NRC Recommends Approval Of TVA's Clinch River BWRX-300 SMR Permit
Nuclear Regulatory Commission staff have recommended that the agency issue TVA a construction permit for a GE Vernova Hitachi BWRX-300 SMR at the Clinch River site in Tennessee, months ahead of the original schedule.
Key Takeaways
NRC staff recommended issuing TVA a construction permit for a GE Vernova Hitachi BWRX-300 SMR at the Clinch River Nuclear Site in Oak Ridge, Tennessee.
The safety evaluation report was released July 1, well ahead of the original November target, credited to review efficiencies and frequent TVA engagement.
The full commission is expected to complete its review by December 2026, after which TVA can pour first concrete on Clinch River Unit 1.
NRC staff found the application meets Atomic Energy Act standards and that TVA is technically and financially qualified to build and operate a BWRX-300.
Clinch River is the flagship reference plant for the ~300 MW BWRX-300, with other projects like Elementl Power in Ohio and SGE's UK fleet plan lined up behind the design.
Kaan Tınmaz
The Tennessee Valley Authority moved a decisive step closer to breaking ground on the first US small modular reactor after Nuclear Regulatory Commission staff recommended issuing a construction permit for a GE Vernova Hitachi Nuclear Energy (GVH) BWRX-300 unit at the Clinch River Nuclear Site in Oak Ridge, Tennessee.
Ahead Of Schedule
Staff released the safety evaluation report on July 1, well ahead of the November target the agency had originally shared with TVA. The NRC credited "review efficiencies and frequent and productive engagements with TVA" for the accelerated timeline. The full commission is expected to complete its review by December 2026, at which point TVA can pour first concrete on Clinch River Unit 1.
What The Reviewers Found
NRC staff concluded that the application meets the standards of the Atomic Energy Act, that the final design will conform to the safety basis with acceptable margin, and that TVA is technically and financially qualified to build and operate a BWRX-300. The utility remains the first US operator to file an SMR construction permit application under NRC rules.
Why It Matters For SMR Supply
Clinch River is the flagship reference plant for the BWRX-300, a ~300 MW boiling-water SMR that GE Vernova Hitachi has positioned as the low-capex, faster-to-build option in the SMR field. A favourable NRC decision would sharpen the case for other utilities lining up behind the design, including Elementl Power's Ohio project and SGE's UK fleet plan. It also feeds a wave of new nuclear activity powering data centres and hyperscalers, alongside pilots such as Valar Atomics' NVIDIA-linked Utah microreactor.
Reporting based on coverage from American Nuclear Society, POWER Magazine, World Nuclear News and Utility Dive.
What did the NRC recommend for TVA's Clinch River project?
NRC staff recommended the agency issue TVA a construction permit for a GE Vernova Hitachi BWRX-300 small modular reactor at the Clinch River Nuclear Site in Oak Ridge, Tennessee, releasing the safety evaluation report on July 1, months ahead of the original November target.
When can TVA start construction on Clinch River Unit 1?
The full NRC commission is expected to complete its review by December 2026, at which point TVA can pour first concrete on Clinch River Unit 1.
What is the BWRX-300?
It is a roughly 300 MW boiling-water small modular reactor from GE Vernova Hitachi Nuclear Energy, positioned as a low-capex, faster-to-build SMR option, with Clinch River serving as its flagship reference plant.
Why does the Clinch River decision matter beyond TVA?
A favourable NRC decision would strengthen the case for other utilities backing the BWRX-300, including Elementl Power's Ohio project and SGE's UK fleet plan, and supports a wave of new nuclear activity powering data centres and hyperscalers.
