Except then you consider the alternatives :-/ photon to electron in space to photon' to electron on ground ≃ photon to electron on ground photon to electron (

Except then you consider the alternatives :-/ photon to electron in space to photon' to electron on ground ≃ photon to electron on ground photon to electron (on ground) to battery (filling station) to electron to battery (car) to electron to kinematics VS raw oil (limited on this very planet) to petrol to kinematics Also not considering resistance loss and petrol transportation. A little bit more complicated :)