MPPT stands for maximum power point tracking. It is a circuit used in most modern photovoltaic inverters. Its function is to maximize the energy available in the array of connected solar modules at any time during its operation.
A solar module provides limited continuous voltage (DC) and has internal impedances that vary throughout the day, depending mainly on the level of solar irradiance that collides on the module face and the cell temperature.
Simply put, in most applications with two or more strings, two MPPTs are better than just one.
✔ Allows connection of arrangements with different solar azimuth angles
✔ Allows the connection of arrangements with different solar inclination angles
✔ Allows to connect arrangements with strings of different characteristics
✔ Allows connection of more than two strings without combiner
✔ Provides better monitoring granularity.
Considering these points, an inverter with dual-MPPT functionality enables much greater system flexibility, significant cost savings.
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