Thus the nameplate rating of the inverter is its capacity to process the power of the PV array. For example, a 7. 6 kW inverter can produce an output of up to 7. . For a PV system, the rated capacity in the denominator is either reported in terms of the aggregated capacity of (1) all its modules or (2) all its inverters. PV modules are rated using standard test conditions and produce direct current (DC) energy; inverters convert DC energy/power to alternating. . PV capacity is defined by the system's Nameplate Rating, which is the theoretical maximum instantaneous power output under perfectly standardized laboratory conditions. This standardized testing environment is known as Standard Test Conditions (STC), which allows for independent comparison of. . For example a 9 kW DC PV array is rated to have the capacity to produce 9 kW of power at standard testing conditions (STC). STC is 1,000 W/m^2 and 25°C, and is more ideal than typical real world conditions. Thus the solar system will only produce at the full capacity of 9 kW on rare occasions, if. . The capacity of an inverter is the maximum power output it can handle, usually measured in kilowatts (kW) or kilovolt-amperes (kVA). . An inverter is required to convert DC to AC. The inverter's rated capacity, usually in kilowatts (kW), determines how much AC power it can deliver continuously. 6 kW AC or 31. 6 amps at 240v AC. An Enphase IQ-8+ microinverter has a power. .