String system solar refers to solar energy systems in which solar panels are connected in series to create a string of panels that all feed into a single inverter. The inverter then converts the direct current (DC) electricity produced by the panels into usable alternating current (AC) electricity that can be used to power homes or businesses.
In a string system, the performance of the entire system is limited by the output of the weakest panel. This means that shading or other external factors that affect the output of a single panel can significantly reduce the overall efficiency and output of the entire system.
Generally, String systems are less expensive than other types of solar PV systems, making them a popular choice for residential and small commercial applications. They are also relatively simple to install and maintain, which can further reduce costs.