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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteThe U.S. Nuclear Regulatory Commission (NRC) has issued the Tennessee Valley Authority (TVA) a construction permit for one GE Vernova Hitachi BWRX-300 small modular reactor at the Clinch River site in Tennessee. That is a significant U.S. licensing milestone—not approval to load fuel or generate electricity, and not evidence that the reactor is dedicated to a data center. The connection to data centers is currently the wider demand for power, not a documented supply deal for this unit.
What did the NRC approve for TVA?
On September 29, 2026, GE Vernova Hitachi announced that the NRC had issued TVA a construction permit for Clinch River Unit 1, near Oak Ridge, Tennessee. The company described it as the first U.S. construction permit for a BWRX-300. TVA submitted its application in April 2025, according to the announcement. GE Vernova Hitachi’s announcement
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The permit authorizes construction of one reactor at that site. It does not authorize operation. TVA would need a later authorization before loading fuel or generating electricity; the unit is not yet producing power or serving any customer. TechRadar’s report
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The NRC describes the BWRX-300 as an approximately 300 MWe, water-cooled, natural-circulation small modular reactor with passive safety features. UK regulator guidance identifies it as boiling-water reactor technology. NRC project summary · UK government GDA guidance
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Is TVA’s reactor actually dedicated to a data center?
The available project announcement does not name a data-center customer or describe a dedicated power supply agreement for Clinch River Unit 1. The permit is relevant to discussions about data centers because AI and data-center growth is increasing attention on large, reliable electricity supplies. But that broader context should not be mistaken for a confirmed plan to supply a particular data center.
TechRadar reported that the NRC completed its assessment in 14 months. That timing is TechRadar’s account, rather than a duration stated in the manufacturer’s announcement. TechRadar’s report
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How does the U.S. milestone compare with the UK?
The UK has completed Step 2 of the BWRX-300’s Generic Design Assessment (GDA). A GDA assesses a reactor design; it is not a site-specific construction approval. UK regulators said the assessment found no fundamental shortfalls that could prevent deployment in England and Wales, while making clear that detailed assessment and site-specific permissions would still be needed. Their announcement also said no plans or sites for deployment in England and Wales had then been identified. UK regulators’ Step 2 announcement
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|---|---|---|
| TVA, Clinch River, Tennessee | The NRC issued a construction permit for one BWRX-300 unit. | A later operating authorization is required before fuel loading or electricity generation. |
| BWRX-300 design assessment, UK | Step 2 of the generic design assessment is complete; regulators reported no fundamental shortfalls preventing deployment in England and Wales. | Detailed assessment and site-specific approvals, including environmental permits, development consent and an ONR nuclear site licence, remain necessary before construction. No deployment site or plan had then been identified. |
| Blue Energy proposal, Texas | GE Vernova Hitachi said Blue Energy submitted the first part of an NRC construction-permit application in September 2026 for a planned BWRX-300 in a gas-plus-nuclear project. | The announcement establishes an application milestone, not an issued construction permit or a data-center supply arrangement. |
These projects are at different regulatory stages: Clinch River has a site-specific construction permit, the UK has completed a design-assessment step, and the Texas proposal is at an application stage. The available announcements do not establish matching construction schedules or a confirmed data-center customer for any of them. GE Vernova Hitachi’s announcement · UK regulators’ announcement · UK government GDA guidance
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What the permit means—and what it does not
- It means: TVA has authorization to build one BWRX-300 at Clinch River under the construction permit.
- It does not mean: the reactor has an operating license, can load fuel, or is generating electricity.
- It does not establish: that a data center is the unit’s customer, or that a dedicated power agreement exists.
- It does not make the UK assessment a build approval: the GDA is a design review, and site-specific permissions remain required.
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