Skip to content
CARTIS

CyrusOne KEP OSK1 Osaka Data Center Campus

Keihanna, Kyoto Prefecture, JapanUnder construction
Evidence
Planned critical IT
48 MW
Updated
Oct 28, 2026

CyrusOne KEP OSK1 Osaka Data Center Campus, also known as CyrusOne KEP OSK1, is a data center project in Keihanna, Kyoto Prefecture, JP associated with CyrusOne. 19,693-square-metre site; one four-story building; six 8 MW data halls; 48 MW critical IT capacity. Kansai facility with a 70 MVA utility connection, dedicated substation, closed-loop cooling and multilayer security. 48 MW is the operator-published future facility or full-build design boundary.

Capacity

Reported capacity

Design

48 MW

Source

Reported capacity

Planned / design or future potential

48 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

Development, permitting and phased deliveryUnder construction

48 MW is the operator-published future facility or full-build design boundary. It is not operating IT load.

Milestones (3)
OSK1 groundbreaking held

Sep 12, 2024 · Recorded actual event

Completed · Construction started

Source not linked
Construction work began

Aug 1, 2025 · Recorded actual event

Completed · Construction started

Source not linked
First 16 MW targeted by end of fiscal 2027

2028 · Forecast / planned record

Forecast · Forecast completion

Source not linked

Participants

CyrusOne

Developer

Sources by role
Developer (1)
Kansai Electric Power Company

Developer

Sources by role
Developer (1)

Site & development

Location context

Actual

CyrusOne KEP OSK1 | Keihanna | Kyoto Prefecture | JP

Source

Location context

Actual

CyrusOne KEP OSK1 | Keihanna | Kyoto Prefecture | JP

Source

Site area

Actual

19,693 square metres

Source

Building count

Design

1 building

Source

Additional project facts

Lifecycle status

Actual

Construction

Source

Capacity basis

Actual

CyrusOne publishes 48 MW of critical IT capacity for this record boundary.

Source

Lifecycle status

Actual

Construction

Source

Capacity basis

Actual

48 MW is the operator published future facility or full build design boundary.

Source

Data halls

Design

6 halls

Source

Incoming utility supply

Design

70 MVA

Source

Infrastructure & permits

Technical details (3)
Electric grid

Planned or represented

Kansai facility with a 70 MVA utility connection, dedicated substation, closed-loop cooling and multilayer security.

Cooling system

Planned or represented

Operator describes resilient cooling; Public sources do not establish water use or delivered capacity beyond the cited project specification.

Electric grid

Planned or represented

70 MVA gross

Incoming KEPCO supply for a separate 48 MW IT design.

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

Related projects (1)
STACK KIX01 Keihanna Data Center Campus

Under construction · Keihanna, Kyoto Prefecture, Japan

Same locality: Keihanna

Compare in a collection