Japan / Site
TKY01 · Inzai / TKY01
Two-building campus in Inzai, Greater Tokyo, with 36 MW of advertised ultimate IT capacity. TKY01A was delivered in October 2024; TKY01B is under construction with Q4 2027 delivery expected. Completion does not independently establish commissioned customer load, and later financing disclosures conflict with the first-building delivery chronology.
Statements retain their dates, definitions and development scope. Do not add these rows together.
| Claim / measurement | Scope and status | As of | Evidence and accounting |
|---|---|---|---|
| 36 MW IT load | Ultimate two-building TKY01 campus Planned · cumulative | 2026-10-09 | Reported claim ↗ Excluded from capacity totals. Undated operator page retrieved on as_of date explicitly calls this total campus IT capacity; not proof that all 36 MW are commissioned. |
| 18 MW Unspecified power | First TKY01 building, TKY01A Operational · incremental | 2024-10-22 | Reported claim ↗ Excluded from capacity totals. As_of is opening/completion announcement date. Release reports 18 MW per building; commissioning and occupied load are not disclosed. |
| 18 MW Unspecified power | Second campus building, TKY01B Under Construction · incremental | 2026-02-06 | Reported claim ↗ Excluded from capacity totals. As_of is report publication date; additional standalone building expected Q4 2027. Included within the campus 36 MW, not additional to it. |
| 36 MW Unspecified power | Fully delivered TKY01 campus Planned · cumulative | 2025-10-23 | Reported claim ↗ Excluded from capacity totals. As_of is financing release date. Describes ultimate capacity with first 18 MW delivered in 2026 and expansion in 2027; delivery chronology conflicts with the 2024 first-building opening. |
| 6 MW Unspecified power | Brochure READYSTACK allocation within 36 MW campus Unknown · incremental | 2026-10-09 | Reported claim ↗ Excluded from capacity totals. As_of is retrieval date of undated brochure, not claim publication or delivery date. Product allocation only; overlaps campus and building totals. |
| 12 MW Unspecified power | Brochure POWERSTACK allocation within 36 MW campus Unknown · incremental | 2026-10-09 | Reported claim ↗ Excluded from capacity totals. As_of is retrieval date of undated brochure. Powered-shell allocation does not establish operational IT load; overlaps campus total. |
| 18 MW Unspecified power | Brochure HYPERSTACK/future-phase allocation within 36 MW campus Planned · incremental | 2026-10-09 | Reported claim ↗ Excluded from capacity totals. As_of is retrieval date of undated brochure. Future-phase product allocation; relationship to current TKY01B delivery should be reconciled, not added separately. |
STACK announces partnership with Oaktree-managed funds for the Inzai campus.
Supporting source ↗Initial announcement targeted this quarter; actual start date not established here.
Supporting source ↗Initial target subsequently superseded by later completion and delivery disclosures.
Supporting source ↗Operator announces first-facility completion and opening.
Supporting source ↗¥39.7 billion financing disclosed; release gives a conflicting first-building 2026 delivery schedule.
Supporting source ↗Report states operator announced groundbreaking that week; publication date is not an exact ceremony date.
Supporting source ↗Latest opened operator post and industry report expect second-building delivery in this quarter.
Supporting source ↗Operator Japanese page; financing release separately uses 5.7 acres, consistent with rounding.
Source ↗Current campus cards; area definition and final as-built dimensions not disclosed.
Source ↗Supply voltage is not a grid MW capacity claim.
Source ↗Japanese page; undated English brochure instead describes N+1 with optional STS. Design revision unresolved.
Source ↗Japanese page; English brochure lists N+1 chillers. Revision or building scope unresolved.
Source ↗Operator design specification, not independently tested endurance.
Source ↗Undated brochure availability claims, not independently verified active connections.
Source ↗Brochure design claims, not measured deployed density.
Source ↗Brochure wording describes support; no current certificate or audit was verified.
Source ↗Supports colocation classification; tenants are not named.
Source ↗2024 operator disclosure; does not establish current legal land ownership or ownership percentages.
Source ↗Source attribution does not imply independent verification or permission to reuse images.
Published Date unavailable · Retrieved 2026-10-09
Operator identifies the Inzai campus, two buildings, 36 MW total, and TKY01A/TKY01B at 18 MW each; lists 228,000 sq ft per building and TEPCO supply through a regional substation.
