> Starting with CO2 sounds like it would require an obscene amount of electricity though. It could still be worth it, depending on how/when it was made and how

> Starting with CO2 sounds like it would require an obscene amount of electricity though. It could still be worth it, depending on how/when it was made and how it interacted with the grid. There's an increasing problem right now of too much solar supply during the day and not enough power storage; projects like this could be used to soak up excess power and it would still come out carbon-neutral.