Engineers develop a 96% efficient process to make formate fuel from CO2
Engineers develop a 96% efficient process to make formate fuel from CO2

news.mit.edu
Engineers develop an efficient process to make fuel from carbon dioxide

There is a discussion on Hacker News, but feel free to comment here as well.
Which is great but isn't it more effective to just use batteries? If we have renewables for power ?
If we mandate that govts or fuck them. People take control of power companies. Nationalize solar and pit solar on every single house plus every available roof. Enough power to keep cars charged up.
Wouldn't that be better than the cost and storage of whatever this is ?