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Re:Gravity Energy Storage: Alternative to batteries for grid... by mclightning on Tuesday January 05, 2021 @08:50PM (#25653871)
There is already a very successful company here in Sweden, that is doing exactly that.

They do even much more than what you describe like providing electricity realtime from the best supplier depending on various factors like price and climate friendliness in a given time.

https://tibber.com/se/smart-elavtal

Re:Gravity Energy Storage: Alternative to batteries for grid... by maxekman on Wednesday January 06, 2021 @04:09AM (#25655960)
Another cool thing with Tibber is that they provide APIs to access your usage etc. THAT is something I would like to see from all general companies.

https://developer.tibber.com/docs/overview

Re:Gravity Energy Storage: Alternative to batteries for grid... by WalterBright on Tuesday January 05, 2021 @09:03PM (#25653948)
> climate friendliness

That's good. This can be objectively determined with things like a tax on emitted pollution, which goes into the price of electricity provided, and then the utility can simply buy the cheapest.