Western Australia’s (WAs) South West Interconnected System (SWIS) reached a record 55.78% renewable energy contribution in November 2025, eclipsing a previous record of 49%, set in November 2024.
It was the first time WA has achieved a majority share of energy from renewables, which saw prices also fall significantly due to the increased use of renewables.
Average prices for major customers were down by almost 30% on the previous month.
WA Premier Roger Cook said the state government is delivering record investment in WA’s transmission infrastructure to connect households and businesses to cheaper renewable energy.
“Becoming a renewable energy powerhouse underpins our plans to diversify our economy, ensuring it continues to be the strongest in the nation,” Cook said.
The government is on track to exit state-owned coal by 2030 and deliver large-scale renewables that will continue to increase renewable energy output and keep downward pressure on energy prices.
WA Energy and Decarbonisation Minister Amber-Jade Sanderson said renewable energy is the cheapest form of generation, and renewables and storage firmed by gas when needed is the least cost energy mix for households and businesses.
“The latest renewable generation figures and average energy price for November show what can be achieved as more renewable energy generation enters our power grid,” Sanderson said.
“We are unlocking more renewable energy through transmission infrastructure upgrades and expansion, which will continue to put downward pressure on prices.”
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com.
By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.
Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.
You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.
Further information on data privacy can be found in our Data Protection Policy.