Facilities
10
Country Market
Japan
A source-backed view of AI data center activity inside the Japan market — operators, capacity, status, and energy profile. Japan has 10 tracked AI data center facilities with 2.2 GW of known capacity across 10 operators. 70% of facilities are operational.
Known Capacity
2.2 GW
Operators
10
Statuses
2
Operational
7
Peer Ranking
Where Japan stands among 64 tracked countries.
By facility count#5of 64
By known capacity#12of 64 · 2.2 GW
Head-to-Head Comparisons
Pre-built matchups involving Japan — facility count, capacity, status mix, and energy breakdown side by side.
Market Composition
How this slice breaks down
Status, operator concentration, and energy profile across 10 facilities.
Status distribution
Operational770%
Under construction330%
Top operators by capacity
Energy mix
Renewable660%
Mixed220%
Other / Unknown220%
National Market Brief
How this country market is taking shape
A compact read on operator concentration, live-versus-pipeline mix, and the largest disclosed site in this national slice.
Machine-readable Data
Frequently asked questions
- How many AI data centers are in Japan?
- The AI Data Center Index currently tracks 10 facilities in Japan with a combined known capacity of 2.2 GW. 10 operators are active in the market.
- Which companies operate AI data centers in Japan?
- 10 operators have tracked facilities in Japan. Visit the operator breakdown on this page to see the full list with facility counts and capacity data.
Operators Present
Status Mix
Facilities
| Facility | Operator | Location | Capacity ↓ | Status | Energy | Workload | Readiness | Sources |
|---|---|---|---|---|---|---|---|---|
| Amazon Web Services | Japan Tokyo | 500 MW | operational | Renewable | Mixed | 2 | ||
| Microsoft | Japan Tokyo & Osaka | 500 MW | operational | Renewable | Mixed | 1 | ||
| AirTrunk | Japan Chiba | 300 MW | under construction | Renewable | General Cloud | 1 | ||
| SoftBank Corp.NVIDIA | Japan Tomakomai, Hokkaido | 300 MW | under construction | Renewable | Sovereign AI | 2 | ||
| Amazon Web Services | Japan Kansai | 150 MW | operational | Renewable | Mixed | 2 | ||
| SoftBank | Japan Osaka | 150 MW | under construction | Other | General Cloud | 1 | ||
| Oracle | Japan Kanto | 100 MW | operational | Renewable | OCI AI, Oracle Database AI, enterprise AI workloads | 2 | ||
| Oracle | Japan Kanto | 100 MW | operational | Mixed | Mixed | 2 | ||
| Alibaba Cloud | Japan Kanto | 80 MW | operational | Mixed | Inference | 2 | ||
| National Institute of Advanced Industrial Science and Technology (AIST)Hewlett Packard EnterpriseNVIDIA | Japan Tsukuba | — | operational | Other | Mixed | 1 |