Key Issues

New Reactor Designs

new plant construction The U.S. Nuclear Regulatory Commission has certified several reactor designs as meeting all safety requirements, and the agency expects to certify two more designs in the near term.

Near-Term Advanced Nuclear Plant Designs

The nuclear industry has developed several advanced reactor designs that can be ready to meet U.S. generating needs by 2015.

AREVA U.S. EPR
The U.S. EPR is 1,600-megawatt pressurized water reactor. AREVA submitted this design to the U.S. Nuclear Regulatory Commission in December 2007 for review and certification.

GE Hitachi Nuclear Energy Advanced Boiling Water Reactor
The ABWR is a 1,350- to 1,600-megawatt boiling water reactor. The NRC has certified the design.

GE Hitachi Nuclear Energy ESBWR
The ESBWR is a 1,520-megawatt boiling water reactor. The NRC is reviewing this design for certification.

Mitsubishi Heavy Industries Ltd. US-APWR

The US-APWR is a 1,700-megawatt pressurized water reactor. Mitsubishi submitted this design to the NRC for review and certification in December 2007.

Westinghouse AP1000
The AP1000 is a 1,117-1,154 megawatt pressurized water reactor. The NRC has certified the design.

Longer-Term Advanced Nuclear Plant Designs

The industry also is developing highly advanced new reactors based on new technologies. Some could be ready for commercial use in the United States by the end of the next decade, while others are expected to be available after 2020.

AREVA Antares
AREVA based the design for the Antares on the concept of a gas-cooled (helium) reactor. The company is developing the design in the context of the Generation IV International Forum.

Babcock & Wilcox Co. mPowerTM Reactor
The mPowerTM reactor design is a passively safe, modular 125-megawatt advanced light water reactor with a below-ground containment. B&W intends to apply for NRC design certification.

GE Hitachi (GEH) Nuclear Energy Power Reactor Innovative Small Module (PRISM)  
The PRISM is a 311-megawatt advanced reactor cooled by liquid sodium. GEH plans to apply for a combined license for a prototype.

General Atomics Gas Turbine Modular Helium Reactor (GT-MHR)
The GT-MHR is a high-temperature reactor with advanced gas turbine technology.

Hyperion Power Generation Hyperion Power Module (HPG)
The HPG is a 25-megawatt reactor about the size of a hot tub. The company plans to apply for NRC design certification.

NuScale Power Inc. NuScale Reactor

The NuScale is a 45-megawatt reactor. The company plans to apply for NRC design certification.

Pebble Bed Modular Reactor Ltd. PBMR
The PBMR is a high-temperature reactor with a closed-cycle, gas turbine power conversion system. PBMR Ltd plans to apply for NRC design certification.

Toshiba 4S (Super-Safe, Small and Simple) 
The 4S is a 10-megawatt reactor. Toshiba plans to apply for NRC design approval.

Westinghouse-Led Consortium International Partnership International Reactor Innovative and Secure (IRIS)
The IRIS is a modular, light-water reactor design, with each module capable of producing between 100 and 300 megawatts. The consortium plans to apply for NRC design certification.

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