# Switzerland Is Building One Of History's Most Powerful Batteries 100 Feet Underground

> There's a massive 88-foot-deep hole in Switzerland that will house the world's most powerful redox flow battery.

- **Source:** [SlashGear](https://www.slashgear.com/2191963/switzerland-flexbase-battery-underground-powerful/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6a2ad7adcb58b36bb74213d7)
- **Published:** 2026-06-11
- **Category:** Science
- **Tags:** #battery #feet #powerful #switzerland #batteries #building #history #power
- **Canonical:** http://localhost:4321/a/6a2ad7adcb58b36bb74213d7

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._