The ability of an inverter to accurately convert DC to AC, operate within specified voltage and current limits, and incorporate safety and control features such as MPPT, transfer switches, and ground fault protec.
[pdf] Maximum system voltage is the maximum voltage at which your solar system array should be operated. This metric is crucial when you connect an inverter or controller to your array. So, why is this important.
[pdf] For a 24 volt system the panel at max power rating needs to be 32 to 36 volts. Roughly 16 to 18 volts for every 12 volts of battery. However that rule only applies if you are using a standard PWM or shunt regulator. Using that type of regulator you will loose 30% minimum of the power from the panels.
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