independent assurance review of the draft RIT-T documentation. Our review covered:
- Alignment with the National Electricity Rules and Regulatory Investment Test for Transmission (RIT-T) guidelines
- Clarity and justification of the investment need, benefits, and timing
- Testing the reasonableness of options assessment, cost-benefit analysis, and scenario modelling
- Framing of key assumptions in the context of system operations and future needs
In parallel, we considered how the proposal might be viewed by consumer advocacy groups, particularly regarding the prudent and efficient selection of operational technologies justified under the AER's RIT-T framework. This involved stress-testing the submission’s narrative and evidence base to ensure the investment options reflected best value for consumers and aligned with public expectations of accountability and efficiency.The review was also made more complex by shifts in broader system priorities and policy settings, requiring dynamic consideration of timing, risk and staging.
Devbase Impact
Our contribution enabled the client to present a robust, independently validated investment case to the regulator and stakeholders. By leveraging our deep experience in regulatory submissions, grid operations, and stakeholder expectations, we added clarity, rigour, and strategic insight. Our assurance process strengthened the credibility of the proposal and gave internal stakeholders confidence that it would withstand challenge—both from the regulator and from consumer representatives.
