Could potentially make sense. A long time ago saw a programme on tomorrow’s world (BBC) where a car had a similar setup burn fuel close to solar panels to generate electricity and use it to power the car. we must be close to making something like this. It can be used in the home as well as in cars. They used methane. This is is some sort of sodium fuel mixure and looks promising.
Power of the sun in your car bonnet or something similar
The technology is thermo photo voltaic (TPV).
The video below also uses and manufactures TPV cells