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.. Power for the facility is sourced from 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 Tomakomai data center on Hokkaido is a 300 MW sovereign-AI build under construction with a 2026 start, running Nvidia Blackwell hardware on fully renewable local wind power — the cool climate does part of the cooling work.
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) — developer · semiconductor
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