A solar inverter is the brain for a solar power plant. An inverter’s core function is to convert Direct Current (DC) generated by the solar PV panels into Alternating Current (AC) required by our electrical loads. In addition, it integrates solar with other sources such as grid power or backup diesel generators. It is also known as a Power Conditioning Unit (PCU).
Inverter/PCU – Definition, Glossary, Details – Solar Mangoadmin