Swiss startup Energy Vault is stacking concrete blocks to store energy — Quartz

Swiss-based Energy Vault provides an alternative to pumped-hydro energy storage by using concrete blocks and cranes instead of water and dams. The Energy Vault concept contends that because concrete is denser than water, lifting a block of concrete requires more energy and can store more energy than a water tank of the same size.

Source: Swiss startup Energy Vault is stacking concrete blocks to store energy — Quartz

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