AMPYR is developing the Bulabul Battery in Wellington, Central West New South Wales, to support Australia’s transition to a cleaner, more reliable energy future.

Bulabul Battery (formerly the Wellington BESS or Wellington Battery Energy Storage System) was named by the Binjang Clan of the Wiradjuri people in August 2025. “Bulabul” means “two acting together,” symbolising the partnership between the community and the project, and the meeting of the Bell and Macquarie rivers at Wellington.

The project is being delivered in two stages:

• Bulabul 1: 300 MW / 600 MWh
• Bulabul 2: 100 MW / 400 MWh

Together, the two stages will provide a total of 400 MW of power and 1 GWh of storage capacity, enabling the system to store renewable energy and dispatch it during periods of high demand.

AMPYR’s goal is to ensure residents, the local community, Aboriginal owners and other stakeholders have a voice in the process by providing transparent communication, seeking input and actively listen to community feedback. We look forward to continuing to share information on the project as this progresses.

Project Status

• The Bulabul Battery is being delivered in two stages.
• Planning approvals have been secured.
• Bulabul 1 is beginning construction in August 2025, with initial energisation occurring in mid 2026, and full operations by 2027.
• Bulabul 2 is expected to begin construction in Q2 2026, with energisation and full operations in 2027.

How It Works

The Bulabul Battery, sometimes referred to as a Battery Energy Storage System (BESS), will both charge from and discharge back into the national electricity grid. It will operate by charging during periods of low electricity demand—typically when renewable generation is high—and discharging during peak demand periods. This helps balance supply and demand on the grid, reduces costs, improves reliability, and supports the integration of renewable energy sources.

The system will connect to the National Electricity Market (NEM) via the adjacent Wellington 330kV substation and will participate actively in daily market operations. It will also provide essential system services to the market, which are managed by the Australian Energy Market Operator (AEMO).

The Bulabul Battery is located on Wiradjuri Country five kilometres north east of Wellington in the Dubbo Regional Council local Government area (LGA).

The Bulabul Battery is adjacent to and will connect to the Transgrid Wellington substation.

The Transgrid Wellington substation is a key point on Transgrid’s 330kV transmission network, connecting renewable energy resources with electricity consumers across NSW.