LATEST DATA
GLOBAL WIND + SOLAR SHARE 18.4% +2.1 PP YOYGLOBAL CLEAN ELECTRICITY 41.2% POWER DEMAND +3.0% YOYCLEAN ENERGY EQUITIES ICLN $17.36 +0.35%TAN $48.15 +1.24%FAN $23.68 +0.27% POWER · EMBER EQUITIES · DELAYED
← BACK TO HOMENEWS / ENERGY STORAGE
Collie-Battery_Actus_1920x738.jpg
NEWSENERGY STORAGE 3 MIN READ

Neoen launches first 6-hour energy storage battery in Muchea & delivers Collie Battery 2, both in Western Australia

Neoen, one of the world’s leading producers of exclusively renewable energy, has provided notices to proceed to Tesla and construction contractor UGL (a member of the CIMIC Group), signalling the start of construction of Muchea Battery in Western Australia (WA). Sized at 164 MW / 905 MWh, Muchea Battery will consist of 252 Tesla Megapack 2XL units and will connect into Western’s Power’s existing Muchea substation in the South-West Interconnected System (SWIS).

Muchea is Neoen’s first 6-hour long-duration battery and is backed by the Australian Government’s Capacity Investment Scheme. Once operational, Muchea will deliver critical grid-stability and reliability services during WA’s evening peaks.

Located on the country of the Whadjuk people and within the Shire of Chittering, Muchea Battery is expected to deliver 70 new jobs during construction as well as economic opportunities for local businesses. It will contribute over AUD2 million in benefit-sharing for First Nations peoples and the local community across its 20+ year operational lifespan.

Neoen has also started operating Collie Battery Stage 2 (341 MW / 1,363 MWh) in WA, less than 15 months since the start of construction, solidifying the company’s track record of rapidly delivering high-quality assets. From 1st October, Collie Battery 2 starts delivering its 300 MW / 4-hour grid capacity service contract to the Australian Energy Market Operator (AEMO). This 2-year contract helps address risks associated with the retirement of coal power plants, high penetration of rooftop solar and increasing energy demand in the State

Combined with Stage 1 (219 MW / 877 MWh), Collie is Australia’s largest battery in operation and the first to exceed 2 GWh of storage capacity. At 560 MW / 2,240 MWh, Collie Battery can charge and discharge the equivalent of 20% of the average demand in the SWIS.

These milestones bring Neoen’s total storage capacity in Western Australia to 724 MW / 3,145 MWh, representing over AUD1 billion in investment in the State since 2022. This cements the company’s position as Australia’s leading developer, owner and operator of big batteries, with a total portfolio of 1.7 GW / 5.1 GWh of storage capacity currently in operation or under construction.

Discussing this developments with The Voice of Renewables, Jean-Christophe Cheylus, Neoen Australia’s CEO, said: “The pace at which we have grown and delivered storage in Western Australia is a reflection of the Neoen team’s disciplined focus, the strength of our relationships with Tesla, UGL, Western Power and AEMO, and the trust that we have nurtured with our host landowners and the local community. I applaud the dedication of everyone who has brought Collie Battery online so quickly and look forward to Muchea Battery joining it to support the WA grid.”

Sam Barbaro, Western Power’s CEO, told us: “The Western Power network is playing a key role in enabling industry and the community to reach their decarbonisation goals and expediting the transition to a sustainable energy system. I’d like to congratulate Neoen and recognise all involved in enabling Collie Battery 2 to be delivered ahead of schedule. We look forward to continuing our collaboration with Neoen on the Muchea Battery project with the aim of providing outstanding outcomes for our community and the WA energy market.”

Jai Thomas, Energy Policy WA’s Coordinator of Energy, said: “It’s great to see the WA Government’s energy market arrangements delivering innovative projects like Neoen’s Muchea Battery. The integration of new clean energy generation and battery storage projects is a crucial part of WA’s energy transition and its journey to becoming a renewable energy powerhouse.”

Xavier Barbaro, Neoen’s Group CEO, concluded: “I congratulate our team and delivery partners on achieving these two equally impressive milestones in Western Australia. Neoen’s ability to rapidly enter a new region and deliver high-quality projects on time is the fruit of intense collaboration and commitment. We are proud that our storage assets are playing an increasingly critical role in accelerating the energy transition in Australia, and around the world.”

Derek Michalski

ABOUT THE AUTHOR

Derek Michalski

The Voice of Renewables editorial team reports on the policies, projects, technologies and people shaping the global energy transition.

VIEW AUTHOR ARCHIVE

MORE FROM ENERGY STORAGE

THE LATEST SECTOR COVERAGE

NEWS

Algebris Acquires Vector Renewables From Nadara

1 OCT 2026 · 2 MIN READ

NEWS

€1bn financing. €200m failure. Enerparc’s financing model breaks down

30 SEP 2026 · 8 MIN READ

NEWS

Greece’s Storage Gap Is Becoming a Bigger Problem Than the Battery Numbers Suggest

29 SEP 2026 · 11 MIN READ

NEWS

Lithuania’s surplus solar power is looking for a data centre

27 SEP 2026 · 3 MIN READ

DEEP DIVE

Hedged on paper: the risks solar, wind and storage deals leave behind

27 SEP 2026 · 10 MIN READ

NEWS

Europe’s Energy Treaty Shield Has Become a Seat Lottery

20 SEP 2026 · 7 MIN READ

NEWS

The Battery Bill That Arrives After the Loan Is Paid Off

18 SEP 2026 · 4 MIN READ

NEWS

Britain’s four largest battery sellers own none of the capacity they trade

12 SEP 2026 · 5 MIN READ

NEWS

Lithuania’s Renewable Energy Boom: Solar, Wind, and Battery Storage Today — and What’s Coming Next

12 SEP 2026 · 5 MIN READ

NEWS

The €200 Million Loan That Finances Only Half a Cross-Border Wind Farm

11 SEP 2026 · 2 MIN READ

NEWS

Poland’s grid queue is filling up with renewables and batteries

10 SEP 2026 · 5 MIN READ

NEWS

Greece Licensed 67 GW of Batteries. The Grid Can Take About 7.

10 SEP 2026 · 4 MIN READ

NEWS

The Battery That Grew Without Getting Stronger

10 SEP 2026 · 3 MIN READ

NEWS

Bulgaria Beat Its 2030 Storage Target Four Years Early. Then What?

9 SEP 2026 · 6 MIN READ

NEWS

The Fine Print in Portugal’s Big Storage Bet

7 SEP 2026 · 4 MIN READ