Published Date unavailable · Retrieved 2026-10-09
Japanese operator page explicitly identifies 36 MW as total campus IT capacity; describes 2.3 hectares, dual 66 kV lines, N+2 electrical and cooling redundancy, and seismic isolation.
Published 2022-01-13 · Retrieved 2026-10-09
Announces development with Oaktree-managed funds, two 18 MW buildings, hyperscale and enterprise customers, planned Q2 2022 groundbreaking and Q4 2023 capacity delivery.
Published 2024-10-22 · Retrieved 2026-10-09
Announces first-facility completion and opening at the 36 MW campus, developed through an IPI Partners/Oaktree partnership; describes two 18 MW buildings and second-facility development underway.
Published 2025-10-23 · Retrieved 2026-10-09
Operator release announces green financing, 5.7-acre site and ultimate 36 MW capacity; says first 18 MW will deliver in 2026 and another 18 MW in 2027, conflicting with the 2024 opening announcement.
Published 2026-02-06 · Retrieved 2026-10-09
Reports second-building groundbreaking, an additional standalone 18 MW building, expected Q4 2027 delivery and first-building launch in October 2024; links the operator announcement.
Published Date unavailable · Retrieved 2026-10-09
Public operator post confirms groundbreaking for a second standalone 18 MW building beside the existing 18 MW facility and expected Q4 2027 delivery. Accessible page displays relative age only.
Published Date unavailable · Retrieved 2026-10-09
Undated brochure describes rack-ready, powered-shell and build-to-suit options; 36 MW split into 6 MW READYSTACK, 12 MW POWERSTACK and 18 MW HYPERSTACK. Lists connectivity, target PUE, density and N+1 designs.
Published Date unavailable · Retrieved 2026-10-09
Register explicitly states records are current at March 31, 2025. Lists provisional TKY01 building construction in Inzai; extracted address contains 市原１丁目２番２, requiring reconciliation with reported 原１－２－２.
Published Date unavailable · Retrieved 2026-10-09
Contractor project record corroborates STACK/OCM Inzai TKY01 identity, Nikken Sekkei design and Takenaka construction; its own Moriya business address is not the data-center address.
Name: TKY01 — STACK Infrastructure
Aliases: TKY01 — STACK Infrastructure; Inzai / TKY01 — STACK Infrastructure
Kind: TKY01 — STACK Infrastructure
Country: STACK Infrastructure expands APAC footprint with new 36MW campus in Inzai, Japan; STACK Infrastructure Delivers First Data Center in Japan
Region: Chiba Prefecture smoke-emitting facility register
City: STACK Infrastructure expands APAC footprint with new 36MW campus in Inzai, Japan; STACK Infrastructure Delivers First Data Center in Japan; Chiba Prefecture smoke-emitting facility register
Metro: STACK Infrastructure Delivers First Data Center in Japan; STACK Infrastructure Secures ¥39.7 Billion in Green Financing to Advance Development of Tokyo Campus
Operator: STACK Infrastructure expands APAC footprint with new 36MW campus in Inzai, Japan; STACK Infrastructure Delivers First Data Center in Japan
Business Model: Tokyo, Japan TKY01/CAMPUS brochure
Scale: STACK Infrastructure expands APAC footprint with new 36MW campus in Inzai, Japan; STACK Infrastructure Delivers First Data Center in Japan
Statuses: STACK Infrastructure Delivers First Data Center in Japan; Stack breaks ground on second Tokyo data center; STACK Infrastructure — second Inzai data-center groundbreaking announcement
Summary: TKY01 — STACK Infrastructure; Inzai / TKY01 — STACK Infrastructure; STACK Infrastructure Delivers First Data Center in Japan; STACK Infrastructure Secures ¥39.7 Billion in Green Financing to Advance Development of Tokyo Campus; Stack breaks ground on second Tokyo data center; STACK Infrastructure — second Inzai data-center groundbreaking announcement
Location: STACK Infrastructure expands APAC footprint with new 36MW campus in Inzai, Japan; STACK Infrastructure Delivers First Data Center in Japan; Chiba Prefecture smoke-emitting facility register
Stable identifier: ef7a0e00-ceaa-4fd7-9279-132a4e8c76c6