The Australian Energy Regulator (AER) is supporting improving reliability in the National Electricity Market (NEM) by implementing the Retailer Reliability Obligation (RRO).
As set out in the National Electricity Rules (the Rules), the AER is responsible for developing a number of guidelines on certain aspects of the RRO.
Interim market liquidity obligation Guidelines
The interim market liquidity obligation (MLO) Guidelines set out the AER’s approach to monitoring compliance with the RRO by MLO generators, approval of additional MLO products and MLO exchanges, and performance exemptions.
On 30 August 2019 we published the interim MLO Guidelines.
Minor, administrative changes were made to these Guidelines in October 2024 to account for the Integrating Energy Storage Systems rule change.
MLO register
The Rules require the AER to develop and publish the MLO register in accordance with the MLO Guidelines.