Pre-retrofit, this home in the Woodbine neighbourhood of Calgary, Alberta, used an estimated 81 per cent more energy than a typical house.
Solar Homes Inc. worked with the owners to design a retrofit to make the home net-zero. By increasing the home's airtightness, adding more insulation to the exteriorwalls and attic, and upgrading windows and mechanical system, the home's energy needs dropped from 203 GJ a year to just 53.
After installing 14.0 KW of Solar, the home is now net-zero.
