Solar panels have a effective lifespan of about 25 years. It used to be 20 years, but the newer Chinese panels last even longer.

If the frames are built well and there is quality wiring, you can just replace the panels and get another 25 years.

You may want to add more panels or replace them early, because performance degrades slowly over time. At 20 or 25 years (depending on where you draw the line) they are no longer economical.

As for Lithium Ion battery packs. That is a legitimate concern. Depending on environment, cooling, charge discharge cycles and how full you charge the battery for maximum charge ... you could get between six and ten years out of your battery pack. Less if you regularly charge them really full and discharge the battery completely; that is long distance driving. Don't do that.

Replacement costs of a battery pack for a six or ten year old tesla is more than the resale value of the car.

If you can get your fuel for free (simplest is if you charge at work) then it might still be a worthwhile trade.

I have a friend who has an EV. His wife also has an EV. Both of them charge for free at work. Both drive less than 40 km a day, on average. It works out very well for them. Free fuel, no mechanical services required. There vehicles will just cost them tires and washing until they sell them.

EVs are not for every case, but for their niche they can be outstanding.