Keep in mind that for a wired camera, you will need some kind of battery to charge up and store power. It will need to be a big enough battery to run all night and run the next day if it is cloudy. You also need a big enough solar panel to collect more power than the camera uses so that it has enough to charge the battery to store enough power for the camera to keep running when there is no sun.
Here are some of my favorite threads related to this which you might want to look through where people have done solar panel solutions for wired cameras just like you are trying to do. They are moderately difficult to implement, but definitely possible: