On 26 June 2025, we published our final decision on the application from APA Group to convert the service of the Basslink interconnector from a market network service to a prescribed transmission service. Given the timing of our conversion decision, the regulatory period for which we are making a revenue determination for Basslink is 2026–30. We invited APA Group to provide updates to their revenue proposal in response to the shortened regulatory control period. These updates can be found below.
Model updates
Basslink - Forecast Opex model - Post conversion decision v2
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Basslink - Forecast Capex Model - Post Conversion Decision v2
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Basslink - RFM - 07 to 16 - Post Conversion Decision
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Basslink - RFM - 17 to 26 - Post Conversion Decision
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Consolidated updates
On 29 August 2025, APA Group provided a consolidated updates package detailing the revenue proposal updates provided to the AER following our final conversion decision. Some new elements were included in the 29 August update, they will be considered alongside the revised proposal.
Basslink - Overview of the updated Revenue Proposal - 29 August 2025
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Basslink - Attachment 1 - Updated PTRM - 29 August 2025
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Basslink - Attachment 2a - Updated RFM - 07 to 16 - 29 August 2025
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Basslink - Attachment 2b - Updated RFM - 17 to 26 - 29 August 2025
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Basslink - Attachment 3 - Updated Forecast Capex Model - 29 August 2025
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Basslink - Attachment 4 - Updated Forecast Opex Model - 29 August 2025
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Basslink - Attachment 5 - Updated Control & Protection System Business Case - 29 August 2025
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Basslink - Attachment 6 - Repair Vessel Cost Pass Through Event - 29 August 2025
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