Inverter type

Capacity

Technique

Central inverter

250 kW to 01.25 MW

It is commonly used in MW scale photovoltaic power plants in India. A single inverter controls the major portion of the plants.

String inverter

05 to 20 kW

It is used in smaller photovoltaic installations including rooftop systems, and some MW scale plants in India. A single inverter controls a single or limited string of modules. They offer multiple controls at a more basic level compared to central inverters, hence, reducing module mismatch losses and simplifying plant maintenance. They are typically mounted outdoors.

Domestic inverter

01 to 05 kW

It is typically used for domestic rooftop applications. That May be in a grid-tied or stand-alone mode.

Micro inverter

100 to 400 W

It uses novel technology with controls the output of each module individually converting it into AC. It is currently used in pilot small-scale installations only, but have a promising roadmap for wide applications.