9 Evolution of Containment Systems for Gen III Reactors

The advanced reactors are often referred to as Generation III/III+ which are evolutionary or passive designs of pressurized water reactors (PWRs) and boiling water reactors (BWRs). In contrast to earlier generations of reactors, the advanced reactors rely on standardized designs which are simpler and more rugged and incorporate passive or inherent safety features, making them easier to operate and less vulnerable to operational upsets, therefore further reducing possibility of core melt accidents. The standardization process also facilitates expediting licensing, reducing capital cost, and shortening construction time.