AP1000® Pressurized Water Reactor

Shaping Tomorrow’s Energy with the AP1000 PWR. Superior safety. Simplified design.

The established design of the AP1000® reactor offers three distinct advantages over other designs:

  • Unequaled safety
  • Economic competitiveness
  • Improved and more efficient operations

Gen III+ AP1000 reactor

Our Gen III+ AP1000 reactor has set the new industry standard for PWR thanks to our simplified, innovative, and effective approach to safety. This revolutionary technology is the result of over 60 years of successful operating nuclear power plant experience, leveraging enhanced versions of equipment found in currently operating Westinghouse-designed PWRs.

Several of the key AP1000 reactor advantages over other technology including:

  • Compacted footprint
  • Reduction in component and construction materials
  • Reduction in work hours to build
  • Modular construction

With four units setting records in full commercial operation, the AP1000 reactor represents the most advanced technology available today, able to supply over 1 GW of electricity to centralized power grids.

Simplification was a major design objective for the AP1000 reactor.

Simplification was a major design objective for the AP1000 reactor. The simplified plant design includes overall safety systems, normal operating systems, the control room, construction techniques, and instrumentation and control systems. The innovative AP1000 reactor design features: fewer safety-related valves, less safety-related piping, less control cable, fewer pumps, less seismic building volume.

Today's Energy Landscape


AP1000 rendering

The AP1000® PWR: Simply Electric

The Westinghouse AP1000 pressurized water reactor (PWR) is the most advanced commercially available nuclear power plant. Find out what sets it apart.

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Passive Safety Systems and Timeline for Station Blackout

The advanced-passive safety systems on the AP1000 PWR provide an unmatched level of defense-in-depth.

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