JAPAN POWERWATCHToday's signals
DECOMMISSIONING INTELLIGENCE

Track the work
after shutdown.

Japan's retired-reactor portfolio, Fukushima Daiichi programme and the regulatory and commercial milestones that turn long schedules into actionable work.

Denominator boundary

The 27 JAIF closed-down units include 18 ordinary commercial units, 6 Fukushima Daiichi units, 2 research/development reactors and 1 completed dismantlement. They are outside the 33 existing commercial-reactor fleet.

ORDINARY COMMERCIAL18

units at 10 sites

FUKUSHIMA DAIICHI6

separate accident-site programme

RETIRED CAPACITY17.88 GW

nameplate sum across all 27 CD entries

KNOWN END DATES2030–64

JAIF targets; not guaranteed completion

DECOMMISSIONING GEOGRAPHY

27 JAIF closed-down units · 14 locations

SOURCE-DATED · NOT LIVE
•JPDR•Fugen1Tokai12Hamaoka123456Fukushima Daiichi1Tsuruga12Mihama12Genkai1Shimane12Ikata•Monju12Ohi1Onagawa1234Fukushima Daini
CommercialFukushima DaiichiResearch / developmentCompleted

Unit membership and notes: JAIF CD table, 2026-09-09. The 27-unit denominator includes research reactors and one completed dismantlement; it is not the 33-unit existing commercial fleet. Approximate placement uses a Natural Earth coastline.

NATIONAL PORTFOLIO

Where conventional work concentrates

Fuel & systems

Defuelling, system isolation and long-term plant maintenance.

Characterization

Radiological surveys, sampling, inventory definition and digital records.

Dismantling

Remote handling, segmentation, demolition and worker-protection systems.

Waste & clearance

Treatment, packaging, storage, transport and clearance measurement.

FUKUSHIMA DAIICHI

A separate programme

Fuel debris, damaged containment, contaminated water and site-scale waste make Fukushima Daiichi materially different from ordinary reactor dismantlement.

Fuel debrisUnit 3 containment investigated with micro-dronesTEPCO source ↗
Site preparationUnit 1 reactor-building large cover completedTEPCO source ↗
REGULATORY GATES

Approval is iterative

The NRA approves the decommissioning plan and material changes. Detailed future work may require later plan amendments before execution, so a target year is not proof that a specific dismantling package has started.

NRA regulatory framework ↗METI Fukushima roadmap ↗

Prototype coverage: reactor membership, shutdown dates, nameplate capacity and completion notes are normalized from JAIF's dated CD table. The page does not yet provide exhaustive procurement notices, waste volumes or live project progress; no missing value is estimated.