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HWLWR — HWLWR

Reactor technology overview and global count

Total units2
Operational0
Under construction0
Suspended0
Shut down2
Countries2
Operating capacity—

In the WhereNuc dataset there are 2 recorded HWLWR units across 2 countries. The earliest recorded HWLWR unit entered commercial operation in 1972, the most recent in 1979. No HWLWR units are currently listed as operational in this dataset.

Countries using HWLWR reactors

CountryUnitsShare
Japan150%
Canada150%

Common HWLWR models

ModelUnits
ATR1
HW BLWR 2501
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Other reactor types

PWRBWRPHWRGCRLWGRFBR
Counts derived from the WhereNuc dataset (GeoNuclearData, WNA/IAEA-derived). Figures are approximate — verify official status with IAEA PRIS. Nuclear & uranium FAQ