Japan / Site
Colt 京阪奈データセンター · Osaka Keihanna Data Centre
Colt-operated hyperscale colocation site in Keihanna Science City, Seika, Kyoto Prefecture, serving the Osaka/Kansai market. Opened in March 2023 with phased delivery. Ultimate design claims of 45 and 45.9 MW differ from an undated operator completion post reporting 40.5 MW delivered; current commissioned IT capacity remains unresolved. The 2024 report also schedules expansion through Q3 2030, which requires reconciliation with the completion post.
Statements retain their dates, definitions and development scope. Do not add these rows together.
| Claim / measurement | Scope and status | As of | Evidence and accounting |
|---|---|---|---|
| 45 MW IT load | Ultimate consolidated site capacity Planned · cumulative | 2026-10-09 | Conflicting claim ↗ Excluded from capacity totals. As-of is retrieval date for undated operator page. Page combines second-phase completion with future full-completion language; not evidence that 45 MW is commissioned. |
| 45.9 MW Unspecified power | Designed capacity of consolidated site Planned · cumulative | 2023-03-13 | Conflicting claim ↗ Excluded from capacity totals. Announcement date. Release body calls this designed capacity; opening does not establish delivery of the full figure. |
| 8.1 MW Unspecified power | Phase one Operational · unclear | 2023-12-31 | Reported claim ↗ Excluded from capacity totals. As-of represents end of the report's named 2023 year, not an exact commissioning date. Search-indexed report records phase-one completion; direct PDF access failed. |
| 40.5 MW Unspecified power | Total delivered across four phases Operational · cumulative | 2026-10-09 | Conflicting claim ↗ Excluded from capacity totals. As-of is retrieval date because publication date is unavailable. Operator reports delivered capacity and final handover, but does not specify IT versus facility power or customer energisation. |
| 45.9 MW IT load | Ultimate site capacity, phase seven schedule Planned · cumulative | 2030-09-30 | Conflicting claim ↗ Excluded from capacity totals. As-of normalizes the displayed Q3 2030 target to quarter end; it is a planned target, not an actual delivery date. Search-indexed report excerpt only. |
Operator announced commencement and expected service in early 2023; other sources describe September 2021 groundbreaking.
Supporting source ↗Opening release; subsequent operator blog identifies March 2023 as phase-one launch, so full design power must not be treated as delivered.
Supporting source ↗2024 report excerpt labels phase one 8.1 MW IT in October 2023, conflicting with March launch language.
Supporting source ↗2024 report excerpt schedules 45.9 MW IT; relationship to the later undated final-handover claim is unresolved.
Supporting source ↗Operator terminology also varies to gross technical site area and space; separate floor area and parcel area are not resolved.
Source ↗Operator design datasheet; no independent structural certification checked.
Source ↗Voltage is not grid capacity. Datasheet also specifies 48-hour fuel storage at full load.
Source ↗Design specification, not measured rack density or installed hall capacity.
Source ↗Operator design datasheet.
Source ↗Design datasheet value; not measured operating PUE. 2024 search excerpt separately gives annualised target ≤1.48.
Source ↗Operator design claim; independently issued Uptime Tier certification not established.
Source ↗Operator claim; specific active carriers and paths not disclosed here.
Source ↗Provider explicitly labels this planned; do not record as live connectivity.
Source ↗2024 operator report search excerpt only; certificates, scopes and current validity not inspected.
Source ↗Source attribution does not imply independent verification or permission to reuse images.
Published Date unavailable · Retrieved 2026-10-09
Operator identifies Keihanna Science City, hyperscale customer services, carrier neutrality and second-phase completion, while describing 45 MW as capacity upon completion.
Published Date unavailable · Retrieved 2026-10-09
Japanese operator facility page establishes the local-language name and Japan facility identity.
Published 2023-03-13 · Retrieved 2026-10-09
Opening announcement identifies Japan and Keihanna Science City near Osaka; body describes 45.9 MW designed capacity and 75% committed capacity, rather than commissioned power.
