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Here’s a company pursuing that very idea. https://qz.com/1355672/stacking-concrete-blocks-is-a-surprisingly-efficient-way-to-store-energy/ https://qz.com/13556

• mbreese 7y ago
  Exactly. It’s really the same principle as pumping water uphill except using concrete blocks and a crane. Potential energy is potential energy. I’d just love to see it in action.
• Dylan16807 7y ago
  Ah, if you actually build the structure out of the items you're lifting, then that certainly changes the math. Compared to just lifting with a crane you get a thousand times the capacity at the same infrastructure price.