Tuesday, SolarCity produced greater than 10GWh of solar electricity via its customer base. The summer day peaks around June 20 – meaning we’ll probably see more records broken. As the SolarCity Gigafactory scales to 1GW of solar modules at 22% efficiency there will be a potential to install 37% more solar power per rooftop. With the US total solar capacity installed being around 27GW at the end of 2015, that’d mean SolarCity owns about 7.5% of the nations stock. One Gigafactory’s annual production would take a little over 2 years to replace the current SolarCity stock.