>>1534027Producing the producers takes energy and takes time. So much in fact, some claim we're not going to do that before running out of economical fossil fuels, and that's gonna be a way bigger problem than a bit of global warming. Maybe in the far future we're gonna cover all our roofs in solar cells and spend energy like crazy, but that's not anywhere close. Oh, and we've yet to solve the problem of volatility.
>many companies are looking for alternativesI'll believe it when I see it. The examples there are btw. about improving lithium batteries (good idea, not going to cut it for electric cars) and some kind of salt water thing - which might be useful to buffer the volatility of renewable energies, but will never power cars. The energy density just isn't there, that's physics.