What is the loading ratio of inverters?

Loading Ratio or DC to AC ratio of an inverter is the ratio of Rated Array Power (DC kWp) to Rated Inverter Output (AC VA). This can be expressed as a percentage value.

For example, if array output of 55kWp DC were connected to a 50kW inverter, the Loading Ratio would be:
(55kWp / 50kW) x 100= 110%.

One can find the Rated Array Power (DC kWp) & Rated Inverter Output (AC VA) of an inverter on the datasheet provided by the inverter manufacturer.

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