Situated on 49+ rolling acres, this custom home built on the underground side of a hill is engineered to be energy efficient with the option to live off-grid. Sun is the primary heat source plus contra-flow masonry wood-burning heater with bake oven, and wood stove in the bedroom. A PV array and wind turbine supply power for the batteries, with excess power net-metered to the utility. Natural gas from and on-site well provides energy for cooking, refrigeration, tankless water heater. An enthalpic energy recovery ventilator provides the home with fresh air. Additional buildings include a heated finished cottage/bunkhouse, 30x24 heated garage,50x30 2-story Quonset, w/oversized 2 car garage, 2nd floor loft and commercial grade heated workshop. Mostly wooded, a hidden pond attracts area wildlife.