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WhileNotLurking t1_iwiazyj wrote

Reply to comment by JackIsBackWithCrack in Italian startup Energy Dome claims its CO2 grid storage batteries are cheaper than lithium-ion, and need no rare minerals, being made from just off-the-shelf steel components, water & CO2. It's opening its first 200 MWh facility in Sardinia in 2023 by lughnasadh

It's important in context as well.

If I have the same energy source and in storage and retrieval I lose 50% then yes that's horrible.

But if I'm grounding wind and solar in the day because I just make so much that I don't need it. And at night burn coal because the sun goes away. Storing energy, even at a 50% loss is a huge win.

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