Eavor Technologies, based in Calgary, develops the Eavor-Loop, a sealed closed-loop geothermal system that does not need a natural reservoir or fracking. Its project in Geretsried, Germany, delivered electricity to the grid on 4 December 2025.
At a glance
| Price from | Custom |
| Best for | Utilities and municipalities in regions without natural geothermal reservoirs |
From Eavor Technologies's own website.
What stands out
- Works without natural water reservoirs
- First closed-loop system to deliver grid power
Worth knowing
- Early output below planned site capacity
- First commercial site still ramping up
How it ranks
Eavor Technologies is ranked 3rd of 10 in Best Geothermal Energy Companies (Lister Score 94.9).
#3 in Best Geothermal Energy Companies · Lister Score 94.9
Eavor's Geretsried project was awarded a 91.6 million euro grant from the EU Innovation Fund..
| Rank | Best Geothermal Energy Companies | Score |
|---|---|---|
| 1 | Fervo Energy | 97.5 |
| 2 | Ormat Technologies | 96.2 |
| 3 | Eavor Technologies | 94.9 |
| 4 | Quaise Energy | 93.6 |
| 5 | Sage Geosystems | 92.3 |
| 6 | Mazama Energy | 91.0 |
| 7 | XGS Energy | 89.6 |
| 8 | Zanskar | 88.2 |
| 9 | Geothermal Engineering Ltd (GEL) | 86.8 |
| 10 | Rodatherm Energy | 85.4 |
Frequently asked questions
How does Eavor Technologies rank on Lister?
Eavor Technologies is ranked 3rd of 10 in Best Geothermal Energy Companies (Lister Score 94.9).
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