Retailer reliability obligation - Draft interim market liquidity obligation guideline

Retailer Reliability Obligation
Date initiated: 
15 April 2019
Effective date: 
31 August 2019
General enquiries - Retailer Reliability Obligation


The Australian Energy Regulator (AER) is supporting improving reliability in the NEM by implementing the Retailer Reliability Obligation (RRO) alongside the Energy Security Board (ESB).

The ESB was tasked to develop the National Electricity Rules (the Rules) necessary to implement the Obligation. The draft Rules were published for stakeholder consultation on 8 March 2019. A revised rules package was released on 9 May 2019. The final Rules are proposed to be in place by 1 July 2019.

As set out in the Rules, the AER is responsible for developing a number of Guidelines on certain aspects of the RRO.

Draft Interim Market Liquidity Obligation (MLO) Guideline

As set out in draft Rule 4A.G.25, the AER must create a MLO Guideline. The guideline sets out the AER’s approach to maintaining the MLO register, information requirements of participants, qualifying traded products and trading windows, assessing requests for approval of additional trading exchanges and standardised products, as well as its approach towards monitoring compliance with the obligation.

A final Interim MLO Guideline, taking in to account stakeholder submissions, will be published by 31 August 2019.


Submissions on the Draft Interim MLO Guideline closed on 10 May 2019


As part of the consultation on the guideline, a workshop was held on 24 May 2019.