The following submission statement was provided by /u/lughnasadh:

Submission Statement

There are bold claims about cost, but the really interesting thing about Energy Dome is its potential speed of deployment. As it uses existing common off-the-shelf materials it can overcome many of the supply chain bottlenecks that bedevil other grid storage battery solutions.

More details are here.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/yw53j1/italian_startup_energy_dome_claims_its_co2_grid/iwhjofu/