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This is the AEMO test site. Please visit our live website for the most current data and reports.

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Wholesale Electricity Market (WEM)

The WEM supplies electricity to the south-west of Western Australia via the South West Interconnected System (SWIS). A unique feature of the WEM is the Reserve Capacity Mechanism, which ensures that there is enough generation to meet demand at all times.

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Understanding the WEM

The WEM provides electricity to more than 1.1 million businesses and households in WA.

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