Acciona Energía submits wind-plus-BESS of up to 800MWh to Australia’s EPBC Act

July 18, 2025
LinkedIn
Twitter
Reddit
Facebook
Email

Spain-based renewable energy firm Acciona Energía has submitted plans for a wind-plus-storage site featuring up to 800MWh of battery energy storage systems (BESS) to Australia’s Environment Protection and Biodiversity Conservation (EPBC) Act.

The Tall Tree Wind Farm is being proposed south of Meredith in the Golden Plains Shire region of Victoria. It is located 94km west of the state capital, Melbourne, and is within the proposed Central Highlands Renewable Energy Zone (REZ).

Spanning a 5,135-hectare site, the project would include up to 53 wind turbine generators alongside a co-located BESS of up to 800MWh. Little detail on the BESS has been revealed at the time of reporting, but it will be located in the centre of the site.

The project’s wind generator segment will have a generation capacity of 330MW and will connect to the National Electricity Market (NEM), which covers the east and south coasts of Australia and the island state of Tasmania.

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

Construction of the Project is anticipated to commence in 2027 and last 24-36 months, with a targeted operational date of 2029.  The project is expected to have an operational lifespan of 30 years and will either be decommissioned or have its operations extended.

The EPBC Act, administered by the federal government, aims to protect nationally threatened species and ecological communities. The approval must be received before a project can be developed. 

In December 2024, the EPBC Act was scrutinised by the Australian trade association, the Clean Energy Investor Group, which revealed that decision-making periods have doubled from 2021 to 2023.

‘Sunshine State’ solar-plus-storage site submitted to the EPBC Act

In other news, Swedish solar developer OX2 has submitted plans for a 150MW solar-plus-storage project in Queensland.

The Sunshine State Solar Farm and BESS project, which is also Queensland’s nickname, features a 128MW/256MWh 2-hour duration BESS.

It is being proposed near the small coastal town of Rollingstone, approximately 50km north of Townsville in North Queensland. The total project site is 185.92 hectares.

Sunshine State Solar Farm will feature around 235 solar PV modules installed in regular arrays on a single-axis tracking system. It will also feature power conversion units, underground high AC voltage reticulation cabling, and aboveground and underground DC cabling.

Construction of the solar-plus-storage site is scheduled to begin in late 2027 or 2028 and is expected to last around 18 months. Operation is slated to start in early 2030.

The second part of this article first appeared on our sister site PV Tech.

Our publisher, Solar Media, will host the Battery Asset Management Summit Australia 2025 on 26-27 August in Sydney. You can get 20% off your ticket using the code ESN20 at checkout.

24 February 2026
InterContinental London - The O2, London, UK
This isn’t just another summit – it’s our biggest and most exhilarating Summit yet! Picture this: immersive workshop spaces where ideas come to life, dedicated industry working groups igniting innovation, live podcasts sparking lively discussions, hard-hitting keynotes that will leave you inspired, and an abundance of networking opportunities that will take your connections to new heights!

Read Next

November 30, 2025
Ampyr Australia has secured a 15-year battery storage agreement with InCommodities for the 600MWh Bulabul BESS in New South Wales.
November 28, 2025
The Australian government has officially opened CIS Tender 8, targeting 16GWh of energy storage capacity across the NEM.
November 27, 2025
A joint venture (JV) between EDF and developer AME has begun construction of large-scale battery and solar photovoltaic (PV) projects in Chile, with 2GWh storage capacity.
November 27, 2025
With Document No. 136 scrapping the mandatory energy storage allocation requirement for renewable energy and the rollout of policies governing new energy storage, China’s energy storage market is going through a period of dynamic change.
November 27, 2025
The Western Australian government has launched the first stage of an Expression of Interest (EOI) process for a 50MW/500MWh vanadium flow battery energy storage system (VBESS) in Kalgoorlie.