Meaning
Surcharge applied by electrical utilities when a facility’s power factor falls below a specified efficiency threshold. Industrial motors and transformers often create a magnetic field that draws current without performing useful work, leading to a reactive power penalty on the monthly invoice. This fee compensates the utility for the additional capacity they must maintain to support the inefficient load.
This fee defines the financial boundary for organizations that fail to correct their electrical phase alignment.
Phase Alignment
Inductive loads cause the voltage and current waves to shift out of sync. When a reactive power penalty appears, it indicates that the plant is pulling more kilovolt-amps than the actual kilowatts it consumes. Installing capacitor banks or synchronous motors is the standard way to pull these waves back into alignment.
Economic Impact
Persistent fines for poor power factor significantly increase the operating cost of heavy machinery. A reactive power penalty often acts as the primary justification for investing in power quality hardware. If the demonstrated rate of savings from a new capacitor bank exceeds the annual penalties, the project receives immediate funding.
System Capacity
Excess reactive flow clogs the internal distribution wires and generates unnecessary heat. Reducing the reactive power penalty frees up space in the existing transformers for new production equipment. This capability allows a facility to expand its output without the need for an expensive upgrade to the incoming utility service.
