Collie Battery (Neoen)

Collie Battery (Neoen) battery storage overview.

Neoen's Collie Battery is a four-hour storage installation in Western Australia's South West Interconnected System. Its two operating stages use Tesla Megapack systems to store electricity and deliver grid-reliability services. Stage 1 began operating in October 2024 and Stage 2 in July 2025; the larger consented development allows for further expansion.In OperationAustralia

At a Glance

Capacity

560 MW

Energy storage

2,240 MWh

Storage duration

4 hours

Storage type

Standalone

Owner

Neoen

Operator

Data coming soon

Country

Australia

Location

-33.310°, 116.293°

Website

Official project page

Ownership

1 record

Share	Organisation	Role	Details	Period
Unknown		Owner Operator	Neoen owns and operates the two completed stages of Collie Battery.	Current / not dated

Organisations

12 records

Organisations recorded as working on this asset or its project, and their role.

Organisation	Role	Details
	Instrument transformer manufacturerEquipment Supply	Arteche supplied the current and voltage transformer technology selected for the battery connection.
	Grid reliability service counterpartyOfftake Revenue	AEMO contracted grid-reliability services from the battery under separate agreements for Stage 1 and Stage 2.
	Portfolio financing participantFinance Insurance Legal	CEFC financing for Neoen's Australian portfolio supported development of Collie Battery Stage 2.
	Transmission network connection providerGrid Connection	Western Power provides the transmission network connection for the battery.
	Connection equipment supplierEquipment Supply	GFF Power supplied and supported high-voltage instrument transformers for the battery's transmission connection.
	Battery owner and operatorOwner Operator	Neoen owns and operates Collie Battery's two completed stages.
	Development and asset management providerDevelopment And Asset Management	Neoen Australia provides project development, construction management and asset management for Collie Battery.
	Battery technology supplierEquipment Supply	The completed installation comprises 572 Tesla Megapack 2XL units.
	Storage operations and maintenance partnerOperations Maintenance	The March 2026 project factsheet names Tesla as a storage operations and maintenance partner.
	Construction and balance-of-plant contractorEpc Balance Of Plant	UGL delivered construction, substation works, battery installation and associated balance-of-plant infrastructure.
	Storage operations and maintenance partnerOperations Maintenance	The March 2026 project factsheet names UGL as a storage operations and maintenance partner.
	Environmental and social assessment adviserConsenting Environmental	Umwelt prepared environmental, noise and community-engagement assessments supporting the development application.

Supplier registration

How suppliers get onto this project's radar: its standing register, supplier portal or contact route.

The project's published supplier-interest listing has closed. General enquiries can be directed through the project contact page.

The project-specific ICN listing for Collie Battery has closed; the project contact page remains available for general enquiries.

SourceChecked 27 Oct 2026

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