The Tennessee Valley Authority (TVA) and Type One Energy submitted a byproduct material license application with the state of Tennessee Thursday in preparation for a commercial fusion project.
TVA and Type One Energy additionally worked with the Tennessee Department of Environment and Conservation to prepare for the application, according to Type One Energy’s press release.
Founded in 2019, Type One Energy is a fusion company based out of Knoxville, Tenn.
The Nuclear Regulatory Commission (NRC) defines a byproduct material as “any radioactive material (except enriched uranium or plutonium) produced by a nuclear reactor.” Byproduct material also includes “the tailings or wastes produced by the extraction or concentration of uranium or thorium or the fabrication of fuel for nuclear reactors,” according to NRC.
In 2023, NRC decided to license fusion technologies under the byproduct materials regulatory framework. This regulatory framework, implemented by Agreement States, is the same regulatory system used to license particle accelerators and nuclear medicine facilities, according to the release.
Tennessee is one of 40 states that are an NRC agreement state.
TVA and Type One Energy announced plans to bring forth Project Infinity at TVA’s Bull Run site, a former coal plant, in Clinton, Tenn.in July 2025. The two entities have been collaborating since 2024 and first agreed to develop a fusion power plant in February 2025.
Project Infinity will have a Type One Energy’s Infinity One prototype, a workforce training center and a 350-megawatt Infinity Two fusion power plant, according to the release.
The Infinity Two fusion power plant will be using Type One Energy’s stellarator fusion technology. The company completed its initial design review for the plant in May 2025.
The project is planned to be implemented in phases with the Infinity One prototype to be commissioned and online in 2029. TVA also issued Type One Energy a letter of intent in September 2025 to develop the Infinity Two commercial fusion power plant with construction starting as early as 2028, depending on the necessary approvals.
“Today is an important milestone for Type One Energy, TVA and the state of Tennessee,” CEO of Type One Energy Christofer Mowry said. “We’ve been working closely together since February 2024,” for licensing fusion machines.”