• Stakeholder consultation
  • About AEMO
  • Careers and Education
  • Media Centre
  • Contact us
  • Market Notices
    • Stakeholder consultation
    • About AEMO
    • Careers and Education
    • Media Centre
    • Contact us
    • Market Notices
  • Australian Energy Market Operator

    Australian Energy Market Operator Australian Energy Market Operator
    • Electricity
      • 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.
      • National Electricity Market
        • Data dashboard
        • Data
        • Distributed Energy Resources Program
        • Five Minute Settlement and Global Settlement
        • Initiatives
        • Participant information
        • Cyber Security
        • Network connections
        • Security and reliability
        • Emergency management
        • Settlements and payments
        • Planning and forecasting
        • Strategic partnerships
        • Power of Choice
        • Retail and metering
        • Events and reports
      • Wholesale Electricity Market (WA)
        • Data dashboard
        • Data
        • Compliance and audit
        • Participant information
        • Security and reliability
        • Cyber Security
        • Settlements and prudential monitoring
        • Planning and forecasting
        • Reserve capacity mechanism
        • Dispatch and market notices
        • Procedures
        • Archive Section
      • IT Systems
        • NEM
        • IT change and release management
        • aseXML Standards
    • Gas
      • 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.
      • Declared Wholesale Gas Market
        • Data dashboard
        • Data
        • Market operations
        • Participant Information
        • Victorian gas operations
        • Settlements and payments
        • Policies and procedures
        • Market audit reports
        • Gas Market Reports and Notices
      • Short Term Trading Market
        • Data dashboard
        • Data
        • Participant information
        • Market operations
        • Settlements and payments
        • Policies and procedures
        • Market audit reports
        • Gas market reports and notices
      • Gas Supply Hubs
        • Data dashboard
        • Data
        • Participant information
        • Market operations
        • Settlements and payments
      • National planning and forecasting
        • National Gas Forecasting Report
        • Gas Statement of Opportunities
        • Victorian Gas Planning Report
        • WA Gas Statement of Opportunities
      • Gas Retail Markets
        • Data
        • Participant information
        • Market procedures
        • Market audit reports
      • Pipeline Capacity Trading
        • Guides and information
        • Participant information
        • Procedures
        • Preliminary Consultation
        • Specification of Service Points, Zones and Segments
      • Gas Day Harmonisation
      • WA Gas Services Information
        • GSI participant information
        • GSI procedures
        • GSI Compliance and Audit
      • Gas Bulletin Board
        • Reports
        • Notices
        • Information
        • Markets Portal
        • Archive
      • Western Australia Gas Bulletin Board
      • Emergency management
        • National role
        • Victorian role
      • IT systems
        • IT change and release management
        • User Guide to MIBB Reports
        • aseXML Standards
    • Wholesale Electricity Market (WA)
    • Security and reliability
    • Outages and commissioning
  • Share this page
  • Outages and commissioning

  • In this section
    • In this section
      Security and reliability
      • Current delegations
      • Ancillary services
      • Ancillary Services Parameters
      • Outages and commissioning
      • Dispatch advisories
      • Power system disturbances
      • Facility commitment notification exemptions
  • Scheduled outages

    Under Chapter 3 of the market rules, System Management must assess outages that are on the equipment list and approve or reject those outages. Market participants us the Market Participant Interface (MPI) to enter information on equipment that needs to be taken out of service due to an outage, and to request for those outages to be approved.

    The Market Participant Interface can be accessed here. Guides for the Market Participant Interface and Network Operator Interface can be accessed below.

    • Network Operator Interface Requestor User Guide: Primary Works
    • Network Operator Interface Requestor User Guide: Secondary Works
    • New MPI Generator and Loads User Guide

    Occasionally a Market Participant may require access to the network to facilitate work as part of their facility outage. To coordinate switching of the Western Power Network, information on access to the Western Power Network can be found here.

    As part of outage transparency market rules, System Management must also publish all generator outage details in real time (as outage status information changes), and historical outage records. These can be accessed on the WEM data pages.

    Forced outages

    Under Chapter 3.21 of the market rules, participants must lodge forced outage information with System Management as soon as practicable.

    Market Participants may subsequently apply to System Management to convert their forced outage to a consequential outage, if they believe that the forced outage was as a result of either:

    • A forced outage to another rule participant's equipment.
    • A planned outage to a network operator.

    Information on the conversion process can be found in the Power System Operating Procedure – Facility Outages.

    Projected assessment of system adequacy (ST PASA and MT PASA)

    The projected assessment of system adequacy (PASA) is a forecasting study undertaken by System Management. It contains statistical load forecast information against projected available capacity figures (allowing for quantities of non-scheduled generation capacity based on historical figures).

    System Management undertakes two versions of the PASA. The short term PASA is published by AEMO every Thursday and is a three-week in advance forecast, and the medium term PASA is published by AEMO on the 15th day of every month and forecasts three years in advance. Reports for both versions can be found in the WEM data pages.

    Commissioning tests

    The Commissioning test plan template below must be completed for every request by a market participant to perform a Commissioning test.

    • Commissioning Test Plan template

    For commissioning test plans that include technical rule compliance tests or tests which might have an impact on the operation or performance of the power system, please note that test procedures must also be submitted to Western Power System Analysis for approval prior to testing, and to coordinate witnessing of tests if required.

    Refer to Western Power Technical Rules, in particular clauses 3.3.9, 4.1.3, 4.1.5 and 4.2.4, for further information. 

      • Electricity
      • Electricity Market
      • Wholesale Electricity Market
      • WEM
    • Electricity
    • Gas
    • Stakeholder consultation
    • About AEMO
    • National Electricity Market
    • Wholesale Electricity Market (WA)
    • IT Systems
    • Declared Wholesale Gas Market
    • Short Term Trading Market
    • Gas Supply Hubs
    • Gas Bulletin Board
    • Western Australia Gas Bulletin Board
    • WA Gas Services Information
    • Gas Retail Markets
    • Emergency management
    • IT systems
    • Industry forums and working groups
    • Consultations
    • Our Vision, Mission, and Values
    • Board and governance
    • Our Executive Leadership Team
    • About the industry
    • AEMO History
    • Glossary of terms
      • Careers and Education
      • Media Centre
      • Contact us
      • © 2019 AEMO
      • Privacy and Legal Notices
      • Site by Adelphi Digital
      • Return to top