There isn't enough surface area on vehicles for that to happen. The world installed about 117 gigawatts (peak) of solar PV last year [1]. If the average panel

There isn't enough surface area on vehicles for that to happen. The world installed about 117 gigawatts (peak) of solar PV last year [1]. If the average panel is 17% efficient that's more than 680 million square meters of panels being manufactured per year. World motor vehicle production in 2018 was 96 million [2]. To put more solar panels on vehicles than we already put in fields and on rooftops, the average vehicle would need more than 7 square meters of surface covered with panels. That's neglecting that most vehicles are still internal combustion vehicles that couldn't do much with the electricity those panels would generate. [1] https://en.wikipedia.org/wiki/Growth_of_photovoltaics https://en.wikipedia.org/wiki/Growth_of_photovoltaics [2] https://en.wikipedia.org/wiki/List_of_countries_by_motor_vehicle_production https://en.wikipedia.org/wiki/List_of_countries_by_motor_veh...