Published 2021-08-31 · Retrieved 2026-10-09
Construction announcement describes 45 MW, 42,000 square metres, Kansai location and expected early-2023 service; links project to Fidelity/Mitsui venture.
Published 2023-05-23 · Retrieved 2026-10-09
Explicitly reports phase-one launch in March 2023 and phase-two construction underway.
Published 2026-09-09 · Retrieved 2026-10-09
Government-hosted employer vacancy names COLT京阪奈メックスセンタ at 京都府相楽郡精華町光台1-6-1 and describes resident data-centre equipment maintenance. Publication date uses displayed acceptance date.
Published Date unavailable · Retrieved 2026-10-09
Municipality lists colt京阪奈データセンター as a participating group, with activity on Hikaridai district roads.
Published Date unavailable · Retrieved 2026-10-09
Opened four-page operator PDF supplies building, electrical, cooling, density, resilience and connectivity design specifications; date not established.
Published Date unavailable · Retrieved 2026-10-09
Accessible operator post reports final handover with Takenaka and 40.5 MW delivered over four phases. Only relative age displayed; exact publication date and power basis unresolved.
Published Date unavailable · Retrieved 2026-10-09
Search-indexed operator report records site launch and phase-one completion at 8.1 MW during 2023. Direct opening failed because the PDF exceeded tool size limits.
Published Date unavailable · Retrieved 2026-10-09
Search-indexed page 17 reports 45.9 MW ultimate IT capacity and dated phase figures from 8.1 to 45.9 MW through Q3 2030. Full PDF opening failed on size limits; schedule and sustainability details remain excerpt-level evidence.
Published 2021-07-14 · Retrieved 2026-10-09
Opened original release describes 50:50 asset-holding and operating SPCs, initial Kyoto and Chiba projects, and Colt development/operations services. Does not name the current Keihanna property-owning SPC.
Published 2021-07-14 · Retrieved 2026-10-09
Operator release identifies equal venture ownership and Colt as exclusive design, development, operations and customer-service provider.
Published Date unavailable · Retrieved 2026-10-09
Network provider lists Colt Keihanna under Kyoto Prefecture, explicitly marked connection planned.
Name: Osaka Keihanna Data Centre; Colt DCS launch 45MW Osaka Keihanna Data Centre
Aliases: Osaka Keihanna Data Centre; Colt 京阪奈データセンター
Kind: Osaka Keihanna Data Centre; One million safe working hours achieved at Osaka Keihanna data centre
Country: Colt DCS launch 45MW Osaka Keihanna Data Centre; Colt DCS to Build New 45MW Osaka Keihanna Data Centre
Region: Hello Work vacancy 27010-41644261: building equipment management in Seika; JR West Optical Network: optical fibre core service
City: Hello Work vacancy 27010-41644261: building equipment management in Seika; Seika Town Clean Partner recruitment
Metro: Colt DCS launch 45MW Osaka Keihanna Data Centre; Colt DCS to Build New 45MW Osaka Keihanna Data Centre
Address: Hello Work vacancy 27010-41644261: building equipment management in Seika
Operator: Osaka Keihanna Data Centre; Colt DCS launch 45MW Osaka Keihanna Data Centre; Fidelity and Mitsui Form Joint Venture to Accelerate Hyperscale Strategy in Japan
Business Model: Osaka Keihanna Data Centre; Colt Osaka Keihanna Datasheet
Scale: Osaka Keihanna Data Centre; Colt DCS to Build New 45MW Osaka Keihanna Data Centre
Statuses: Colt DCS launch 45MW Osaka Keihanna Data Centre; One million safe working hours achieved at Osaka Keihanna data centre; 2024 Sustainability Highlights Report
Location: Hello Work vacancy 27010-41644261: building equipment management in Seika
Summary: Osaka Keihanna Data Centre; Colt DCS launch 45MW Osaka Keihanna Data Centre; One million safe working hours achieved at Osaka Keihanna data centre; Hello Work vacancy 27010-41644261: building equipment management in Seika; Keihanna data centre in Osaka completed with Takenaka Corporation; 2024 Sustainability Highlights Report
Stable identifier: e5d886b3-dd81-48b7-b7a0-34d3da6723d9