Country profile · Rank 14 of 108 · Incumbent
Japan compute capacity
Japan runs about 2.0 GW of live datacenter capacity as of 7 September 2026, a Gross Domestic Compute of $100B. Its identified energy resource could host about 62 GW of AI compute, a ceiling worth $3.7 to 4.9T at today's price of a gigawatt, about 1.1 times its $4,435B GDP. The bankable slice today, discounted mainly for physical conditions and governance, is $1.0T, or $8,553 per person. Japan is an incumbent, ranked 14 of 108 countries by unlockable value.
Key numbers
| Live datacenter capacity | 2.0 GW | IT capacity, mid-2026, compiled from industry and national sources. |
|---|---|---|
| Live compute (GDC) | $100B | Live GW × $50B, the central price of an AI factory. |
| Resource ceiling | 62 GW | Identified hydro, geothermal, solar, wind and surplus fossil resource. |
| Ceiling value | $3.7 to 4.9T | Ceiling GW × $60 to 80B per GW, NVIDIA's all-in figure. |
| Ceiling as a multiple of GDP | 1.1× | High end over nominal GDP of $4,435B (IMF). |
| Unlockable value | $1.0T | Firm untapped GW × $50B × readiness. The bankable slice. |
| Unlockable per person | $8,553 | IMF population, 2026. |
| Built | 38.2% | Hydro and geothermal already installed, over the ceiling. |
| Readiness | 88% | Eight-part discount. Binding: physical conditions and governance. |
| Conversion score | 40 | 0 to 100. Unchanged since 19 Aug. |
| Tier | Incumbent | Ready and already priced in. Building now. |
| Rank | 14 of 108 | By unlockable value. 2 of 5 in East Asia. |
Three numbers, one scale
Ceiling is what the endowment could host; unlockable is the slice underwriters would sign today; live compute is what runs. Drawn on one linear scale on purpose: the gap is the point.
Projects on the ground
| Project | Scale | Status | Date |
|---|---|---|---|
| SoftBank Sakai, ex-Sharp plant (Stargate Japan anchor) | 150 to 250 MW, ~100k GPUs | Building | 2026 |
East Asia: how Japan compares
| # | Country | Unlockable | Live compute | Readiness | Tier |
|---|---|---|---|---|---|
| 5 |  China | $2.7T | $1.1T | 65% | Primed |
| 14 | Japan | $1.0T | $100B | 88% | Incumbent |
| 18 |  Mongolia | $724B | under $1B | 53% | Sleeping Giant |
| 79 |  South Korea | $172B | $40B | 83% | Incumbent |
| 81 |  Taiwan | $153B | $22B | 82% | Incumbent |
What compute costs right now
The price of the silicon a country would host, from the tape. Labeled buy-now prints from named venues.
Questions people ask
How much data center capacity does Japan have?
Japan runs about 2.0 GW of live datacenter IT capacity as of 7 Sep 2026, compiled from SemiAnalysis, Cushman & Wakefield, Rystad, Knight Frank and national reports. Valued at $50B per gigawatt, that is a Gross Domestic Compute of $100B.
What is Japan's compute net worth?
The ceiling is $3.7 to 4.9T: 62 GW of identified hydro, geothermal, solar, wind and surplus fossil resource valued at $60 to 80B per gigawatt, NVIDIA's all-in figure for an AI factory. That is 1.1 times Japan's $4,435B GDP. The bankable slice today, after a readiness discount of 88%, is $1.0T.
What holds Japan back from converting its energy into compute?
Readiness scores 88% on an eight-part discount stack (governance, stability, GPU access, grid, fiber, momentum, physical conditions and capital access). For Japan the binding discounts are physical conditions and governance. It has built 38.2% of its ceiling as generating capacity, and its conversion score is 40 of 100.
How does Japan compare with its neighbours?
Japan ranks 14 of 108 countries by unlockable value, and 2 of 5 in East Asia. The regional leader is China at $2.7T unlockable and $1.1T of live compute.
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