Japan / Site
KIX01 Campus · ESR-STACK けいはんな
Three-building campus in Keihanna, Seika, Kyoto Prefecture, within Japan's Kansai region and marketed in STACK's Osaka market. First building KIX01A is under construction with 18 MW IT capacity and planned readiness in Q2 2027. ESR reports an ultimate 72 MW IT campus; STACK's Japanese materials advertise 80 MW. Future expansion remains planned, and no operational capacity was established.
Statements retain their dates, definitions and development scope. Do not add these rows together.
| Claim / measurement | Scope and status | As of | Evidence and accounting |
|---|---|---|---|
| 72 MW IT load | Ultimate multi-phase Keihanna campus Planned · cumulative | 2025-04-28 | Conflicting claim ↗ Excluded from capacity totals. As-of is announcement date. IT basis explicitly identified in footnote; includes first building, not additional to it. Conflicts with Japanese STACK 80 MW materials. |
| 18 MW IT load | KIX01A first building Under Construction · incremental | 2025-04-28 | Reported claim ↗ Excluded from capacity totals. As-of is announcement date. Building is a component of campus total; planned service Q2 2027, not established operational load. |
| 54 MW Unspecified power | KIX01 future expansion Planned · incremental | 2026-10-09 | Reported claim ↗ Excluded from capacity totals. As-of is retrieval date of undated facility page. Presented beside 18 MW KIX01A within 72 MW campus; page does not explicitly label this figure's electrical basis. |
| 80 MW IT load | Total KIX01 campus Planned · cumulative | 2026-10-09 | Conflicting claim ↗ Excluded from capacity totals. As-of is retrieval date of undated Japanese operator page, not announcement date. Explicit campus IT total; conflicts with 72 MW English operator and ESR announcement figures. No explanation of revision found. |
Date reported by Cloud Watch; ESR subsequently confirmed construction had commenced.
Supporting source ↗Joint construction and operation of KIX01A announced within a multi-phase Keihanna campus.
Supporting source ↗Expected service date, reiterated in August 2026 reporting; completion has not been established.
Supporting source ↗Operator campus figure; independently surveyed boundary not established.
Source ↗KIX01A named by operator; other buildings grouped as future expansion.
Source ↗Developer announcement describes pre-certification, not final completed-building certification.
Source ↗Design claim in undated brochure; Japanese operator page instead specifies air-cooled chillers. Final design unresolved.
Source ↗Advertised design; conflicts with English brochure's water-cooled chillers.
Source ↗Design claim; Japanese page lists dual 77 kV lines. Neither establishes connection MW or energization.
Source ↗Design claim conflicting with English brochure's 154 kV.
Source ↗Advertised design specification, not demonstrated operational resilience.
Source ↗Brochure marketing claims; installed connections and service availability not independently verified.
Source ↗Brochure design claim; rack count and actual rack power not disclosed.
Source ↗Target in brochure, not measured operational performance.
Source ↗General STACK sales address published in facility brochure; no dedicated campus contact established.
Source ↗Source attribution does not imply independent verification or permission to reuse images.
Published 2025-04-28 · Retrieved 2026-10-09
Announces joint construction and operation of KIX01A, 18 MW IT, within a 72 MW IT Keihanna campus; Q2 2027 readiness and LEED Gold pre-certification.
Published Date unavailable · Retrieved 2026-10-09
Lists a three-building 72 MW campus on 5.3 hectares, KIX01A at 18 MW and future expansion at 54 MW; offers colocation and build-to-suit.
Published Date unavailable · Retrieved 2026-10-09
Advertises 80 MW campus IT capacity, 5.3 hectares, dual 77 kV lines, N+1 electrical redundancy and air-cooled chillers.
Published Date unavailable · Retrieved 2026-10-09
Undated accessible brochure reports 72 MW, three buildings, KEPCO 154 kV, water-cooled chillers, carrier-neutral connectivity and annualized PUE target below 1.3.
Published 2025-06-17 · Retrieved 2026-10-09
Reports actual KIX01A construction start on March 1, 2025 and planned Q2 2027 service; identifies 72 MW as IT power.
Published 2026-08-28 · Retrieved 2026-10-09
On-location industry reporting identifies ESR–STACK construction in Seika, Kyoto, on former Panasonic research land west of Colt's separate facility; reiterates 18 MW first building and 72 MW eventual IT capacity.
Published Date unavailable · Retrieved 2026-10-09
Directory lists 3 Chome Hikaridai, 619-0237 Seika and campus sublistings; its Q2 2025 service target is inconsistent with later developer announcements.
Name: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan; KIX01 — STACK Infrastructure
Aliases: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan; KIX01 — STACK Infrastructure; ESRとSTACKがけいはんな地区でデータセンター共同展開。「KIX01A」は2027年第2四半期運用開始へ
Kind: KIX01 — STACK Infrastructure
Country: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan
Region: 関西の新興DC集積地、京都府精華町
City: 関西の新興DC集積地、京都府精華町; STACK Infrastructure KIX01 Campus — Data Center Map
Metro: KIX01 — STACK Infrastructure; Osaka, Japan KIX01/CAMPUS brochure
Operator: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan
Business Model: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan; KIX01 — STACK Infrastructure
Scale: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan; KIX01 — STACK Infrastructure
Statuses: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan; KIX01 — STACK Infrastructure; 関西の新興DC集積地、京都府精華町
Summary: ESR and STACK Break Ground on First Phase of 72 MW Data Centre Campus in Kansai, Japan; KIX01 — STACK Infrastructure; Keihanna / KIX01 — STACK Infrastructure Japan; 関西の新興DC集積地、京都府精華町
Location: 関西の新興DC集積地、京都府精華町
Stable identifier: 19b07d1e-084d-4a1e-a0ba-c1e07eff3f3e