It is a photovoltaic power generation facility that is constructed and operated at or near the user's site, and is characterized by self-consumption on the user's side, excess power being connected to the Internet, and balanced adjustment in the distribution network system.

The advantages of installing a solar power generation system for industrial and commercial users include: large industrial and commercial electricity consumption, high electricity price, large proportion of self-generated and self-consumption, short payback period, and high yield;

Small home solar power system is composed of solar module, solar controller, battery (group). If the output power is AC 220V or 110V, an inverter is also required.