1,200MWh solar-plus-storage project in New South Wales, Australia, seeks approval

August 12, 2024
LinkedIn
Twitter
Reddit
Facebook
Email
Acen Australia owns a number of solar PV projects in NSW, such as the 936MWdc New England solar project (above). Image: ACEN Australia.

Renewable energy developer Acen Australia has submitted assessment documents for its 600MW Birriwa solar-plus-storage in New South Wales (NSW), Australia, which will incorporate a co-located 600MW/1,200MWh battery energy storage system (BESS).

The project developer is seeking approval via the Federal government’s Environment Protection and Biodiversity Conservation Act (EPBC).

The project is set to be developed on an area of approximately 1,200 hectares consisting of mostly cleared grazing land, about 20km southeast of Dunedoo, in the NSW Central-West Orana region, the location of one of the Renewable Energy Zones (REZ) being developed in the state. The REZ recently transitioned into the delivery phase, as reported by our sister site PV Tech.

Acen Australia said the BESS will enable excess electricity generated by the PV facilities to be captured and released during periods of high demand. The system will also provide grid stability services and backup capacity to ensure the security of supply.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

According to documents observed on the EPBC website, the project will look to install approximately one million solar PV modules and associated mounting infrastructure. The site will also include an on-site substation with a connection voltage of up to 500kV.

Construction of the project, which will have an average workforce of 360 throughout the development phase, will last 28 months, with the construction of the BESS expected to take around 16 months. Throughout operations, a workforce of up to 20 people will be required.

It is worth noting that the Birriwa solar-plus-storage project will be located next to two other solar projects developed by Acen Australia, as seen in the image above. These are the 400MW Stubbo solar PV project, at which construction began in November 2022, and the 320MW Narragamba solar project. These projects will connect to new transmission infrastructure developed by the Energy Corporation of NSW (EnergyCo) as part of the Central-West Orana REZ.

Once the Birriwa solar project receives approval, it will be able to transition into the construction phase. It will connect to the Merotherie Energy Hub and the transmission line proposed by EnergyCo NSW.

This article first appeared on our sister site PV Tech.

15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.

Read Next

Premium
May 7, 2026
The business model for battery energy storage systems (BESS) in the US is changing rapidly, according to industry experts who gathered recently to discuss revenue strategies and market conditions.
May 7, 2026
Australia has installed 380,712 home battery storage systems, representing 10.7GWh of storage capacity, since the introduction of the Cheaper Home Batteries Program last year, Chris Bowen, Australia’s minister for climate change and energy, has disclosed.
May 6, 2026
Queensland has become the first state in Australia’s National Electricity Market (NEM) to discharge over 100GWh from utility-scale battery storage systems in a single month.
Premium
May 6, 2026
We catch up with James Mills, managing director of UK BESS investor Adaptogen Capital, about UK market dynamics, its expansion into Europe, and BESS capex in 2026 and beyond.
May 6, 2026
US renewable energy developer, Longroad Energy’s Sun Pond solar-plus-storage project in Maricopa County, Arizona, US has reached commercial operation.