nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqmpwksahqzlafhsc4457qxc48u0x4jfpdxj4rqsgez9dljd9kdt6qhky54t (nprofile…y54t) I was interested to do a back-of-the-envelope estimate.
Say we make the weights out of something relatively cheap like concrete. 1 cubic meter of GP concrete weighs about 2.3 tonnes. To lift 1kg up 1m takes 9.8 Joules, so to lift 2,300kg up two storeys (say, 10m) is 225,553J which looks like a lot, but works out to 62 Watt hours.
So it would take a lump of concrete the size of a bar fridge being hoisted a couple of storeys to run, say a bar fridge for an hour.
I think that might be why it's not being investigated as an energy storage medium for domestic use.
npub1yv…d6nwf
2024-12-02 04:58:02
in reply to nevent1q…85lh
Author Public Key
npub1yv3k38x0f477jmpuet9rj0lwnhl8r4q7kx4ssygyc499p5fsvp0qsd6nwfPublished at
2024-12-02 04:58:02Event JSON
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