Home

The final module has been placed on top ITER's central solenoid superconducting magnet, which was contributed by the United States to ITER.

Central solenoid final module in place

Read Article

The United States is a partner nation in ITER, an unprecedented international collaboration of scientists and engineers working to design, construct, and assemble a burning plasma experiment that can demonstrate the scientific and technological feasibility of fusion. ITER’s other partners are the People’s Republic of China, the European Union (host), IndiaJapanthe Republic of Korea, and the Russian Federation.

Mission: Produce a self-sustaining burning plasma

US ITER is a DOE Office of Science project managed by Oak Ridge National Laboratory in Tennessee. Partner labs are Princeton Plasma Physics Laboratory and Savannah River National Laboratory. Involvement in ITER provides significant benefits to the United States for a limited investment (~9% of construction costs): The nation has access to all ITER technology and scientific data, the right to propose and conduct experiments, and the opportunity for U.S. industry, universities, and laboratories to design and construct parts. The United States contributes hardware, personnel, and cash contributions for its share of common expenses such as personnel infrastructure, assembly, and installation.

Aerial photograph of the ITER international fusion project in southern France.
ITER site, May 2026.

Latest News