🇯🇵 Japan Nuclear Restart Tracker
Reactor-by-reactor U3O8 demand implications · NRA licensing status · restart timeline
Updated May 2026
Sources: IAEA PRIS Q1 2026 · NRA Japan · WNA
Spot: $85.60/lb (UxC)
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15
Reactors Operating
4.65M lbs
Current Japan Demand/yr
+0.78M lbs
Licensed — If Restarted
+2.46M lbs
Under NRA Review
+0.88M lbs
Idle / Long-Lead
8.77M lbs
Total Japan Potential/yr
20M lbs
2010 Pre-Fukushima Peak

Japan Uranium Demand Recovery — Million lbs U3O8/yr

Operating: 4.65M lbs (15 reactors)
Licensed / awaiting consent: +0.78M lbs (2 reactors)
Under NRA review: +2.46M lbs (8 reactors)
Idle / long-lead: +0.88M lbs (2 reactors)
Decommissioned / lost: ~9.4M lbs
Japan consumed ~20M lbs U3O8/yr pre-Fukushima (54 reactors, ~46 GWe). 22 units have been or will be decommissioned. The remaining 27-unit fleet can recover to ~8.77M lbs/yr if all restart — still only 44% of 2010 peak demand. Every licensed restart is incremental demand with no new mine supply required.
ReactorUtilityType GWe NetStatus U3O8 Demand/yrNotes
Demand calculated at 70% capacity factor (Japan fleet average), 175 tU/GWe-yr, 2,599 lbs U3O8/tU. Source: IAEA PRIS Q1 2026, NRA Japan licensing database.
ReactorUtilityGWe Net Restart DateU3O8/yrNotes
15 reactors operating. Total: 14.61 GWe, 4.65M lbs U3O8/yr at 70% CF. Kashiwazaki-Kariwa 6 (TEPCO, 1.356 GWe) restarted Apr 2026 — first TEPCO restart post-Fukushima and the most significant demand addition since late 2024.
ReactorUtilityGWe Net NRA ApprovalU3O8/yrBlocker
Two reactors with full NRA approval remaining. KK-6 moved to operating (Apr 2026). KK-7 remains the next catalyst: same site as KK-6, Niigata consent now more likely given KK-6 precedent. KK-7 + Tokai 2 combined = 0.78M lbs/yr incremental demand if both restart.
ReactorUtilityGWe Net Review StageU3O8/yrExpected NRA Decision
NRA new regulatory standard reviews take 3-8 years typically. Tomari 3 and Higashidori 1 are most advanced. Shika 2 was damaged in the January 2024 Noto earthquake, delaying its review by 2-3 years. Hamaoka faces the most complex seismic/tsunami risk assessment.
ReactorUtilityGWe Net StatusU3O8/yrPath to Restart
Shimane 3 completed construction in 2023 and is in pre-application NRA consultation — a new build that never operated. Higashidori 2 has no active review; earliest possible restart 2029+.

Base Case — 2027

KK-6 restarted (Apr 2026 ✓). KK-7 restarts 2027; Tokai 2 remains blocked. Licensed tier: 2 of 2 active.
New demand added+0.43M lbs/yr
Total Japan demand5.08M lbs/yr
Japan demand / peak25%
Price impactModest — KK-6 already priced in

Bull Case — 2028

All 3 licensed restart. Tomari 3 + Higashidori 1 clear NRA.
New demand added+2.5M lbs/yr
Total Japan demand6.7M lbs/yr
Japan demand / peak34%
Price impactSignificant — forces new contracting

Max Restart — 2030+

All 27 operable units running. Full NRA review fleet restarted.
New demand added+4.5M lbs/yr
Total Japan demand8.77M lbs/yr
Japan demand / peak44%
Price impactMajor — equivalent to 2 new Camecos

Japan Uranium Demand Recovery Trajectory (M lbs U3O8/yr)

Scenarios assume sequential restart of licensed, then NRA-approved units. Pre-Fukushima peak (~20M lbs/yr) reflects 54-reactor fleet at ~82% CF. Base/Bull/Max scenarios are analyst estimates; actual timing depends on local consent, regulatory process, and utility capex decisions. Source: IAEA PRIS Q1 2026, NRA Japan, WNA.
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