On 13 February 2026, Transgrid applied to the AER to revoke and substitute its transmission revenue determination for the 2023–28 regulatory control period.
Reviews of the submission, including confidentiality checks, have been undertaken prior to publishing to ensure that the application is suitable for consultation.
Transgrid is seeking to recover an additional $1,142 million ($2022–23) in capital expenditure from its customers. This is in addition to the $2,121 million ($2022–23) forecast for the NSW component of PEC in our April 2023 final decision.
This would result in a proposed increase of $173 million in revenue to be recovered from consumers in 2027–28, the final year of Transgrid’s current regulatory period. Transgrid estimates that this would increase residential customer bills by $18 in 2027–28.
The additional capital cost would also have longer term bill implications for customers over future regulatory periods as the total cost would be incorporated into Transgrid’s regulated asset base.
Under the National Electricity Rules, we are required to make a decision within 40 business days of receiving the application. However, there are extension provisions that can be applied, subject to the complexity of the proposal and whether further information is required to assess the application.
