New South Wales: December 2025 - February 2026

Commencement date: 
31 August 2022
Regulatory period: 
1 December 2025 to 28 February 2026


The Retailer Reliability Obligation (RRO) is designed to support reliability in the National Electricity Market (NEM). In particular it encourages retailers, and some large energy users, to establish contracts for their share of demand for a prescribed period. If the Australian Energy Market Operator (AEMO) identifies a reliability gap in a region of the NEM as part of its Electricity Statement of Opportunities (ESOO) it must provide the Australian Energy Regulator (AER) with a reliability instrument request.

T-3 Reliability Instrument

On 24 October 2022 the AER made a T-3 Reliability Instrument for New South Wales from 1 December 2025 to 28 February 2026 inclusive. 

The T-3 Reliability instrument applies to the New South Wales region of the NEM for the trading intervals between 2 pm and 9 pm Eastern Standard Time, each weekday during the period 1 December 2025 to 28 February 2026 inclusive. AEMO's one-in-two year peak demand forecast for the forecast reliability gap period is 13,133 MW (reported on a 50% Probability of Exceedance, ‘as generated’ basis).

Market Liquidity Obligation

The Market Liquidity Obligation (MLO) is a market making requirement designed to facilitate transparency and liquidity in the trading of electricity futures contracts relating to a forecast reliability gap. The MLO operates between T-3 and T-1 when the Retailer Reliability Obligation (RRO) is triggered. MLO generators under the MLO are required to post bids and offers, with a maximum spread, on an approved exchange for standardised products that cover the period of the gap.

In New South Wales the MLO generators are EnergyAustralia, AGL and Snowy Hydro. The MLO begins on 31 October 2022..