So solar needs to be buffed back to absurdity because you chose a power source dependant on good weather, in an area that regularly gets bad weather? Cataclysm doesn’t take place in an area of the world that has months of sunshine, but apparently because the game isn’t easy enough unless a couple solar panels can power an entire nation come rain, snow, or the apocalypse?
They’re fine, they don’t need to be stronger, they just need to have a greater surface area on the vehicles they intend to power.

First image that comes up, it appears to be a smart car, by CDDA’s standards, how many panels does that look to have?