An upgrade of Waikiki's substation is underway as part of a $10.4 million investment by Western Power to help improve power reliability.
The upgrade is one of eight at substations across the state following the unprecedented load conditions during the Christmas 2021 heatwave.
Three substation upgrades at Clarkson, Byford and Yanchep have been completed with reinforcement work being done to mitigate capacity overloads.
Work will soon start at the Waikiki substation, which is an important power supply in the southern area.
Other works planned include installing new feeders at Mandurah, Byford, Waikiki and Henley Brook substations and installing a new cable and changes to configuration at Yanchep.
"Western Power's network experienced unprecedented load conditions during Christmas last year, which resulted in outages that impacted around 107,000 households and businesses," Energy Minister Bill Johnston said.
"The outages occurred during record-breaking temperatures - meaning there was an abnormally high use of air conditioners and fans, which put pressure on the network.
"Following the heatwave and in line with recommendations from the independent review into the Christmas power outages, Western Power has mitigated any risks and accelerated works prior to the coming summer season.
"A thorough review has been undertaken looking at the most impacted locations, based on customer numbers and outage times in the cities of Swan, Mandurah, Wanneroo, Armadale and Gosnells."
Police issue 31,000 driving infringements in first month of new AI cameras
Works underway on Rockingham and Safety Bay High School redevelopments
New measles exposure sites revealed in Bunbury
Dawesville man charged after allegedly leaving his elderly Great Dane to suffer painful conditions
Good Samaritan sought by police after helping teen during robbery in Baldivis
Under-16s social media ban now in force
Desperate search continues for missing Bunbury FIFO worker
Passengers now able to use credit, debit cards to tag on and off WA's public transport
New floating jetty speeds up emergency response times for Marine Rescue Mandurah