Skip to content
DataCentersExposed
Asia · data-center footprint

Japan

DataCentersExposed tracks 63 AI data centers in Japan — 1 operating and 0 in the pipeline — across 18 prefectures, run by 17 tracked operators.

Sources: Methodology, Coverage scorecard

What powers Japan's data centers

Ember · 2025
Carbon intensity
477
gCO₂/kWh
Clean electricity
33%
renewables + nuclear
Fossil electricity
67%
coal, gas & oil
Grid demand
1030
TWh / year
Demand growth
0%
per year
Tracked
63
Operating
1
In pipeline
0
Reported power
110 MW
prefectures
18
Operators
17
Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

By prefecture

Where the data centers are

Tokyo
22 tracked · 110 MW
Chiba
8 tracked
Osaka
6 tracked
Kyoto
4 tracked
Hokkaido
3 tracked
Nagano
3 tracked
Okayama
3 tracked
Hyogo
2 tracked
Iwate
2 tracked
Kagawa
2 tracked
Kagoshima
1 tracked
Hiroshima
1 tracked
Ehime
1 tracked
Kanagawa
1 tracked
Shizuoka
1 tracked
Kochi
1 tracked
Miyagi
1 tracked
Shimane
1 tracked
Facilities

Tracked data centers

In the local press

Latest Japan data-center coverage

Live headlines via Google News — in English and Japan's local press.