Yes, top hinged windows for light in winter and ventilation in summer.Your coop looks great - I would add a few more big windows so the chickens have a lot of light in there. In fact, removable glass for the summer.
I'd be careful with solar lights,.I plan to add some solar shed lights before winter hits, but they won't be on all the time.
The kind that charge up during the day and come on at dusk until they run out of juice?