We just finished installing this new solar energy system for a customer near Jeffesonville, Ohio. We love specs (and just assume you do to) so here they are: The system has 26 320 watt Hanwha Q Cells modules, an 8.32 kW solar array capable of producing 11,710 kWh annually. The system is battery ready for when the customer is ready for batteries. OGW Residential Solar.