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The Tarong Battery Energy Storage System (BESS) in Queensland, Australia, has achieved a milestone with the full installation of all 164 Tesla Megapack 2XL units. Located at Stanwell’s Tarong Power Station in the South Burnett region, the project is now moving closer to commissioning, targeted for mid-2025.
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AUD 514 million (approx. USD 330 million) facility recently completed the energization of its two 275 kV power transformers, marking a crucial step in its development. Once operational, the 300 MW/600 MWh battery system will be capable of powering around 101,000 homes for two hours.
Strengthening Queensland’s Renewable Energy Future
The Tarong BESS is expected to play a key role in stabilizing Queensland’s electricity grid and helping reduce power costs. The project forms part of Stanwell Corporation’s broader clean energy transition strategy, which aims to deliver 5 GW of energy storage by 2035.
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Stanwell, a Queensland Government-owned energy company, has signed a 12-year offtake agreement with Tesla for storage services from the site. The Tarong BESS also supports the transformation of the existing coal-fired Tarong Power Station into a modern clean energy hub.
Construction of the Tarong BESS began in August 2023 and is being delivered in two phases. The project has created up to 80 full-time construction jobs and will generate six permanent roles once operational.
Tesla’s Expanding Footprint in Australian Energy Storage
The Tarong BESS is one of several Tesla Megapack-powered projects underway across Australia. In Queensland, Tesla Megapacks are also being installed at the 250 MW/500 MWh Swanbank Battery and a 100 MW/200 MWh energy storage facility near the Kogan Creek coal plant. Additionally, Western Australia is set to host a USD 220 million AUD (USD 145 million) Megapack-based energy storage project.
Globally, Tesla continues to scale up its battery deployments. In Q2 2025, the company delivered 9.6 GWh of battery energy storage, taking its total installations for the first half of the year to approximately 20 GWh.
