A research team from the Ulsan National Institute of Science and Technology (UNIST) in South Korea has developed transparent solar cell technology capable of directly charging a battery from a glass surface. This innovation offers numerous applications, allowing for direct energy generation from sources like smartphone screens, car windows, and building facades.
False comparison. Smart phones are volume constrained, cars are weight constrained.
sure, the 6 ton object is “weight constrained”
Go read up on CAFE regulations and then tell me weight doesn’t matter.