Kemerton Battery Energy Storage System
The Kemerton BESS is a proposed large-scale standalone battery energy storage project located near Kemerton, Western Australia. The project has achieved Ready-to-Build status with secured land access, environmental clearances, development approval and a Western Power Access Agreement.
The project is located nearby the Kemerton Strategic Industrial Area (KSIA), a State Government-led industrial precinct developed to support energy, infrastructure and advanced industrial projects.
With a planned capacity of up to 330 MW and a six-plus hour duration, the Kemerton BESS is positioned as one of the largest near development battery projects in Western Australia.
Integration with the South West Interconnected System (SWIS), Western Australia’s primary electricity network.
Key Milestones Achieved
- Executed Western Power Access Offer
- Executed Western Power IWC, including procurement of long-lead items
- Lease and Easement access secured
- Development Approval secured
- Environmental and planning clearances completed
- Project design and procurement well advanced
The execution of the Western Power Access Offer represents a significant milestone on the journey to energisation and underpins the project’s pathway to construction and grid connection in late-2028.
Project Timeline
Development → Construction → Operation
2022 – 2025
Project Development Phase
- Site selection and feasibility
- Development Approval secured
- Environmental and planning approvals
- Grid connection studies and applications
April 2026
Access Offer Executed
- Western Power Access Offer finalised
- ETAC and Long Lead Items secured
- ECI engagement
Q2 2026
Financial Close
- Final investment decision
- Procurement finalisation
- EPC finalisation
- Long lead item procurement
Q3 2026
Early Works Commence
- Site mobilisation
- Civil and enabling works
Q3 2026 to Q1 2028
Construction Phase
- BESS installation
- Electrical and HV infrastructure works
- Balance of Plant works
- Integration and commissioning
April 2028
Practical Completion
Summer 2028
Operational Readiness
- Fully energised and supporting the grid
Looking Ahead
With all major approvals in place and grid access secured, KBESS is now moving toward financial close and construction. The project is on track to be operational ahead of the 2028 summer period, where it will play a critical role in supporting Western Australia’s energy system.
Glasterra remains focused on delivering KBESS safely, efficiently, and with strong engagement across stakeholders, ensuring the project provides long-term value to the state.