What is the Open-Circuit Voltage (VOC) of a Monocrystalline Solar Panel and Why Does it Matter for System Sizing?
Open-circuit voltage, or VOC, is the maximum voltage a solar panel produces when no load is connected. VOC is critical for correctly sizing your solar system and preventing damage to your equipment. A common mistake is ignoring how cold weather raises VOC, which can blow out your charge controller. For example, a panel rated at … Read more