GE Vernova Hitachi Nuclear Energy
BWRX-300 boiling water SMR
Ranked #1 in Best Small Modular Reactor Companies.
GE Vernova Hitachi Nuclear Energy, a joint venture of GE Vernova and Hitachi based in Wilmington, North Carolina, designs the BWRX-300, a 300-megawatt boiling water SMR. Canada's regulator licensed construction of the first unit at Ontario Power Generation's Darlington site in April 2025, and the US NRC issued a construction permit for TVA's Clinch River unit in September 2026.
At a glance
| Price from | Custom |
| Best for | Utilities that want an SMR already licensed for construction |
From GE Vernova Hitachi Nuclear Energy's own website.
What stands out
- Licensed for construction in Canada and the US
- Builds on proven boiling water reactor technology
Worth knowing
- First units not yet operating
- Costs of first plants still unproven
How it ranks
GE Vernova Hitachi Nuclear Energy is ranked 1st of 10 in Best Small Modular Reactor Companies (Lister Score 97.2).
#1 in Best Small Modular Reactor Companies · Lister Score 97.2
The NRC issued TVA a construction permit for a BWRX-300 at Clinch River, Tennessee on 29 September 2026..
| Rank | Best Small Modular Reactor Companies | Score |
|---|---|---|
| 1 | GE Vernova Hitachi Nuclear Energy | 97.2 |
| 2 | NuScale Power | 95.9 |
| 3 | TerraPower | 94.8 |
| 4 | Rolls-Royce SMR | 93.6 |
| 5 | Kairos Power | 92.3 |
| 6 | X-energy | 91.0 |
| 7 | Holtec International | 89.7 |
| 8 | Oklo | 88.3 |
| 9 | Westinghouse | 86.9 |
| 10 | Aalo Atomics | 85.4 |
Frequently asked questions
How does GE Vernova Hitachi Nuclear Energy rank on Lister?
GE Vernova Hitachi Nuclear Energy is ranked 1st of 10 in Best Small Modular Reactor Companies (Lister Score 97.2).
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