In a 3 phase supply, kW consumed is (volts x amps x 1.73 x power factor) / 1000. The Electricity company supply you volts x amps and they have to supply extra to make up for the loss caused by poor power factor.
Prime Technologies can carry out power quality analysis at your facility to determine your system loads and power factor at any given time.
When the power factor falls below a set figure, the electricity supply companies charge a premium on the kW being consumed, or, charge for the whole supply as kVA.