Short Term Trading Market

The Short Term Trading Market (STTM) is a market-based wholesale gas balancing mechanism 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 sets daily market prices and settles each hub based on the schedules and deviations from schedules.

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

 

STTM Reviews

Phase 2 - Intraday review

In accordance with Rule 491 of the National Gas Rules AEMO is undertaking a review of the available options for additional or alternative STTM market processes that would operate within a gas day. This review is Phase 2 of the STTM reviews.

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Market parameters

In accordance with rule 492 of the National Gas Rules, the Australian Energy Market Operator (AEMO) is conducting a review of market parameters in the Short Term Trading Market (STTM) and in conjunction with this review AEMO is taking the opportunity to review the market parameters for the Declared Wholesale Gas Market (DWGM).

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Phase 1

AEMO has completed the first prescribed review of the operation of the STTM and STTM demand hubs and gas market information.

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STTM Reviews

AEMO is conducting a staged review of the operation of the STTM and STTM demand hubs. While prescribed by rules 489 and 490 of the NGR, the review will consider broader gas market development issues in the context of developing efficient energy markets.


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STTM Notices

Notices issued by AEMO for the STTM will be published here.


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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)

For the purposes of rule 398(1) of the National Gas Rules (NGR), AEMO will publish a notice requesting MOS increase offers and MOS decrease offers from STTM Shippers for each STTM pipeline, no later than 20 business days before the start of a MOS period, which is the first day of every month.


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STTM Pipeline Operator's MOS Allocation Service Costs


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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 Establishment Project 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. With the commencement of the STTM on 1 September 2010 the Project has concluded, and operation of the STTM now resides with the relevant AEMO business units.


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QLD STTM Project

The QLD STTM Project was responsible for the implementation of the STTM at the Brisbane hub.

The project coordinated amendments to wholesale and retail market rules, procedures and market systems to support the implementation of the Brisbane hub.


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