This plus energy re-build north of Boulder, Colorado creates enough energy to power the all electric home and allow the family to drive electrically for free. Imported European windows and super insulated air-tight assemblies reduce the heating and cooling loads which are then easily met with a reduced geothermal mechanical system providing both space heating and cooling as well as domestic hot water. Electric loads are offset by 10kW photovoltaic system. The budget conscious design utilized the existing foundation, but sought to expand views to both the lake and southern sunlight. Convenient main floor living, plus guest suite below and lofted family room above, creates flexible living options for generational living.