Since this web page was published, the Wholesale Electricity Market (WEM) Rules have been renamed the Electricity System and Market (ESM) Rules, and the Electricity Industry (Wholesale Electricity Market) Regulations 2004 (WEM Regulations) have been renamed the Electricity Industry (Electricity System and Market) Regulations 2004 (ESM Regulations). Changes have not been made to this web page to reflect this updated name.
Whole of System Planning provides an informed view on what Western Australia’s principal electricity system, the South West Interconnected System (SWIS), might look like over the coming decades.
The Minister for Energy released the inaugural Whole of System Plan (WOSP) in October 2020, developed by a project team led by Energy Policy WA with representatives from the Australian Energy Market Operator (AEMO) and Western Power.
On 1 July 2021, the Coordinator of Energy (Coordinator) was given ongoing responsibility for the WOSP under the Electricity System and Market (ESM) Rules. The next WOSP is required to be published by 30 September 2027, and at least once every five (5) years thereafter.
Print this page
