The Sunwaytech String Inverter 3.6 kW 1 phase, also called an on-grid inverter, is an essential part of any solar power system. This inverter converts the direct current (DC) generated by the solar panels into alternating current (AC) suitable for use in your home or business and for feed-in to the grid. Regular inverters are the ideal choice if you do not want to add battery storage and only want to generate solar energy for direct use or to feed back to the grid. Regular inverters are also an excellent solution if you want to replace an existing inverter.