Nuclear security

Next generation nuclear reactors being approved for new construction projects in U.S.

The current state-of-the-art in nuclear power plant reactor design and construction is known as Generation III+. These reactors are essentially safer versions of the Generation III reactors that began operation in 1996 starting with the Kashiwazaki-Kariwa commercial plant in Japan. Generation III+ reactors must operate within very strict safety guidelines. The power plant’s structure must be durable enough to withstand a plane crash without releasing radiation. Power plants must operate for periods of 60 years. The grace period after reactor shutdown, during which time no human intervention is required, must be 72 hours. Further, the risk of core melt accidents must be low enough that a risk assessment analysis returns a calculated core damage frequency (CDF) of 1×10-4 per year.