Living off grid in an RV, it is possible!

     Not long ago I was out and about, andI happened to see this amazing example of off grid living. The owners of this RV had hooked up several minimally sized solar panels, presumably to provide for or supplement their electricity needs. 
     Alas, I did not have time to as them how their setup works. I did find out that the RV park where I found this is one of the most reasonable around here, supposedly about $3,500 per year. That price includes water and sewer, use of the amenities which include a pool. Barrington Hills.