Helion Energy
Pulsed fusion plant under construction for Microsoft
Ranked #2 in Best Fusion Energy Companies.
Helion Energy, based in Everett, Washington, uses a pulsed, field-reversed configuration approach and began building Orion, its first commercial fusion plant, in Malaga, Washington, in 2025.
At a glance
| Price from | Custom |
| Best for | Large power buyers interested in early fusion electricity |
From Helion Energy's own website.
What stands out
- First fusion power purchase agreement
- Commercial plant site under construction
Worth knowing
- Ambitious timeline still unproven
- Approach differs from mainstream tokamak research
How it ranks
Helion Energy is ranked 2nd of 10 in Best Fusion Energy Companies (Lister Score 95.8).
#2 in Best Fusion Energy Companies · Lister Score 95.8
Helion signed a power purchase agreement with Microsoft in May 2023 to deliver at least 50 MW of fusion electricity, starting in 2028..
| 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 Helion Energy rank on Lister?
Helion Energy is ranked 2nd of 10 in Best Fusion Energy Companies (Lister Score 95.8).
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