SoftBank Tomakomai AI Data Center (Japan)
300 MW AI data center in Tomakomai, Japan: under construction.
- Capacity: 300 MW
- Location: Tomakomai, Japan
- Developer: SoftBank Corp.
- Status: under construction
- Energy source: 100% renewable (local wind/cool climate)
SoftBank Tomakomai AI Data Center (Japan) is a 300 MW AI data center project located in Tomakomai, Japan, currently under construction. It is being built by SoftBank Corp.. Its energy source is listed as 100% renewable (local wind/cool climate). This project is one of thousands of data-center facilities tracked by Data Center Index across Japan, covering operational, under-construction, announced, and permitted sites.
Project description
SoftBank's 300 MW sovereign-AI data center in Tomakomai, Hokkaido is under construction with a 2026 start. It'll run Nvidia Blackwell hardware on fully renewable local wind power, and the cool climate handles part of the cooling.
Public companies linked to SoftBank Tomakomai AI Data Center (Japan)
Developers, tenants, and suppliers tracked by Data Center Index with exposure to this project:
- NVIDIA (NVDA), GPU supplier · semiconductor
Related data center projects
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Frequently asked questions
- What is SoftBank Tomakomai AI Data Center (Japan)?
- SoftBank Tomakomai AI Data Center (Japan) is an AI data center project in Tomakomai, Japan tracked by Data Center Index. Its status is under construction.
- Where is SoftBank Tomakomai AI Data Center (Japan)?
- SoftBank Tomakomai AI Data Center (Japan) is in Tomakomai, Japan.
- How big is SoftBank Tomakomai AI Data Center (Japan)?
- Data Center Index tracks SoftBank Tomakomai AI Data Center (Japan) at 300 MW. The developer or the press states that capacity, in a source dated August 1, 2024.
- Who is building SoftBank Tomakomai AI Data Center (Japan)?
- SoftBank Corp. is developing SoftBank Tomakomai AI Data Center (Japan).
- Which public companies are linked to SoftBank Tomakomai AI Data Center (Japan)?
- Data Center Index links 1 tracked public company to SoftBank Tomakomai AI Data Center (Japan): NVIDIA (NVDA). Each is a developer, tenant or supplier with a sourced link to the project.
Sources
- AI Data Center Index facility profile: Softbank Tomakomai Ai Data Center Japan (aidci · aggregator · 2026-04-29)
- SoftBank News (softbank.jp · press · 2025-05-01)
- SoftBank Corp. (Integrated Report 2024, CEO Message) (softbank.jp · press · 2024-08-01)