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WEM Electricity Statement of Opportunities

The Wholesale Electricity Market (WEM) Electricity Statement of Opportunities (ESOO) is prepared annually and provides forecasts and analysis of peak demand and operational consumption in the South West interconnected system (SWIS) for the next 10 years. These forecasts are used to determine the Reserve Capacity Requirement (RCR), the amount of generation and DSM capacity required to meet the forecast demand for the relevant Reserve Capacity Cycle.

The ESOO also provides information on:

  • Generation and Demand Side Management (DSM) capacity operating in the SWIS
  • Planned capacity, including expansions and new Facilities under construction.
  • Capacity requirements and network development opportunities.
  • Key issues for potential developers. 

2019 WEM Electricity Statement of Opportunities

AEMO published the 2019 WEM ESOO report on 14 June 2019.  

The 2019 WEM ESOO report along with supporting documents including the data register and independent consultants’ reports are available in the table at the bottom of this page. 

Reserve Capacity Information Pack

The Reserve Capacity Information Pack is published annually at the same time as the ESOO, and includes the following information:

  • The Reserve Capacity Target for the Reserve Capacity Cycle.
  • A description of the Availability Curve to ensure that capacity is procured with sufficient availability.
  • Instructions on how to obtain various documents from the AEMO website.
2019 Reserve Capacity Information Pack

The 2019 Reserve Capacity Information Pack is available in the table at the bottom of this page, along with historical information packs.

The 2019 Reserve Capacity Information Pack contains the following information:

  • Reserve Capacity Targets for the 2021-22 Capacity Years.   
  • Availability Curve results for the 2020-21 and 2021-22 Capacity Years.
  • Information on the Expressions of Interest processes undertaken from January to May 2019.


AEMO welcomes feedback on the 2019 WEM ESOO.

Please forward any queries to:

Group Manager, WA Markets

PO Box 7096
Cloisters Square, Perth, 6850

 (08) 9469 9900
Email: wa.capacity@aemo.com.au

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