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Wholesale Electricity Market

The Wholesale Electricity Market (WEM) in the South West interconnected system commenced in September 2006.

The operator of the WEM is the Australian Energy Market Operator (AEMO). The operation of the WEM is governed by the Wholesale Electricity Market Rules. The Rules cover the roles and functions of the AEMO and guide the operation of the WEM.

The ERA’s role with respect to the WEM, includes:

  • monitor market participant behaviour;
  • undertake approvals requested by the AEMO;
  • undertake reviews required by the Market Rules;
  • provide an annual report to the Minister for Energy on the effectiveness of the WEM; and
  • compliance and enforcement.