The array's direct current is approximately 1000 VDC. P20 – Diagram showing a photovoltaic array consisting of several groups An alternate solution to DC system is to closely link the inverter to the PV module, in that case the PV module become an AC power source. PV array design overview covering array voltage and current, design correction factors, cable checks and UK G98/G99 grid connection requirements. Photovoltaic (PV) systems convert sunlight directly into electricity using semiconductor PV cells. At the same time, it controls and monitors the entire plant. This way, it ensures on the one hand that the PV modules always operate. A solar inverter or photovoltaic (PV) inverter is a type of power inverter which converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical. During voltage dips, especially complete grid failures, all PV and battery inverters connected to the grid may generate currents that are slightly above the maximum current in normal operating conditions. It is used for small PV arrays with peak power of up to 3 kWp depending on the modules deployed.