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[–]ActuallyNot 3 insightful - 1 fun3 insightful - 0 fun4 insightful - 1 fun -  (0 children)

the world's largest battery currently in operation is the Hornsdale Power Reserve in South Australia, which has a capacity of 150 megawatt-hours (MWh).

Good ole chat-GPT, huh?

Dalian has a 400 MWh battery, California has a 400 MWh battery, Florida has a 900 MWh one, Cali has a 3,320 MWh one scheduled to go online this year.

The millisecond response time of a battery is handy for stabilising the grid, but for storage of more than hours, pumped hydro still looks like a decent solution.