On 28 November 2025, we released our draft decision on AGN's (SA) access arrangement proposal for the 2026–31 period commencing 1 July 2025.
Draft decision
AER - Draft decision - AGN (SA) access arrangement 2026–31 - Overview - November 2025
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AER - Draft decision - AGN (SA) access arrangement 2026–31 - Attachment 1 – Capital base, Regulatory depreciation and Corporate income tax - November 2025
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AER - Draft decision - AGN (SA) access arrangement 2026–31 - Attachment 3 - Operating expenditure - November 2025
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AER - Draft decision - AGN (SA) access arrangement 2026–31 - Attachment 4 - Demand - November 2025
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AER - Draft decision - AGN (SA) access arrangement 2026–31 - Attachment 5 - Reference services, tariffs and non-tariff components - November 2025
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AER - Draft decision - AGN (SA) access arrangement 2026–31 - Attachment 6 - Capital expenditure sharing scheme - November 2025
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AER - Draft decision - AGN (SA) access arrangement 2026–31 - Attachment 7 - Efficiency carryover mechanism - November 2025
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AER - Draft decision - AGN (SA) access arrangement 2026–31 - Attachment 2 - Capital expenditure - November 2025
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Models
Our models relating to AGN's draft decision.
AER -Draft decision - AGN SA Access arrangement 2026–31- Post Tax Revenue Model - November 2025
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AER - Draft decision - AGN SA Access arrangement 2026–31 - Roll Forward Model - November 2025
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AER - Draft decision -AGN SA Access arrangement 2026–31 - Depreciation Model - November 2025
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AER - Draft decision - AGN (SA) Access arrangement 2026–31 - opex model - November 2025
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AER - Draft decision - AGN SA Access arrangement 2026–31 - CESS Model - November 2025
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AER - Draft decision - AGN (SA) Access arrangement 2026–31 - ECM model - November 2025
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Consultant reports
We commissioned the following reports, which we took into account when making our draft decision for AGN.
Deloitte Access Economics - Labour price growth forecasts - July 2025
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Frontier Economics - Review of gas demand forecasts for Australian Gas Network (SA) - November 2025
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Stakeholder submissions
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Interested stakeholders are invited to make a submission on both our draft decision and AGN’s revised proposal (due 14 January 2026).
Submissions will close on Friday, 13 February 2026 and can be emailed to aergasresets2026-31
aer [dot] gov [dot] au (aergasresets2026-31[at]aer[dot]gov[dot]au).
Public forum
An online public forum was scheduled for Monday 8 December 2025 for our 2026-31 gas access arrangement draft decisions on Evoenergy, AGN (SA) and Amadeus.
Given limited stakeholder interest, this public forum did not proceed as originally indicated.
We remain committed to engaging with stakeholders and encourage stakeholders who are interesting in discussing our draft decisions, or wish to provide feedback via alternative methods to reach out to Reset Coordination team on aergasresets2026-31aer [dot] gov [dot] au (aergasresets2026-31[at]aer[dot]gov[dot]au)