The AER collects information from regulated businesses in order to undertake its functions. The AER publishes non-confidential information received from regulated businesses to support effective and transparent regulatory processes and ensure stakeholders can access information on issues affecting their interests. See Performance reporting for more.
On 5 April 2024, the AER made Annual Information Orders (Orders) and published the Orders with an accompanying decision. The Orders impose annual reporting obligations on regulated electricity distribution networks, transmission networks, and interconnectors and are made by the AER using its information gathering powers under the National Electricity Law (NEL).
The Orders are the key output from the AER's Networks Information Requirements Review. The Review, beginning in March 2022, focussed on the information we collect from and about regulated electricity networks.
To find out more about the review including consultation that occured in the lead up to development of the Annual Information Orders, visit our Networks Information Requirements Review webpage.
2025-26 Data submission workbooks
The AER has updated the 2025-26 data submission workbooks after consultation with relevant NSPs. Workbooks for TNSPs were made available on 13 March 2026, and workbooks for DNSPs, PWC and Interconnectors will be made available in May 2026.
We have also published supporting information for the 2025-26 information collection.
2026-27 Update to Annual Information Instruments
The AER will release Draft Annual Information Instruments (Orders and Notice) for consultation in March 2026. This update will cover the 2026-27 and 2027-28 reporting years.