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Re:Wind and solar are cheaper than thought, admits UK govern... by twic on Thursday August 27, 2020 @04:56PM (#24298575)
I have heard quite a lot of skepticism about this. For example:

https://www.youtube.com/watch?v=NIhCuzxNvv0

Re:Wind and solar are cheaper than thought, admits UK govern... by imtringued on Friday August 28, 2020 @07:09AM (#24303514)
Well, all I have to say is that this is the first practical gravity battery that isn't total garbage. In theory you can scale it up and eventually have something worthwhile...