drgrieve
drgrieve t1_iwid6ks wrote
Reply to comment by AmiAlter 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
Just to be contraion, but when the spot price of electricity is negative (which happens often in Australia) it actually pays to be inefficient.
drgrieve t1_iwjvhdv wrote
Reply to comment by AmiAlter 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
Yes. The coal plants fight wind and solar for the right to not turn off and make it up for when the sun goes down. However they can't pay rooftop to turn off, so they are month by month losing the war. In Aus we install 200MW every month of rooftop. If everyone had rooftop as cheap as us they could do the same.