A company aiming to use old mine shafts as batteries to store renewable energy is to build a demonstration project showcasing its technology in Scotland.
Gravitricity believes that it can use large weights on cables attached to winches on the surface to help to compensate for the intermittent nature of wind farms.
The company estimates that the cost of its technology would be lower than the large-scale lithium ion battery deployment being considered by many renewable energy producers.
There’s more about this in the following article https://karmaimpact.com/gravity-not-batteries-might-be-solar-and-wind-energy-storage-solution/
Graviticity website – https://www.gravitricity.com/
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