Campus capacity
800 MWThree halls; up to 600 MW IT disclosed
Independent project intelligence · Updated 1 Oct 2026
IREN Bundey
Data Centre Campus
A public-source view of the proposed AI infrastructure campus and the energy system that must make it possible.
800MWPlanned campus load
2028Target first energisation
610haFederal referral project area
6–8yrProgressive construction
PROJECT STATUSFederal EPBC referral lodgedState development-approval status not yet verified
Explore the snapshot ↓01 / Project snapshot
Compute meets
clean energy.
IREN has selected Bundey for its first announced Australian data centre campus—one of the largest proposed in the Asia-Pacific region.
A federal environmental referral now provides a preliminary concept: three data halls, a 610.4-hectare project area, dedicated bulk and primary substations, and a progressive six-to-eight-year build. The connection is secured; the final design, state approval pathway, customer mix and energy procurement structure remain unresolved publicly.
Read the federal referral ↗Confirmed parameters
Confirmed Reported / pendingProject area
610.4 ha565.2 ha campus + 45.3 ha corridor
Grid interface
330 / 132 / 33 kVBulk and primary substations disclosed
Construction
6–8 yearsProgressive program in EPBC referral
Employment
500+ build / 200+ ongoingIREN estimate
Cooling water
3 ML / six monthsDuring progressive initial fill
02 / Two linked systems
One project.
Two delivery tests.
The former “Data Centre / Power Systems” split is reframed as Compute Campus and Energy & Utilities: clearer language for both technical and public audiences.
A
COMPUTE CAMPUS
The digital infrastructure
Hyperscale halls, AI compute, cooling, fibre, security and campus delivery.
- Scale: 800 MW planned campus capacity
- Market: regional and global AI workloads
- Cooling: sealed closed-loop design reported
- Open: phases, PUE, vendors, customer contracts
B
ENERGY & UTILITIES
The enabling infrastructure
Grid connection, firmed renewable supply, water, backup generation and network impact.
- Connection: Bundey 275/330 kV substation
- Capacity: four 330 kV feeder exits reported
- Policy: new renewables + firming under scrutiny
- Open: who funds, owns, builds and operates supply
Seasonal operating contextEudunda climate averages · nearest long-record BOM station
BOM station 024511 ↗Indicative geography—not a navigation or engineering map. Climate figures are long-term regional averages, not a site forecast.
03 / Why Bundey
Grid-connected.
Logistically remote.
Bundey’s strategic advantage is its proximity to major transmission infrastructure. The trade-off is a regional delivery environment well beyond Adelaide’s labour, freight and specialist-services base.
01Approximately 125 km north-east of Adelaide and its metropolitan workforce base
02Robertstown is the nearest township, approximately 15 km south-west, with limited local services
03Port Adelaide is the principal import gateway, requiring freight staging and heavy-haul planning
04Direct proximity to the Project EnergyConnect transmission corridor is the decisive site advantage
04 / Energy pathway
Connection secured.
Supply model unresolved.
Important distinction: an 800 MW transmission connection is not, by itself, proof of 800 MW of new renewable generation or firming.
01Renewable generationExisting + proposed projects
→02Firming & storageBESS / dispatchable capacity
→03Bundey substation275 / 330 kV interface
→04Compute campusUp to 800 MW load
Nearby / enabling projectPublic statusRelationship to IREN
Project EnergyConnect + Bundey substationBuilt / commissioned progressivelyDirect grid interface; connection agreement confirmedSolar River — 230 MW solar + up to 2,048 MWh BESSApproved / progressingPotential regional supply; no disclosed IREN contractBundey BESS & SolarProposed staged developmentNearby project; no disclosed IREN relationship05 / Environment & community
Track the questions,
not just the claims.
Closed loop, now quantified
IREN states that progressive initial fill will require about 3 ML every six months, followed by annual maintenance top-ups below 1% of system capacity. Heat-rejection design and complete site water demand remain to be verified.
IREN community information ↗Net renewable is a system question
Track the additional generation, firming, certificates, network services and demand flexibility required to offset the new load without transferring cost or reliability risk.
AEMC policy advice ↗Federal referral now public
EPBC referral 2026/10605 covers 610.4 hectares and identifies vegetation, habitat, water, noise, backup generation and transmission works for assessment. The state approval position remains separately tracked.
Federal referral ↗06 / Rolling timeline
IREN lists on Nasdaq as Iris Energy
Company milestoneProject EnergyConnect and the new Bundey 275/330 kV substation advance
Enabling infrastructureIREN announces signed transmission connection agreement
ConfirmedFederal EPBC referral process commences
Referral 2026/10605IREN holds regional community drop-in sessions
Community engagementTarget commencement of campus energisation
Forward target07 / Who is IREN
From Bitcoin
to AI infrastructure.
Founded in Sydney in 2018 by brothers Daniel and Will Roberts, the company began as Iris Energy, building renewable-powered Bitcoin mining operations. It listed on Nasdaq in 2021 and rebranded as IREN in 2024 as it expanded into AI cloud and data centres.
NASDAQ IRENLEADERSHIP Daniel Roberts & Will Roberts, co-CEOsOWNERSHIP Publicly traded; founders retain significant influenceBUNDEY TEAM No dedicated IREN project team publicly named
08 / Latest project coverage
Signal, compacted.
Short summaries link to the original record. Inclusion does not imply endorsement.
APPROVALS
Federal environmental referral lodged
The EPBC referral discloses the preliminary campus footprint, electrical architecture and a six-to-eight-year construction program.
Read source ↗COMMUNITY
Water quantities and community program disclosed
IREN states 3 ML per six months during progressive cooling-system fill and commits A$250,000 annually to community grants.
Read source ↗COMPANY
IREN reports Bundey development progressing
FY26 results place Bundey within IREN’s global 5+ GW pipeline; no Bundey customer, funding structure or delivery model was disclosed.
Read source ↗09 / Editorial monitoring
A controlled update workflow.
This first release defines the monitoring model. Live scheduled scanning needs source connectors and will be activated separately.
Open restricted briefing ↗Source monitorWORKFLOW PREVIEW
Project announcementsManual approval
REVIEWEnergy & gridAuto-publish confirmed facts
AUTOEnvironment & communityManual approval
REVIEWMarket & companyAuto-publish links only
AUTOPlanned: preset weekly scan · manual trigger · retain / reject queue · change log · source confidence.