Retroplayer:
So what about simply trickle charging a battery with the solar instead? Unless the demand for the motor is very high, that may be an option.And is a 12V/1A motor really necessary for your application? Is it speed or torque that you need from the motor?
Oh, most likely I do not need that much. I was asking more for the sake of self education. I watched recently some YouTube videos about energy harvesting, so I though that was an interesting angle for many new projects.
On the end of the day, the old Mars Rover, was using solar panels to store power in a battery, not capacitors.