You don’t need power storage for months, if you combine different renewable sources and have power lines connecting different areas. Wind and solar complement each other usually.
You need to be able to bridge a few weeks though, because there will be gaps, but you don’t need to store solar power for half a year to make it. It is still a big issue, but no need to exaggerate.
Oh wow. After my last trip that was supposed to take like 9 hours and ended up more like 12, I decided to never do that to myself ever again. But I guess if you have multiple drivers that can share the burden, such along day on the road is still an option.