Project Overview
AMPYR is developing the Wellington Battery Energy Storage System (BESS) in Central West New South Wales to support Australia’s transition to a cleaner, more reliable energy future.
The project is being delivered in two stages:
- Wellington 1: 300 MW / 600 MWh
- Wellington 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 Wellington Battery is being delivered in two stages.
- Planning approvals have been secured.
- Wellington 1 is beginning construction in August 2025, with initial energisation occurring in mid 2026, and full operations by 2027.
- Wellington 2 is expected to begin construction in Q2 2026, with energisation and full operations in 2027.
How It Works
The Wellington Battery 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).
