Gravitricity Sets Sights On South Africa To Test Green Energy Tech
The title of this post, is the same as that of this article on ESI Africa, which describes itself as Africa’s Power Journal.
This is the first two paragraphs.
Disused mine shafts in South Africa have been identified as an ideal location to test UK-based energy start-up Gravitricity’s green energy technology.
The company announced plans to transform disused mine shafts into hi-tech green energy generation facilities through a system that uses gravity and massive weights.
This is surely a classic fit, as Africa has plenty of sun and some of the mine shafts in South Africa, like the TauTona mine are getting towards two miles deep.
A weight of 1,000 tonnes in a two mile deep shaft would store nearly nine MWh. By comparison, Dinorwig Power Station or Electric Mountain, has a capacity of 500 MWh.
But Electric Mountain was built in the 1970s, cost £425 million and took ten years to construct.
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