In the same way, this PV system applies to DC power system, but comparatively, this kind of solar PV system usually consumes more power, in order to guarantee a stable power supply which can provide reliable power to loads, its system scale is also relatively larger, and also need to be equipped with larger PV module array and larger solar battery group, it is commonly used as the power supply for communication, telemetry, and monitoring equipment, it also provides centralized power supply for rural area, in addition, it is applied to fairway buoys, beacons, and street lamps.


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