{"generated_at":"2026-07-12T03:07:33.997Z","license":"CC BY 4.0","taxonomy":{"type":"country","name":"Japan","slug":"japan","item_count":10,"total_megawatts":2180},"items":[{"id":"aws-tokyo-ap-northeast-1-japan","title":"Amazon Web Services — AP-NORTHEAST-1 Tokyo Region","url":"https://aidatacenterindex.com/datacenters/aws-tokyo-ap-northeast-1-japan.html","megawatts":500,"companies":["Amazon Web Services"],"country":"Japan","region":"Tokyo","city":"Tokyo","status":"operational","energy_type":"Mixed (Grid with renewable targets — TEPCO/JERA grid)","ai_focus":"General Cloud + AI Inference (Bedrock, SageMaker AP, Trainium/Inferentia clusters)","start_year":2011,"lat":35.689,"lng":139.692,"sources":["https://aws.amazon.com/about-aws/global-infrastructure/regions_az/","https://aws.amazon.com/jp/local/japan/"]},{"id":"microsoft-japan-ai-data-centers","title":"Microsoft — Japan AI Data Centers (Tokyo & Osaka)","url":"https://aidatacenterindex.com/datacenters/microsoft-japan-ai-data-centers.html","megawatts":500,"companies":["Microsoft"],"country":"Japan","region":"Tokyo & Osaka","city":"Tokyo","status":"operational","energy_type":"Grid (TEPCO / Kansai Electric) + Renewable PPA","ai_focus":"Training and Inference (Azure OpenAI, Copilot)","start_year":2024,"lat":35.6762,"lng":139.6503,"sources":["https://blogs.microsoft.com/on-the-issues/2024/04/10/microsoft-japan-ai-investment/"]},{"id":"airtrunk-tok1-ai-expansion-tokyo","title":"AirTrunk — TOK1 AI Expansion (Tokyo)","url":"https://aidatacenterindex.com/datacenters/airtrunk-tok1-ai-expansion-tokyo.html","megawatts":300,"companies":["AirTrunk"],"country":"Japan","region":"Chiba","city":"Inzai","status":"under_construction","energy_type":"Renewable","ai_focus":"General Cloud","start_year":null,"lat":35.833,"lng":140.133,"sources":["https://airtrunk.com/airtrunk-secures-landmark-green-loan-for-japan-expansion/"]},{"id":"softbank-tomakomai-ai-data-center-japan","title":"SoftBank Tomakomai AI Data Center (Japan)","url":"https://aidatacenterindex.com/datacenters/softbank-tomakomai-ai-data-center-japan.html","megawatts":300,"companies":["SoftBank Corp.","NVIDIA"],"country":"Japan","region":"Tomakomai, Hokkaido","city":"Tomakomai","status":"under_construction","energy_type":"100% renewable (local wind/cool climate)","ai_focus":"Sovereign AI (NVIDIA Blackwell, AI-RAN)","start_year":2026,"lat":42.636,"lng":141.603,"sources":["https://nvidianews.nvidia.com/news/softbank-nvidia-sovereign-ai-japan","https://www.softbank.jp/en/corp/news/press/sbkk/2024/20241113_01/"]},{"id":"aws-osaka-ap-northeast-3-japan","title":"Amazon Web Services — Osaka Region (AP Northeast 3)","url":"https://aidatacenterindex.com/datacenters/aws-osaka-ap-northeast-3-japan.html","megawatts":150,"companies":["Amazon Web Services"],"country":"Japan","region":"Kansai","city":"Osaka","status":"operational","energy_type":"Mixed (renewable targets)","ai_focus":"Disaster recovery, AI inference, regional cloud","start_year":2021,"lat":34.6937,"lng":135.5023,"sources":["https://aws.amazon.com/about-aws/global-infrastructure/regions_az/","https://aws.amazon.com/blogs/aws/aws-asia-pacific-osaka-local-region-now-open/"]},{"id":"softbank-sakai-ai-data-center-osaka","title":"SoftBank — Sakai AI Data Center","url":"https://aidatacenterindex.com/datacenters/softbank-sakai-ai-data-center-osaka.html","megawatts":150,"companies":["SoftBank"],"country":"Japan","region":"Osaka","city":"Sakai","status":"under_construction","energy_type":"Unknown","ai_focus":"General Cloud","start_year":null,"lat":34.573,"lng":135.483,"sources":["https://group.softbank/en/news/press/20240510"]},{"id":"oracle-cloud-japan-east-tokyo","title":"Oracle Cloud — Japan East (Tokyo)","url":"https://aidatacenterindex.com/datacenters/oracle-cloud-japan-east-tokyo.html","megawatts":100,"companies":["Oracle"],"country":"Japan","region":"Kanto","city":"Tokyo","status":"operational","energy_type":"Mixed (renewable targets)","ai_focus":"OCI AI, Oracle Database AI, enterprise AI workloads","start_year":2019,"lat":35.6762,"lng":139.6503,"sources":["https://www.oracle.com/cloud/public-cloud-regions/","https://www.oracle.com/news/announcement/oracle-expands-cloud-infrastructure-in-japan-2023/"]},{"id":"oracle-japan-ai-cloud-region","title":"Oracle Cloud — Japan East AI Region (Tokyo)","url":"https://aidatacenterindex.com/datacenters/oracle-japan-ai-cloud-region.html","megawatts":100,"companies":["Oracle"],"country":"Japan","region":"Kanto","city":"Tokyo","status":"operational","energy_type":"Mixed","ai_focus":"Training, Inference (OCI GPU clusters, enterprise AI)","start_year":2019,"lat":35.6762,"lng":139.6503,"sources":["https://www.oracle.com/cloud/public-cloud-regions/","https://www.oracle.com/news/announcement/oracle-opens-new-cloud-region-in-japan-2024-08-29/"]},{"id":"alibaba-cloud-japan-ai-region","title":"Alibaba Cloud — Japan Region (Tokyo)","url":"https://aidatacenterindex.com/datacenters/alibaba-cloud-japan-ai-region.html","megawatts":80,"companies":["Alibaba Cloud"],"country":"Japan","region":"Kanto","city":"Tokyo","status":"operational","energy_type":"Mixed","ai_focus":"Alibaba AI Platform PAI, LLM inference, Japanese enterprise AI","start_year":2016,"lat":35.6762,"lng":139.6503,"sources":["https://www.alibabacloud.com/global-locations/japan","https://www.alibabacloud.com/product/machine-learning"]},{"id":"aist-abci-3-ai-supercomputer-japan","title":"AIST ABCI-3 Supercomputer (Japan)","url":"https://aidatacenterindex.com/datacenters/aist-abci-3-ai-supercomputer-japan.html","megawatts":null,"companies":["National Institute of Advanced Industrial Science and Technology (AIST)","Hewlett Packard Enterprise","NVIDIA"],"country":"Japan","region":"Kashiwa, Chiba","city":"Kashiwa","status":"operational","energy_type":"Grid (liquid cooling and efficiency features)","ai_focus":"National AI supercomputing (cloud service)","start_year":2025,"lat":35.8622,"lng":139.977,"sources":["https://www.hpe.com/us/en/newsroom/press-release/2024/07/hewlett-packard-enterprise-to-deliver-aists-next-generation-supercomputer-powered-by-nvidia-for-generative-ai.html","https://abci.ai/en/about_abci/","https://abci.ai/en/about_abci/computing_resource.html","https://www.aist.go.jp/kashiwa/en/access/","https://top500.org/system/180390/"]}]}