2,800 sq. ft. single-story private residence in Maryland. This 1974 home has been retrofitted with many energy-saving features. 29 Solar photovoltaic panels (9.135 kWp) coupled with one (1) 13.5 kW Tesla PowerWall 2. Central air / heat via a single Geothermal pump forced-air system w/ variable-speed compressor and air circulation fan. Installed one Level […]