Will the inverter stop if the photovoltaic output power is not enough

The inverter will automatically switch off  when there is no sufficient sunlight for the panels to create the electricity needed to operate.. The inverter will automatically switch off  when there is no sufficient sunlight for the panels to create the electricity needed to operate.. If your inverter isn't working, you won't be able to use the electricity from your solar panels, so it's important to get it fixed quickly. [pdf]
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How much tilt should photovoltaic panels have to be to be effective

To optimize performance, tilt your panels at an angle that is 10-15 degrees less than your latitude. For example, if you live at a latitude of 40 degrees, set your panels at about 25-30 degrees. [pdf]