Energy Vault—Storing Energy by Stacking Concrete Blocks

[johnwalker]

@Gavin

Another issue that often eludes the enthusiasts is that economic large-scale power storage offers a major potential to improve the efficiency of regular nuclear, gas, coal power stations.

This has been almost the entire rationale for pumped storage over its history. Switzerland had very little intermittent energy sources over the period its infrastructure was being built, and pumped storage was a way to optimise use of base load generation and avoid expensive peaking sources.