CapexCue · Public evidence · Printed 11 Nov 2026
Muchea Battery. Australia · Energy
In-depth research Release 1
Summary Facts and evidence Organizations and roles Dossier updates
Project scope
Plan: A planned 164 MW / 905 MWh battery comprising 252 Tesla Megapack 2XL units, connecting to the existing Muchea substation.
Reported status and procurement
Reported development
Plan: Once operational, the battery is planned to provide grid-stability and reliability services during Western Australia’s evening peaks.
Procurement availability
Unknown / not established
A source report alone does not establish current progress or an open buying window.
Project summary Neoen’s announcement dated 1 October 2025 describes Muchea Battery as a planned 164 MW / 905 MWh installation of 252 Tesla Megapack 2XL units in Muchea, with a planned connection to the existing Muchea substation. Neoen reported issuing notices to proceed to Tesla and UGL, signalling the start of construction. The announcement says the project is backed by the Australian Government’s Capacity Investment Scheme and is planned to provide grid-stability and reliability services during evening peaks once operational.
Evidence limits and unknowns The 1 October 2025 announcement reports the start of construction but does not establish current construction status, current procurement availability, an open supplier package, or a project budget.
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Country AustraliaBased on reviewed release evidence
Region Oceania
Category EnergyDerived from released evidence
Physical assets Battery Storage Based on this release's supporting evidence. Unresolved fields remain unclassified; these labels do not establish current progress or a buying window.
Released facts and supporting evidence Each fact retains its source, uncertainty and time context. If a publisher page moves or is unavailable, use the recorded quotation and observation date below.
The announcement is dated Sydney & Paris, 1 October 2025.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · The announcement is dated Sydney & Paris, 1 …
Evidence location /html/body/main/div[2]/div[1]/text-position:11
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference 7e75cc6d-34c0-44d9-936f-17c1e6ddcba6
Evidence reference e659c5ad-4d8d-42fb-8b91-ccc327a37365
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Muchea Battery.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · Muchea Battery.
Evidence location /html/body/main/div[2]/div[2]/text-position:13
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference e796435d-fe31-4b05-b64c-e3abc6949497
Evidence reference 9b733b7c-eee8-47bd-95ff-b157101a2d61
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ A planned 164 MW / 905 MWh battery comprising 252 Tesla Megapack 2XL units, connecting to the existing Muchea substation.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · A planned 164 MW / 905 MWh battery …
Evidence location /html/body/main/div[2]/article/p[1]
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference a9fd9842-01ca-4fc0-a022-de6ce16440f9
Evidence reference 7c870692-d155-4ff6-9ffd-fbccc5ee6d9f
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Battery energy storage.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · Battery energy storage.
Evidence location /html/body/main/div[2]/article/ul/li[2]
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference b2a56ead-0506-42fd-aa3b-05fc0d8de786
Evidence reference cfb58d25-e942-426c-b1f7-9ef22b9f542b
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Neoen reported that it had provided notices to proceed to Tesla and UGL, signalling the start of construction.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · Neoen reported that it had provided notices to …
Evidence location /html/body/main/div[2]/article/ul/li[1]
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference 6bccfb6b-745c-4e94-851f-8e8c92dfbe92
Evidence reference a0ba5455-5be1-4359-b729-34fa040912af
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Once operational, the battery is planned to provide grid-stability and reliability services during Western Australia’s evening peaks.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · Once operational, the battery is planned to provide …
Evidence location /html/body/main/div[2]/article/p[2]
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference dc226533-dd0d-489e-89b4-d2b03a3175d8
Evidence reference c6cff696-374b-4519-ad78-1ef94401fa0d
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Muchea, Western Australia, within the Shire of Chittering and on Whadjuk Country; planned connection to Western Power’s existing Muchea substation in the South-West Interconnected System (SWIS).
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · Muchea, Western Australia, within the Shire of Chittering …
Evidence location /html/body/main/div[2]/div[2]/text-position:13
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference 26c85519-8da6-4597-9e83-cf258cdce9c3
Evidence reference 9b733b7c-eee8-47bd-95ff-b157101a2d61
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Neoen.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · Neoen.
Evidence location /html/body/main/div[2]/article/p[1]
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference 51729929-f2bb-45cc-9d99-6fec394c4a01
Evidence reference 7c870692-d155-4ff6-9ffd-fbccc5ee6d9f
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ UGL is identified as the construction contractor.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · UGL is identified as the construction contractor.
Evidence location /html/body/main/div[2]/article/ul/li[1]
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference dd1a8591-c5b8-4651-b80b-efe5c633ecb6
Evidence reference a0ba5455-5be1-4359-b729-34fa040912af
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Backed by the Australian Government’s Capacity Investment Scheme; the article also says Muchea holds a Capacity Investment Scheme Agreement.
Attributed to australia.neoen.com.
Source: australia.neoen.com · publication date not recorded · observed 2026-10-17
Sources and evidence · australia.neoen.com Source published: Not recorded Observed: 2026-10-17
australia.neoen.com
Technical record · Backed by the Australian Government’s Capacity Investment Scheme; …
Evidence location /html/body/main/div[2]/article/ul/li[2]
Claim confidence 0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference ce7bfb2d-cee8-4bfa-881a-239c43a12159
Evidence reference cfb58d25-e942-426c-b1f7-9ef22b9f542b
Source revision 7a046d5c-e713-4879-a8b1-50862acc4743
Content fingerprint 65260241bc636c1ef384e4743a3f57f6ad72e7a2d2bd9f2264cb5b08e6205aa0
Source address https://australia.neoen.com/en/news/2025/neoen-launches-first-6-hour-battery-in-muchea-delivers-collie-battery-2-both-in-western-australia/ Source report history Prior and superseded states remain labelled. Dates below identify source publication when known, otherwise source observation. They are not assumed event dates; each fact retains its own time qualifications.
No material timeline events have been released.
Organizations and roles
Neoen. Source-reported developer · Evidence
UGL is identified as the construction contractor. Contractor · Evidence
A documented role does not confirm who buys a particular equipment package.
Research coverage
Includes dedicated project research reviewed and incorporated into this dossier.
Latest research update published: 17 Oct 2026
Subsequent research updates: 0
Evidence and updates
Overview depth and evidence gaps This overview presents supported project scope and source-reported information. Further research can add detail on:
Supplier-specific buying responsibility and equipment timing require separate assessment. Oldest supporting observation: 2026-10-17 · newest supporting observation: 2026-10-17. Review time does not freshen source evidence.
Source, observation and release dates · structured source date unavailable
Source report dates Structured source date unavailable · 1 source revision without a structured report date
Source captured 17 Oct 2026
Dossier released 17 Oct 2026 Source event/report wording remains with each fact. Capture and release dates do not establish a new project event.
How to read evidence limits “Not observed” means no supporting evidence in this release, not that the event did not happen.
Dossier updates
These are CapexCue's recorded public dossier releases, not project event dates. Up to 20 releases are listed.
First recorded dossier release. This does not establish that the project is new or unchanged.
Release 1 · dossier released 17 Oct 2026, 12:52 UTC
Release and method
Oldest supporting observation 2026-10-17
Dossier released 17 Oct 2026, 12:52 UTC
Method Versioned source, claim and public-policy decisions Publication policy accepted-destination-v1 · dossier-v1
Stable project reference: 2a905c87-771e-4bb7-98ba-3c25c47f0b0d
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