A solar inverter, or converter or PV inverter, converts the variable direct current (DC) output of a photovoltaic (PV) 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 network.
DIRECT CURRENT (DC)
An electric current in which electrons flow in one direction only.
ALTERNATING CURRENT (AC)
An electric current that reverses direction at regular intervals.