It still can't come from solar or wind. Even if we waved a magic wand and had infinite and free energy storage, scaling solar and wind for sustained base load support is still a pipe dream. We are struggling to recycle the minuscule waste stream for solar and wind right now. Heck for wind turbine blades we aren't even really doing anything meaningful - meanwhile they are stacking up.

Without nuclear we are not getting off of fossil fuels - period.