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UAMPS and NuScale Power agree to terminate the Carbon Free Power Project; setback for SMRs

Utah Associated Municipal Power Systems (UAMPS) and NuScale Power Corporation (NuScale) have mutually agreed to terminate the Carbon Free Power Project (CFPP). The Carbon Free Power Project (CFPP) was to be the first NuScale Power small modular reactor (SMR) plant to begin operation in the United States near Idaho Falls, Idaho, at the DOE’s Idaho National Laboratory.

The SMR plant would have deployed six 77-megawatt modules to generate 462 megawatts of carbon-free electricity.

Despite significant efforts by both parties to advance the CFPP, it appeared unlikely that the project would have had enough subscription to continue toward deployment. Therefore, UAMPS and NuScale have mutually determined that ending the project is the most prudent decision for both parties.

Through our work with UAMPS and our partnership with the U.S. Department of Energy, we have advanced our NuScale Power Modules to the point that utilities, governments and industrials can rely on a proven small modular reactor (SMR) technology that has regulatory approval and is in active production. Our work with CFPP over the past ten years has advanced NuScale technology to the stage of commercial deployment; reaching that milestone is a tremendous success which we will continue to build on with future customers.

NuScale will continue with our other domestic and international customers to bring our American SMR technology to market and grow the US nuclear manufacturing base, creating jobs across the US. We thank UAMPS for the collaboration that has enabled this advancement.

—NuScale President and CEO John Hopkins

This decision is very disappointing given the years of pioneering hard work put into the CFPP by UAMPS, CFPP LLC, NuScale, US Department of Energy, and the UAMPS member communities that took the leadership role to launch the CFPP. Yet, this decision is the best course for the UAMPS members participating in the CFPP and doing what is best for those member communities will always be the guiding light in such decisions. We have learned many invaluable lessons during the development of the CFPP that we will carry forward in future development work to meet the future energy needs of the UAMPS member communities. We look forward to continuing to provide innovative and cost-effective new resource solutions to our members, and, at the same time, we hope NuScale is successful in deploying its technology.

—UAMPS CEO and General Manager Mason Baker

UAMPS is an interlocal agency of the State of Utah, established in 1980. As a project-based energy services entity, UAMPS provides a variety of power supply, transmission, and other services to its 50 members, which include public power utilities in seven western states: Utah, Arizona, California, Idaho, Nevada, New Mexico, and Wyoming.

The CFPP LLC is wholly owned by UAMPS and was created to develop the Carbon Free Power Project on behalf of participating UAMPS members.



Nuscale is old pressurized water technology. Utah should wait for the more advanced MSR, cheaper, safer, less waste.


Small fast reactors with liquid salt storage systems is the answer. Natrium is one of a few concepts for this. Wyoming is getting the first one at a former coal in any site going to reuse the sub station and probably the turbines too.

Fast reactors burn spent fuel down to fission ashes no need for millions of years of storage just a few hundred years of dry cask. You go from 96% remaining fuel and a 1% burnrate from raw uranium to 95% burn rates nearly a 100x increase in available energy from the same mined mass. They also burn every actinide so no long term transuranium products outside the fuel cycle.

With liquid salt storage systems you can load follow a grid that is loaded with intermittent solar / wind plus have peaker capacity if desired. A 300MW reactor could be a 500MW peaker if it could store its off peak output from the night times. Another use would be process heat via the salt circuit for industry,desalination or district heating. Added plus is salt is not reactive with water and sodium salts are non reactive with molten sodium as well. It's win win to have a salt loop between your liquid sodium coolant and steam turbines or supercritical CO2 which is also reactive with molten elemental sodium.

France is already going the full reprocessing with sodium fact modular reactors there was a post on this site about that a year or so ago.

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