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The Wholesale Electricity Market (WEM) is Western Australia’s energy retail market, which is currently operated by the Australian Energy Market Operator (AEMO).

The WEM controls the supply and trade of wholesale electricity between retailers and generators, such as Synergy and Horizon Power.

In WA, electricity retailers buy power at a wholesale price from electricity generators and pay Western Power a fee for transporting that electricity through our transmission and distribution networks.

While electricity prices are set by the government, the key objective of the WEM is to ensure that power continues to be generated and supplied in a secure, reliable, efficient, and cost-effective way for customers.

To learn more about how the WEM operates, visit the Australian Energy Market Operator (AEMO) website