APsystems’ microinverter and Huawei’s string inverters are two popular brands for solar grid tie systems.

In general, for a grid-tie system, we need microinverter, optimizer or string inverter; for a off-grid system, we need charge controller, battery and DC-AC inverter.

The micro inverter is a great solution for residential or 30-50KW less  commercial projects. Above all, it supports module level optimization, which can help to produce 10-15% more power.

The string inverter is suitable for large commercial projects, or even the power plant projects. Most noteworthy, Huawei, they are not only famous on their cell phone and communication network, but also the No. 1 string inverter supplier all over the world.