Answer:

A solar string, or solar panel string, is a group of solar panels connected in series.

Solar panels are typically connected in series to achieve a higher voltage, which in turn reduces cable losses. An SSO (Solar String Optimizer) has a minimum starting voltage of 100 V, which means that it practically always requires at least 3 series-connected panels to reach a sufficient voltage for the SSO to start.

Example:

In series connection, the voltage increases while the current remains constant.

If we connect 5 panels with an Imp (maximum power current) of 11 Amps and a Vmp (maximum power voltage) of 37 Volts in series, the solar panel string will have a current of 11 A and a voltage of 185 V.

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