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      • AEMO operates Australia's National Electricity Market (NEM), the interconnected power system in Australia’s eastern and south-eastern seaboard, and the Wholesale Electricity Market (WEM) and power system in Western Australia.
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      • AEMO operates gas retail markets in New South Wales and the Australian Capital Territory, Queensland, South Australia, Victoria, and Western Australia. AEMO also operates wholesale gas markets in south-eastern Australia, those being the Declared Wholesale Gas Market in Victoria (DWGM), the Short Term Trading Market in Adelaide, Brisbane and Sydney (STTM), and the Gas Supply Hub (GSH), whose trading locations are based at Wallumbilla in Queensland, and Moomba in South Australia. AEMO also operates the Natural Gas Services Bulletin Board (GBB), and is system operator of the Victorian Gas Declared Transmission System. AEMO is also responsible for Gas Services Information functions in Western Australia.
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  • Settlements and prudential monitoring

  • In this section
    • In this section
      Clearing payments
      Credit support and reserve capacity security
      Investment policy and bank bill rate
      Market accounting reports
  • AEMO is responsible for the settlement of all Wholesale Electricity Market (WEM) transactions, other than energy and capacity that is bilaterally traded. AEMO is also responsible for monitoring Market Participants' market settlements transactions, to ensure each Market Participant has security to adequately cover their operational exposure in the market.

    Further detail on these Settlement and Prudential Requirement processes can be found in the Market Procedure: Settlements and Market Procedure: Prudential Requirements available on the WEM Procedures page.

    Market Participants who intend to submit a Notice of Disagreement for either a Short Term Energy Market (STEM) or Non-STEM Settlement Statement must lodge a Notice of Disagreement form found below. This form requires the information relating to clause 9.20.4 of the WEM Rules.

    Notice of Disagreement Form [155kB]

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