Decisions

This page is a collection of all AER regulatory decisions.

Use the filters and keyword search to find open, current and historical documents that detail AER decisions on matters such as revenue determinations, access arrangements, pricing proposals, tariff variations, cost allocation methods, cost pass throughs and contingent projects.

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10 result(s), displaying 1 to 10

South Australia: January - March 2025

The Retailer Reliability Obligation (RRO) is designed to support reliability in the National Electricity Market (NEM).

Retail Reliability Obligation

Revoked

South Australia: January - March 2028

On 2 January 2025, the South Australia Minister for Energy and Mining triggered the RRO in South Australia for the first quarter of 2028.

Retail Reliability Obligation

Open

Ring-fencing guideline (electricity transmission) 2025

The AER has released version 5 of the ring-fencing guideline for electricity transmission.

Ring-fencing

Current

Ring-fencing guideline (electricity distribution) 2025

The AER has released version 4 of the ring-fencing guideline for electricity distribution.

Ring-fencing

Current

Jemena - Ring Fencing Decision - Phillip Creek Compressor Station

The AER has made a final decision to grant exemptions to Jemena from their ring-fencing obligations for the Phillip Creek Compressor Station.

Ring-fencing

Current

ElectraNet Mid North South Australia REZ Expansion Stage 1a - Early Works Contingent Project

On 28 March 2025, ElectraNet submitted its Mid North South Australia Renewable Energy Zone Expansion Stage 1a contingent project application to the AER.

Contingent projects

Open

APTNT - Revocation of ring fencing exemption

The AER has made a draft decision to revoke an exemption granted to APT Pipelines NT Pty Ltd from ring-fencing requirements under the National Gas Law.

Ring-fencing

Current