This residential solar power system in Edmonton contains 41 high-end SunPower modules with an efficiency of a whooping 18%. The solar modules are installed on four sub-arrays around the house, including on its south western wall. The 9.23kW system has a total DC capacity of 9,225 W (9.23 kW) and is expected to generate about 10,000kWh per year, which will offset the … Read More