GrowingJapanJapan · Nuclear Restart Era
Post-Fukushima Japan is restarting nuclear reactors partly to power AI data centers. The government's GX (Green Transformation) strategy explicitly links nuclear energy to AI competitiveness. SoftBank, NTT, and Sakura Internet are building sovereign AI infrastructure, while Amazon and Google are expanding. Japan's challenge is the highest industrial electricity prices among developed nations.
Power mix
Grid composition · 38% carbon-free · 60% fossil
Key operators
5 operators · 1,350 MW tracked capacity
Grid challenges
5 infrastructure constraints identified
- Highest industrial power costs among developed nations
- Nuclear restart pace slower than planned (NRA approvals)
- Earthquake and tsunami risk for coastal infrastructure
- Aging grid infrastructure needs modernization
- Summer peak demand already near capacity limits
Energy deals in region
Nuclear, renewable, and geothermal deals
No major energy deals tracked in this region.
This does not mean no deals exist. BenchGecko tracks publicly announced datacenter energy deals above 100 MW.
Water footprint
Cooling water consumption · stress level · source
Construction pipeline
Planned and under construction capacity
Sources
Every data point on this page is reproducible
Other energy regions
Compare datacenter power across all tracked regions
Northern VirginiaOregon · Pacific NorthwestTexas · ERCOTIowa · Midwest Wind Corridor
Ireland
Singapore