In 2 years we're moving back to our farm and building 3 houses... plan to incorporate wind, solar, hydraulic, heat pump, super-insulation, earth bermed, etc. We're doing the planning now. If everything works as planned we'll hopefully be pretty close to self-suffcient. I already have a few solar projects, cabin, travel-trailer, etc, and they work great. Been doing this for quite a few years now.