Texas Solar Guys just wrapped up a 982 panel, 579.38 kW roof mounted system in San Antonio with Q-Cell 590watt solar panels and CPS String inverters. This system was installed across 8 different roof surfaces and is estimated to produce 811,000 kWh in its first year. The project took from start to finish 4 months, with some delays due to a change in interconnection which required trenching.