The AER made the Paired Generation services component revenue determination for Transgrid under the Electricity Infrastructure Investment Act 2020 (NSW) in December 2023. This revenue determination included adjustment events/mechanisms that allow for changes to the schedule of payments over the project term.

On 31 March 2026, Transgrid submitted to the AER a revenue adjustment proposal to reflect the occurrence of: 

• Adjustment event 3 – PG Test,
• Adjustment event 6 – delay in commencing the PG Service Period, and
• Adjustment event 7 – Additional Paired Generation Provider. 

We have assessed Transgrid’s revenue adjustment proposal in accordance with the Electricity Infrastructure Investment Regulation 2021 (NSW) and are satisfied that:

• the triggers for each adjustment event have occurred,
• the proposal accurately calculates the adjustments to be applied to the schedule of payments, and
• the adjustments have been carried out in accordance with our Revenue determination guideline for NSW contestable network projects (Guideline) and the contractual arrangements entered into by Transgrid. 

Therefore, we have adjusted the amounts payable to Transgrid under the Paired Generation service component revenue determination. 

We have decided not to publish the updated schedule of payments consistent with our previous decisions on the Waratah Super Battery project. However, we will publish an update of the aggregated revenue for the contestable components of the Waratah Super Battery project in May 2026.