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Sp3llbind3r t1_iwikl08 wrote

Reply to comment by palmej2 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

Yeah, but if you can store solar or wind power that nobody can use at that moment it‘s not a 23% loss but a 77% win. If that power replaces fossil fuel power you would have to produce at night or in winter, it would be a huge win.

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palmej2 t1_iwipxcx wrote

Yes, agree. But for a system such as this I think that would be common against all alternatives, the difference might be that the CO2 could allow for more capacity, or a reduced initial cost (making it more widely feasible) and potentially having additional future scalability benefits.

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