The US power utility Tennessee Valley Authority (TVA) has announced an agreement with nuclear energy company ENTRA1 Energy to develop up to 6 GW of new nuclear capacity, marking the largest small modular reactor (SMR) deployment program in the United States to date.
Under the agreement, ENTRA1 will develop and own six energy plants across TVA’s seven-state service area. ENTRA1 will sell the electricity generated to TVA under future power purchase agreements, which could potentially supply power to approximately 4.5 million homes or 60 new data centers.
The project will use SMRs developed by NuScale Power. ENTRA1 and NuScale Power already operate a joint venture, ENTRA1 NuScale, with ENTRA1 holding the rights to commercialize, distribute, and deploy NuScale’s technology. TVA’s announcement did not specify a project timeline or disclose financial details.
In May 2025, the U.S. Nuclear Regulatory Commission approved NuScale’s 77-MW power module and the design for a 462-MW small modular reactor power plant.
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