One major project done! The solar panels are on. Our journey to making the Sprinter off the grid ready started with the purchase of a Renogy 300 watt monocrystalline solar kit, which included the charge controller. Shortly thereafter, we had a week off from work and decided a trip to California to visit Justin's parents would be a good idea because a) we like his parents b) his father is gifted in all things mechanical and has a large shop with lots of tools.