STTM

The Short Term Trading Market (STTM) is a market-based wholesale gas balancing mechanism to be established at defined gas hubs. The market uses bids, offers and forecasts to determine schedules for deliveries from the pipelines transmission users and the hubs. The market will set daily market prices and settle each hub based on the schedules and deviations from schedules.

AEMO will operate the STTM but will not operate the physical pipeline or network assets.


Recently Added to the STTM Website


STTM Rules, STTM Procedures and STTM Interface Protocol

A number of specific legislative instruments, such as the National Gas Rules and AEMO Market Procedures are required for the operation of the STTM. 

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STTM Notices

Formal notices issued by AEMO for the STTM will be published here.

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STTM Consultative Forum

The STTM Consultative Forum is the principal forum for consulting with industry and the provision of advise to AEMO on matters relating to the Short Term Trading Market.

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STTM General Overview and Publications

The Short Term Trading Market (STTM) is a market-based wholesale gas balancing mechanism to be established at defined gas hubs, initially in Sydney and Adelaide.

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Market Operator Service (MOS)

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Contingency Gas

For notification of Contingency Gas Trigger Events, call: 03 9609 8208 

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STTM Metering and Settlements

The STTM Metering and Settlements page contains information supporting the STTM settlements process, including the security format, interest rate definition, settlement calendar and trading limit definition.

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Matched Allocation Agreements

Formal notices issued by AEMO regarding Matched Allocation Agreements.

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STTM Establishment Project - Archive 

The STTM was a major cross-industry project to design, build and implement a new, unique, wholesale market in gas, as well as requiring changes to arrangements in the existing gas retail markets. Note with the commencement of the STTM on 1 September 2010, the STTM Establishment Project has concluded, and operation of the STTM now resides within the AEMO business units. 

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STTM Working Groups and Committees View More