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A comment on Gravitricity – Fast, long-life energy storage. Parent comment

Re:Gravitricity – Fast, long-life energy storage by tomp on Wednesday September 09, 2020 @04:47AM (#24418823)
Both solutions present heavy machinery, presumably aimed at big industrial installations.

How about home use? Could it be used small-scale, e.g. as an alternative to Tesla's PowerPack? I've long been curious about distributed energy solutions, from heating (e.g. cogeneration / CHP, heat pumps, geothermal energy, solar+battery for off-grid energy), could this be a low-cost, low-tech, low-maintenance, low-risk alternative to batteries?

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Re:Gravitricity – Fast, long-life energy storage by vinceguidry on Wednesday September 09, 2020 @07:11AM (#24419721)
At small scales, the setup costs world dwarf those of lithium by an order of magnitude. You can have a powerwall shipped to you and a local electrician install it. This, you’d have to have an engineering crew dig a shaft, unless of course you happen to own an old mine.
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