nuclear facility; nuclear power facility; nuclear installation
A broad term covering nuclear power plants, research reactors, fuel processing plants, and other nuclear-related installations.
The nuclear facility is under strict security.
Construction of a new nuclear facility is being planned.
Specifically a nuclear power plant for electricity generation, while 原子力施設 is a broader term that includes research reactors, fuel processing plants, etc.
Compound of 原子力 (nuclear power) + 施設 (facility).