I will be starting on our coop as soon as the weather improves. I debated on what to do for lighting, reading about the solar stuff, etc. I finally decided rather than sinking money into solar or running extension cords on top the ground, I'd just run electric to it. I've priced everything and it will run me about $135 to get electric from one of the house panels to the coop which will be about 90 feet away, including three outlets, a shop light on the ceiling and switch for the light. I plan to do the work myself with a little help from my father hooking it up to the breaker box. Now, in addition to lighting, I'll be able to use a heater in the waterer to keep their water from freezing during the colder months. If your coop isn't an unreasonable distance from your home, you might want to look into running electric to it.