How To Use String Inverter For Wiring Solar Panels?

String inverters can be used to interconnect solar panels. To operate efficiently, these inverters require a certain amount of voltage and current from the solar array. They are also equipped with MPP trackers that alter voltage and current to amplify the power produced. When using string inverters, these rated values need to be considered. You need to ensure that the required voltage and current are adequately supplied by the solar panels.

Typically, for crystalline solar panels the voltage requirement is around 40 volts and for string inverters the voltage window is 300-500 volts. This allows you to connect around 8-12 panels in series. However, if you need to connect more than 12 panels in an array, you can design two strings consisting of 8 panels each plus two panels connected in parallel.