NuScale Integral System Test Facilities (NIST)

Light water-cooled reactor (LWR) systems have benefitted from billions of dollars of research and development and millions of hours of operating experience of Light Water Reactors over the past 50 years. While this R&D provides a strong foundation for NuScale technology, what enables NuScale to truly stand out is its current access to state-of-the-art test facilities. These facilities include:

  • Stern Laboratories in Hamilton, Ontario Canada
  • SIET SpA, Piacenza Italy
  • NuScale’s Integral System Test facility at OSU in Corvallis, Oregon
  • NuScale's Control Room Simulator in Corvallis, Oregon

Working prototype at NIST
NuScale co-founder Dr. Jose Reyes developed the Dynamic System Scaling Methodology, an advanced concept to scaling test plants in order to replicate a nuclear power plant’s thermal-hydraulic and other systems’ performance under normal operating and all accident conditions, without requiring construction of a full-scale prototype.

NuScale’s exclusive access, one-third scale state-of-the-art, electrically-heated prototype test facility at NIST provides NuScale tremendous advantage for modular prototype testing. The facility has already demonstrated the viability of our new design.

The NIST facility was engineered by the same team that designed and operated the test facility used to certify the Westinghouse® AP600TM and AP1000TM designs.

The one-third scale prototype replicates the entire NuScale Power Module and reactor building pool. Electrically heated, it lets NuScale designers bring the system up to operating temperature and pressure. Stability testing ensures that throughout the expected operating conditions, natural circulation is stable.

Furthermore, tests validate computer models including thermal efficiency, performance, and safety calculations.
Integral Test Facility at OSU
NIST Prototype (click to expand)
NuScale Control Room Simulator
Control Room Simulator - Corvallis, Oregon (click to expand)
Passively Safe Technology
Multi-tiered Testing Program (click to expand)