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In a solar panel installation, a string inverter is a device that is used to convert the direct current (DC) electricity generated by a solar panel array into alternating current (AC) electricity that can be used by household appliances or fed back into the grid.
A solar panel string inverter is typically used in a solar panel installation that consists of multiple solar panels wired together in a series, or "string". The inverter takes the DC electricity generated by the solar panels and converts it into AC electricity, which can then be used by the home or business where the system is installed.
The solar panel string inverter is responsible for maximizing the power output of the solar panels and ensuring that the AC electricity produced by the system is synchronized with the grid. The inverter also performs a number of safety functions, such as shutting down the system in the event of a fault or overload.
In summary, the main use of a string inverter in a solar panel installation, is to convert the DC electricity generated by a solar panel array into usable AC electricity for home or business use, while also ensuring the safety and efficiency of the system.