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CyrusOne PAR1 Paris Data Center Campus

Wissous, Île-de-France, FrancePartially operationalDiligence evidence / compare baseline
Capacity
27 MW
Planned critical IT
Lead participant
CyrusOne
Developer
Last updated
Aug 28, 2026
Most recent public record update

About CyrusOne PAR1 Paris Data Center Campus

CyrusOne PAR1 Paris Data Center Campus, also known as CyrusOne PAR1, is a partially operational data center campus in Wissous, IDF, FR associated with CyrusOne. Six planned data halls across three phases; 27 MW total design; 4.5 MW identified as operating on the current profile. Phased Paris-region campus with dual redundant power, closed-loop cooling and renewable-energy sourcing. 4.5 MW is the current operating-phase design. The separate 27 MW figure is the six-hall, three-phase full-build plan.

Capacity

Planned critical IT
Operating capacityNo reviewed operating IT-capacity value is included in this record.
It Load27 MWdesign · CyrusOne PAR1 Paris Data Center CampusReported CapacitySeparate source claim; not added to the headline.Review evidence
It Load4.5 MWactual · CyrusOne PAR1 Paris Data Center CampusReported CapacitySeparate source claim; not added to the headline.Review evidence
Design4.5 MWPlanned / design or future potential · CyrusOne PAR1 Paris Data Center CampusReported CapacitySeparate source claim; not added to the headline.Review evidence
It Load4.5 MWdesign · CyrusOne PAR1 Paris Data Center CampusCurrent Phase DesignSeparate source claim; not added to the headline.Review evidence
It Load27 MWforecast · CyrusOne PAR1 Paris Data Center CampusFull Build DesignSelected headline; not an additive total.Review evidence

Development

2 phases · 3 milestones
Three-phase PAR1 developmentPartially Operational

4.5 MW operating + 6.9 MW non-operational + 15.6 MW authorization-stage = 27 MW full design.

3 buildings

Operating facility and documented expansionPartially Operational

4.5 MW is the current operating-phase design. The separate 27 MW figure is the six-hall, three-phase full-build plan.

Aug 29, 2026
Phase 1 operating at 4.5 MW
Completed
Aug 29, 2026
Phase 3 remains authorization-stage
Completed
Aug 30, 2026
Current profile distinguishes 4.5 MW operating phase from 27 MW full build
Completed

Infrastructure

Electric GridEnergized

Resilient utility supply, efficient closed-loop cooling, carrier-neutral connectivity and heat-reuse readiness.

Cooling SystemOperational

CyrusOne describes closed-loop or air-cooled systems; the profile does not infer facility water use beyond the cited site specification.

Electric GridEnergized

Phased Paris-region campus with dual redundant power, closed-loop cooling and renewable-energy sourcing.

Cooling SystemOperational

Cooling and efficiency claims remain limited to source-defined designs; no delivered load or water use is inferred.

Electric GridPlanned Or Represented

4.5 MW current design

Current phase is distinct from the 27 MW full-build plan.

Project map

0 of 1 project point mapped
Infrastructure facts
5
Mapped records
0
Capacity figures
1

No map point available

Power & interconnection: 3Cooling & water: 2

Facts & sources

Claim review and source dates are shown separately. A record update date is not a claim review date.

17 facts
Location Context
CyrusOne PAR1 | Wissous | Île de-France | FR
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
63429
Lifecycle Status
Partially operational
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
63430
Reported Capacity
27 MW
design
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
63431
Capacity Basis
CyrusOne publishes 27 MW of critical IT capacity for this record boundary.
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
63432
Location Context
CyrusOne PAR1 | Wissous | Île de-France | FR
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
93180
Lifecycle Status
Partially operational
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
93181
Reported Capacity
4.5 MW
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
93182
Capacity Basis
4.5 MW is the current operating Phase 1 IT boundary. The remaining 22.5 MW belongs to non operational or authorization stage phases within the 27 MW full design.
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
93183
Technical Area
10,396 square metres
design
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
93188
Location Context
CyrusOne PAR1 | Wissous | IDF | FR
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104370
Lifecycle Status
Partially operational
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104371
Reported Capacity
4.5 MW
Planned / design or future potential
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104372
Capacity Basis
4.5 MW is the current operating phase design. The separate 27 MW figure is the six hall, three phase full build plan.
actual
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104373
Current Phase Design
4.5 MW
design
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104374
Full Build Design
27 MW
forecast
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104375
Planned Data Halls
6 data halls
Planned / design or future potential
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104376
Development Phases
3 phases
design
Claim review
Approved
Claim date
Physical subject
CyrusOne PAR1 Paris Data Center Campus · Project
Claim reference
104377