Small Modular Reactor (SMR) Nuclear Technology

Fluor is a majority investor in NuScale Power, a small modular reactor (SMR) technology company based in Portland, Oregon. As the first ever to receive U.S. Nuclear Regulatory Commission (NRC) design approval, the company's SMR features a fully factory fabricated NuScale Power Module™, capable of generating 77 megawatts of electricity (MWe). NuScale offers an array of power plant solutions to meet diverse energy needs—from its flagship 12-module 924 MWe (gross) power plant to a 6-module (462 MWe) plant and a 4-module (308 MWe) plant.

NuScale is bringing the first SMR power plant online in the U.S. this decade. Its first customer, the Utah Associated Municipal Power Systems (UAMPS), will site a 924 MWe 12-module NuScale power plant in Idaho as part of its Carbon Free Power Project (CFPP). The first module will be operational by mid-2029, with the remaining 11 modules to come online for full plant operation by 2030.

Innovative Technology

NuScale's SMRs are factory-built with no in-field construction, erection, or fabrication, and they are transported to the power plant site, which takes safety-related work out of the field. NuScale plants are also economical, as they reflect lower levelized and overnight costs on a per kilowatt basis when compared to large advanced nuclear plants. NuScale's range of power plant solutions makes them suitable for a range of needs and geographic areas, including remote locations or retiring coal power plant sites.

A 924 MWe NuScale plant would avoid over 8 million tons of CO2 emissions per year as compared to coal—the equivalent of taking 1.7 million cars off the road for a year. The plant could also produce enough carbon-free energy to power nearly 700,000 homes in the U.S. A NuScale SMR power plant generates 100 percent carbon-free energy, comparable to solar, wind, or hydropower generation, but with a significantly smaller land footprint.

With NuScale's Triple Crown for Nuclear Plant Safety™, the SMR safely shuts down and self-cools indefinitely with no operator action, no AC or DC power, and no additional water—a first for commercial nuclear power. In January 2018, the NRC concluded that application of NuScale's safety design approach eliminates the need for class 1E power, the regulatory standard set for the design of safety-related nuclear power plant electrical systems, for its small modular reactor. It is the only SMR to offer this feature. In 2019 the American Society of Mechanical Engineers (ASME) recognized NuScale's quality management by issuing the N Certificate of Authorization. This allows NuScale to apply a Certification Mark (N-Stamp) to its innovative NuScale Power Module, signifying that it has been designed and constructed in accordance with Section III of the ASME Boiler and Pressure Vessel Code.

International Activity and Investment

NuScale is advancing along the path toward commercialization of its SMR technology, including supply chain development, standard plant design, planning of plant delivery activities, and startup and commissioning plans. The company has signed agreements with entities in the U.S., Canada, Romania, the Czech Republic, Ukraine, and Jordan, and it continues to field significant global interest in its SMR technology.

In July 2019, NuScale announced agreements with Doosan Heavy Industries and Construction (DHIC) and Sargent & Lundy to provide cash investments and deployment support to NuScale. Both companies will furnish technical expertise, and DHIC will also manufacture key components of the reactor. In November 2020, a new agreement was announced with Sargent & Lundy and Fluor, under which Fluor will design the turbine island and balance-of-plant facilities and Sargent & Lundy will design the nuclear island.


Safe - NuScale's passive safety systems, using natural circulation for emergency feedwater cooling, eliminate the need for external emergency power. Modules are submerged in a below-grade water pool in a seismic category 1 building, making them resilient to a suite of natural events including earthquakes, hurricanes, tornados, and floods.

Modular - Factory fabrication of modular components at U.S. and international facilities helps lower costs, reducing lead times, and providing flexibility for changing demand volumes.

Scalable - Modules can be added to a plant incrementally, offering the benefits of carbon-free energy and reducing the financial commitments associated with gigawatt-sized nuclear facilities. NuScale currently offers its 924 MWe flagship 12-module power plant, 308 MWe 4-module plant, and 462 MWe 6-module plant, though other configurations are possible.

Reliable - Under a micro-grid arrangement, a 924 MWe NuScale power plant can provide 154 MWe of highly reliable power at 99.95% reliability to mission critical infrastructure without the need for a more expensive backup battery or diesel-fueled power supplies, and can provide 770 MWe of high capacity, reliable baseload generation at over 95%.

Off-the-Shelf Technologies - The design minimizes the need for additional research and development. The SMR consists of an integral nuclear steam supply system in which the reactor core, the steam generators, and the pressurizer are all contained in a single vessel. The simple design eliminates reactor coolant pumps, large bore piping and other systems and components found in large conventional reactors.

Small Electric Grid Application - NuScale's range of power plant solutions can meet diverse needs and geographic areas, including small grids, island installations, remote off-grid communities, and the retirement of coal power plant sites.