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CyrusOne CHI1–CHI3 Aurora Data Center Campus

Aurora, Illinois, United StatesPartially operational
Evidence
Planned critical IT
114 MW
Updated
Oct 28, 2026

CyrusOne CHI1–CHI3 Aurora Data Center Campus, also known as CyrusOne Aurora Campus, is a partially operational data center campus in Aurora, IL, US associated with CyrusOne. 16-acre campus; three facilities; 450,000 square feet of technical space; 114 MW total IT capacity. Chicago-area campus with diverse enterprise and financial-services connectivity plus advanced cooling systems. 109 MW is the current operator-published campus IT design across CHI1–CHI3; the prior 114 MW value is superseded.

Capacity

Reported capacity

Design

114 MW

Source

Reported capacity

Planned / design or future potential

109 MW

Source

Current campus IT design

Planned / design or future potential

109 MW

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

Operating facility and documented expansionOperational

CyrusOne current marketing reports 114 MW for CHI1–CHI3, while the independent Aurora register reports 109 MW. The available public sources do not establish a single project-scoped capacity figure.

Operating facility and documented expansionPartially operational

109 MW is the current operator-published campus IT design across CHI1–CHI3; the prior 114 MW value is superseded.

Milestones (3)
Aurora reviewed a multi-building campus expansion

Jan 2024 · Recorded actual event

Completed · Permit filed

Source not linked
CHI3 built out during 2024

2024 · Recorded actual event

Completed · Construction completed

Source not linked
Current profile reports 109 MW campus design

Aug 30, 2026 · Recorded actual event

Completed · Capacity revised

Source not linked

Participants

CyrusOne

Developer

Sources by role
Developer (1)

Site & development

Location context

Actual

CyrusOne CHI1–CHI3 | Aurora | IL | US

Source

Location context

Actual

CyrusOne CHI1–CHI3 | Aurora | IL | US

Source

Technical area

Actual

450,000 square feet

Source

Campus area

Actual

16 acres

Source

Location context

Actual

CyrusOne Aurora Campus | Aurora | IL | US

Source

Technical area

Design

450,000 square feet

Source

Additional project facts

Lifecycle status

Actual

Operational

Source

Capacity basis

Actual

CyrusOne publishes 114 MW of critical IT capacity for this record boundary.

Source

Lifecycle status

Actual

Operating

Source

Built out in 2024

Actual

CHI3

Source

Lifecycle status

Actual

Partially operational

Source

Capacity basis

Actual

109 MW is the current operator published campus IT design across CHI1–CHI3; the prior 114 MW value is superseded.

Source

Facility count

Proposal

3 facilities

Source

Campus expansion

Actual

City reviewed multi building expansion

Source

Infrastructure & permits

Technical details (4)
Electric grid

Energized

Multiple cooling systems, high-density support, secure loading facilities, biometric access and expanded financial-market connectivity.

Cooling system

Operational

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

Electric grid

Energized

Chicago-area campus with diverse enterprise and financial-services connectivity plus advanced cooling systems.

Cooling system

Operational

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

Public-source research. Plans may change. See Evidence for sources and qualifications.

Related projects (2)
CyrusOne - Talkington Township Campus

Proposed · Talkington Township, Illinois, United States

Shared participant: CyrusOne · Same market: Illinois, United States

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CyrusOne CHI5 Lombard Data Center

Operating · Lombard, Illinois, United States

Shared participant: CyrusOne · Same market: Illinois, United States

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