Peak Energy, founded in 2023, makes fully passive sodium-ion energy storage systems for utilities, power producers and AI data centres, and plans a factory in Sacramento. It announced an oversubscribed $108 million Series B on October 21, 2026.
At a glance
| Price from | Custom |
| Best for | Utilities and power producers adding grid storage |
From Peak Energy's own website.
What stands out
- No active cooling needed
- Large contracted volumes for its age
Worth knowing
- US factory not yet producing
- Very young company
How it ranks
Peak Energy is ranked 5th of 10 in Best Battery Startups (Lister Score 91.8).
#5 in Best Battery Startups · Lister Score 91.8
Peak Energy says it has more than 6 GWh contracted through 2030, including a 4.75 GWh contract with Jupiter Power..
| Rank | Best Battery Startups | Score |
|---|---|---|
| 1 | Form Energy | 97.0 |
| 2 | Group14 Technologies | 95.7 |
| 3 | Lyten | 94.4 |
| 4 | Verkor | 93.1 |
| 5 | Peak Energy | 91.8 |
| 6 | Nyobolt | 90.5 |
| 7 | EnerVenue | 89.2 |
| 8 | Base Power | 87.9 |
| 9 | Alsym Energy | 86.6 |
| 10 | Echion Technologies | 85.3 |
Frequently asked questions
How does Peak Energy rank on Lister?
Peak Energy is ranked 5th of 10 in Best Battery Startups (Lister Score 91.8).
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