DOE Selects Sodium-Cooled Fast Reactor Design for Versatile Test Reactor in Idaho

The U.S. Department of Energy (DOE) recently issued a record of decision (ROD) to build a sodium-cooled fast test reactor at Idaho National Laboratory (INL). If appropriated by Congress, the Versatile Test Reactor (VTR) would be the first fast spectrum test reactor to operate in the United States in nearly three decades.

The VTR project would help modernize U.S. nuclear energy research and development infrastructure and dramatically accelerate the technology development for current and next-generation reactors.

The U.S. will need both existing and new advanced reactors to meet the nation’s goal of net-zero emissions by 2050.

DOE issued the ROD to build a high-flux, fast neutron test reactor at INL, along with additional facilities for post-irradiation examination and the management of spent VTR driver fuel. According to the Final VTR Environmental Impact Statement (EIS), building and operating the VTR test facility at the INL site would have minimal impacts to the environment.

“Bringing a fast neutron test source back to the U.S. is an investment in our transition to a future carbon-free economy,” said Assistant Secretary for Nuclear Energy Dr. Kathryn Huff. “Now that we have completed this important step in the decision-making process, I look forward to working with Congress to obtain the funding needed to someday make VTR a reality.”

A rendering of the proposed Versatile Test Reactor.
Photo Credit: U.S. Department of Energy

Although Congress did not provide Fiscal Year 2022 funding for VTR, DOE has requested FY 2023 funding to help move the VTR project forward toward the design phase.

DOE established the VTR program in 2018. The team includes experts from six national laboratories, 19 universities and nine industry partners. Learn more about the VTR project here.