Exterior, Metal Roof Material, Metal Siding Material, House Building Type, Wood Siding Material, Gable RoofLine, Shed RoofLine, and Saltbox RoofLine An 8-kW solar array powers the majority of the home's annual energy use, while a five-ton geothermal system provides mechanical heating and cooling. A 30,000-gallon rainwater collection system feeds the home with 200 gallons of purified water daily.

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An 8-kW solar array powers the majority of the home's annual energy use, while a five-ton geothermal system provides mechanical heating and cooling. A 30,000-gallon rainwater collection system feeds the home with 200 gallons of purified water daily.