Translations:Power factor/3/en

The power factor of loads becomes important when sizing and selecting an off-grid inverter. A load with a power factor of less than 1 will require that the inverter supply current that exceeds the power rating of the appliance in order for it to work properly. This current is not included in the power rating of the appliance as it is not consumed by the load and is returned to the source. Power factor is therefore only factored into sizing the inverter, but is not relevant when sizing the PV source or energy storage system.