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There are no such technologies that would allow to store even a 1 TWh of electric energy.
You believed Greenpeace when they said "energy storage is just behind the corner, let's shut down all nuclear" in 2010, and that's precisely why Germany ends up with new coal & fossil gas plants while having 60% renewables in the energy mix and CO2 emissions 2x higher than Ukraine with 20% renewables.
Incidentally, Greenpeace Energy also sells fossil gas 🤔