Yeah, cheap Nuclear/NatGas/Coal power kinda sucks the fun out of solar panels. But if you add in the "Cool" factor of a golf cart as a "perpetual motion machine", it makes solar costs, um, seem worth it.
$600 for 200W system...Eh.
The new Kia Optima Hybrid has an optional solar panel roof that can extend the range 4 miles per day. $1100 option for perhaps 1000 solar-power miles per year in Florida. For what TVGC wants for a gussied-up Yamaha, the Kia seems reasonable
Let’s Drive the ALL NEW 2021 Kia Optima with Solar Roof. Is it better than Hyundai Sonata Hybrid? - YouTube