In conjunction with the Independent Market Operator (the IMO ), the Authority is responsible for performing surveillance on the Wholesale Electricity Market (WEM) in the South West Interconnected System (SWIS) of Western Australia.

This function is governed by three legislative instruments, namely the Electricity Industry Act 2004, Electricity Industry (Wholesale Electricity Market) Regulations 2004 and the Wholesale Electricity Market Rules.

The Authority has a role in monitoring the Wholesale Electricity Market operations and conducting reviews to ensure the market is effectively meeting the Wholesale Market Objectives which are defined in the Wholesale Market Rules.

The Authority will work closely with the IMO to perform this function.

Enquiries or feedback regarding the Authority's Wholesale Electricity Market Surveillance functions may be directed to the Authority's contact person .

The IMO has published its report on the reserve capacity mechanism which provides an insight into the performance of the reserve capacity mechanism and then projects the potential capacity position out to the 2014/15 reserve capacity year and details the composition of the 2,184MW of new capacity which has entered, or is committed to enter the Wholesale Electricity Market.