All my coop needs are met with a solar panel I bought at harbor freight a few car battery's I got at the junk yard. And a 12 volt inverter to change over from 12 to 110v. All total I invested under 200$ and I'm green. Water is soon to be run in there when I get my brother Inlaw to dig me a trench to run it to my coop. I also got led solar strip lights to give off enough light I can do a head count each night.