Type One Energy
Stellarator pilot plant with the Tennessee Valley Authority
Ranked #6 in Best Fusion Energy Companies.
Type One Energy, based in Knoxville, Tennessee, is designing Infinity Two, a 350 MWe stellarator pilot plant planned with the Tennessee Valley Authority at the former Bull Run Fossil Plant site.
At a glance
| Price from | Custom |
| Best for | Utilities looking at fusion on retired fossil plant sites |
From Type One Energy's own website.
What stands out
- Utility partner and an existing site
- Reuses retired power plant infrastructure
Worth knowing
- Pilot plant still years away
- Less funding than the largest rivals
How it ranks
Type One Energy is ranked 6th of 10 in Best Fusion Energy Companies (Lister Score 90.7).
#6 in Best Fusion Energy Companies · Lister Score 90.7
TVA issued a letter of intent to Type One Energy in September 2025 for potential deployment of its stellarator at Bull Run..
| Rank | Best Fusion Energy Companies | Score |
|---|---|---|
| 1 | Commonwealth Fusion Systems | 97.0 |
| 2 | Helion Energy | 95.8 |
| 3 | TAE Technologies | 94.5 |
| 4 | Pacific Fusion | 93.2 |
| 5 | Proxima Fusion | 92.0 |
| 6 | Type One Energy | 90.7 |
| 7 | Tokamak Energy | 89.4 |
| 8 | General Fusion | 88.1 |
| 9 | Zap Energy | 86.8 |
| 10 | Thea Energy | 85.4 |
Frequently asked questions
How does Type One Energy rank on Lister?
Type One Energy is ranked 6th of 10 in Best Fusion Energy Companies (Lister Score 90.7).
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