Publicly traded energy storage company
Appears in 1 story · Last updated May 31, 2026
As of May 2026: Operating world's only commercial gravity battery; expanding into mine-based systems
The world has roughly 500,000 abandoned mine shafts. A small group of engineering startups believes these holes could solve renewable energy's biggest problem: what happens when the sun sets and the wind dies.
Updated May 30
No stories match your search
Try a different keyword
How would you like to describe your experience with the app today?
