Solar

Australia solar output overtakes wind power in September for first time

Published by

Australia’s rapidly growing fleet of rooftop and utility-scale solar power plants reached a major milestone in September, overtaking wind for the amount of electricity generated in the month.

According to data provided by Dylan McConnell from the Climate and Energy College in Melbourne, which puts together the OpenNem live data feed, solar produced a total of 935.9GWh in September versus 913.9GWh from wind (see table below).

The solar numbers were made up of 174.9GWh for utility-scale solar, and 761.0GWh for rooftop solar, and together accounted for a little less than 6 per cent of total generation across the National Energy Market in that month.

According to McConnell, wind retook the leading mantle in October as wind speeds increased, but given the huge pipeline of solar projects it won’t be long before solar more regularly becomes the largest source of renewable power in the country.

September saw some other significant milestones that reflect the growing influence of solar power.

As we wrote at the time, solar is overtaking brown coal in capacity output in day-time hours, and keeping prices down (as Marija Petkovic from Synapse Energy confirmed this week, and it has also become the largest single energy source in the middle of the day in South Australia.

Giles Parkinson is founder and editor-in-chief of Renew Economy, and founder and editor of its EV-focused sister site The Driven. He is the co-host of the weekly Energy Insiders Podcast. Giles has been a journalist for more than 40 years and is a former deputy editor of the Australian Financial Review. You can find him on LinkedIn and on Twitter.

Giles Parkinson

Giles Parkinson is founder and editor-in-chief of Renew Economy, and founder and editor of its EV-focused sister site The Driven. He is the co-host of the weekly Energy Insiders Podcast. Giles has been a journalist for more than 40 years and is a former deputy editor of the Australian Financial Review. You can find him on LinkedIn and on Twitter.

Share
Published by

Recent Posts

Australia’s biggest publicly owned wind farm gets federal green tick to go ahead in Queensland

Australia's biggest publicly owned wind farm has been cleared for construction in Queensland coal country…

20 February 2026

Energy Insiders Podcast: How industry, AI and data centres are reshaping demand

GridBeyond CEO Michael Phelan on how industrial loads and data centres are being orchestrated by…

20 February 2026

Australian home battery upstart banks “strategic investment” towards manufacturing plans

Perth-based energy storage and off-grid energy system specialist secures a new private equity investor to…

20 February 2026

Can all solar homes become smart energy hubs? On paper – absolutely! IRL, a few hurdles remain

A South Australian trial to turn homes into grid-responsive energy hubs is now 100 households…

20 February 2026

Plan for Australia’s biggest solar-battery hybrid, with eight hours storage, get federal green tick

Plans for one of Australia's biggest solar-battery hybrid projects have been waved through the federal…

20 February 2026

AI + energy: Monster child of Origin and Facebook – or a smart, decentralised grid?

Will AI’s growing role in the grid democratise clean energy, or simply shift power from…

20 February 2026