Nuclear sites

Glossary

Plant Status

Operational: A unit is defined as Operating as of the date of initial criticality.

Construction: A unit is defined as Construction as of the date of first pouring concrete for the foundation of the nuclear systems.

Planned: A unit is defined as Planned when a contract has been signed to construct the unit.

Permanent shutdown: A unit is defined as Permanent Shutdown when the operating company declares the unit will not be restarted and commences the decommissioning process.

Reactor type

PWR: Pressurised light water moderated and cooled reactor

BWR: Boiling light water cooled and moderated reactor

PHWR: Pressurised heavy water moderated and cooled reactor

FBR: Fast breeder reactor

LWGR: Light water cooled, graphite moderated reactor

ASPP: Atomic-steam power plant

GCR: Gas cooled, graphite moderated reactor

REP: Reprocessing facility

HTGR: High temperature gas reactor

Our Vision

WANO and its members will be worldwide leaders in pursuing excellence in operational nuclear safety for commercial nuclear power.

Our Mission

To maximise the safety and reliability of nuclear power plants worldwide by working together to assess, benchmark and improve performance through mutual support, exchange of information, and emulation of best practices.