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大阪堺AIデータセンター · Sakai AI Data Center
SoftBank is developing an AI data center on acquired former Sharp LCD factory property in Sakai, Osaka Prefecture. It is intended for internal AI development and external computing services. Current operator targets specify FY2027 operations. Historical receiving-power plans and the newer 140 MW computing-infrastructure estimate have different scopes and must not be added. KDDI's Osaka Sakai Data Center is a separate project.
Statements retain their dates, definitions and development scope. Do not add these rows together.
| Claim / measurement | Scope and status | As of | Evidence and accounting |
|---|---|---|---|
| ≈150 MW Grid connection | Initial AI data center receiving-power plan in the 2024 announcement Planned · cumulative | 2024-06-07 | Reported claim ↗ Excluded from capacity totals. As_of is announcement date. Japanese source specifies receiving capacity, not IT load; historical proposal. |
| >400 MW Grid connection | Future expanded receiving-power capacity in the 2024 proposal Planned · cumulative | 2024-06-07 | Conflicting claim ↗ Excluded from capacity totals. Historical expansion target; later announcement instead states above 250 MW. Do not add to initial capacity or treat as current committed supply. |
| ≈150 MW Grid connection | AI data center receiving-power capacity under the 2025 acquisition plan Planned · cumulative | 2025-03-14 | Reported claim ↗ Excluded from capacity totals. As_of is announcement date; associated with then-targeted 2026 operations. Not operational power or IT load. |
| >250 MW Grid connection | Future expanded receiving-power capacity under the 2025 acquisition plan Planned · cumulative | 2025-03-14 | Reported claim ↗ Excluded from capacity totals. Revised future target compared with 2024's above-400 MW proposal; includes expansion rather than an additive increment. |
| ≈140 MW Grid connection | Estimated receiving power required for targeted 110 exaFLOPS Sakai AI computing infrastructure Planned · unclear | 2026-05-11 | Estimate claim ↗ Excluded from capacity totals. As_of is dated investor briefing. Footnote explicitly describes an estimated requirement; relationship to historical site receiving capacity and expansion is unspecified. Current KPI targets FY2027 operations. |
Announced proposed conversion of former LCD factory assets into an AI data center.
Supporting source ↗2024 announcement targeted full operations in 2025; later operator plans superseded this target.
Supporting source ↗SoftBank signed an approximately ¥100 billion land/building acquisition agreement with Sharp; signing is distinct from closing.
Supporting source ↗Investor presentation stated acquisition was complete; this date is the presentation date, not an independently established closing date.
Supporting source ↗2025 announcement targeted operations during 2026; current operator KPI instead indicates FY2027.
Supporting source ↗AI data center positioned alongside planned AI hardware and energy-related manufacturing activities.
Supporting source ↗Current operator KPI targets FY2027 operations for Sakai; no actual opening was established.
Supporting source ↗2025 disclosed property scope; not a measured data hall footprint. Earlier proposal reported approximately 440,000 m².
Source ↗Existing buildings contemplated for reuse; not confirmed dedicated data center floor area. Earlier proposal reported approximately 750,000 m².
Source ↗Planned infrastructure; no deployed performance or GPU count established.
Source ↗Reuse intention; detailed server cooling design and redundancy were not disclosed in reviewed evidence.
Source ↗GPU/cloud services do not establish conventional colocation or named committed tenants.
Source ↗An aspiration; no site-specific achieved certification, PUE or renewable-energy percentage established.
Source ↗AI operations/hardware and battery/solar manufacturing have different functions and schedules; no separate facility hierarchy proposed.
Source ↗Source attribution does not imply independent verification or permission to reuse images.
Published 2025-03-14 · Retrieved 2026-10-09
Purchase agreement for former Sharp property in Sakai; approximately 450,000 m² land and 840,000 m² building floor area; approximately 150 MW receiving capacity, future expansion above 250 MW and a 2026 operating target.
Published 2024-06-07 · Retrieved 2026-10-09
Original joint announcement: approximately 440,000 m² land, 750,000 m² building floor area, approximately 150 MW receiving capacity and future expansion above 400 MW; planned autumn 2024 construction and 2025 operations. Includes planned-area aerial and existing factory exterior photographs.
Published Date unavailable · Retrieved 2026-10-09
Report page 23 names Osaka Sakai AI Data Center, describes acquired Sharp property and internal/external AI use, and repeats the 2026 opening and approximately 150 MW/above 250 MW plans.
Published 2026-05-11 · Retrieved 2026-10-09
Slide 47 includes Sakai construction investment and 140 MW, explicitly defined as estimated power receiving capacity required for the targeted 110 exaFLOPS AI computing infrastructure.
Published Date unavailable · Retrieved 2026-10-09
Current operator KPI specifies Sakai AI data center operations in FY2027 with 140 MW; footnote defines estimated receiving capacity required for the planned 110 exaFLOPS infrastructure.
Published 2026-05-11 · Retrieved 2026-10-09
Identifies the developing Osaka Sakai AI Data Center on former Sharp property as the core of AX and GX factories; distinguishes AI operations/hardware manufacturing from battery and solar manufacturing.
Published 2025-09-27 · Retrieved 2026-10-09
Slide 23 states acquisition of Sharp Sakai land and buildings was completed, with approximately ¥100 billion investment.
Published 2026-01-22 · Retrieved 2026-10-09
KDDI announces its own Osaka Sakai Data Center operations on January 22, 2026, using former Sharp assets acquired in April 2025; this opening does not establish SoftBank operations.
Name: SoftBank Corp. Integrated Report 2025 — What Is Our Long-term Growth Strategy?; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
Aliases: SoftBank Corp. Investor Briefing — Earnings Results for the Fiscal Year Ended March 31, 2026; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
Kind: AIデータセンターの構築に向けて、シャープ堺工場の土地や建物の取得に関する契約を締結; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
Country: SoftBank Corp. Integrated Report 2025 — What Is Our Long-term Growth Strategy?; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
Region: AIデータセンターの構築に向けて、シャープ堺工場の土地や建物の取得に関する契約を締結; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
City: AIデータセンターの構築に向けて、シャープ堺工場の土地や建物の取得に関する契約を締結; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
Operator: SoftBank Corp. Integrated Report 2025 — What Is Our Long-term Growth Strategy?; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
Owner: ソフトバンク株式会社 日経・東証IRフェア2025会社説明会; SoftBank Corp. Integrated Report 2025 — What Is Our Long-term Growth Strategy?
Business Model: SoftBank Corp. Integrated Report 2025 — What Is Our Long-term Growth Strategy?
Statuses: ③AIとの共存社会を支える次世代社会インフラの実現; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era
Location: AIデータセンターの構築に向けて、シャープ堺工場の土地や建物の取得に関する契約を締結; シャープ堺工場を活用した大規模なAIデータセンターの構築について
Summary: AIデータセンターの構築に向けて、シャープ堺工場の土地や建物の取得に関する契約を締結; SoftBank Corp. Integrated Report 2025 — What Is Our Long-term Growth Strategy?; SoftBank Corp. Investor Briefing — Earnings Results for the Fiscal Year Ended March 31, 2026; ③AIとの共存社会を支える次世代社会インフラの実現; SoftBank Corp. Launches Gigawatt-Hour-Scale Battery Business in Japan to Build Next-Generation Infrastructure that Supports the AI Era; 大阪堺データセンターを1月22日から稼働開始
Stable identifier: 72917e06-af2f-4dfd-989e-ac7cf3c2010d