Tedx wrote:I did ask the question some years agon about wind turbines lifting internal weights, but the answer at the time said is wasn't feasible. I guess lifting a huge weight high up would seriously comprimise the tower - unless it was massively engineered to cope. Still, the excess energy can be stored elsewhere (weights, water, hydrogen etc), which is what they're working on, I'm sure.
A gravity battery. I do think it should be called a gravity cell, though, unless more than one are connected together. A single cell does not make a battery any more than does a single gun.
A weight inside the turbine tower would not be sufficient. You would need a system with much more capacity such as this (the article is paywalled but you can watch the video),
https://www.thetimes.co.uk/article/giant-battery-uses-gravity-to-convert-stored-energy-into-electricity-hq3r89b9r
And you thought that wind turbines were eyesores...
Julian F. G. W.