The Power Factor Calculator can be used to calculate what your power factor correction requirements are, and how your business can benefit from optimal energy efficiency and savings on electricity costs.

Some of the common enquiries that we regularly receive include:

1. How to calculate power factor?
2. What equipment is required to calculate power factor?
3. How to calculate potential energy savings after installing Power Factor Correction equipment?

Our response

The best source of information on your business’ energy consumption is on your monthly utility bill or any other local monitoring equipment. Additionally, to track any particular trend(s) is to do cumulative calculation of each month’s data, over a 12 month period, to determine the maximum kVAR required.

There are two scenarios in which you can perform this calculation. You can calculate your power factor requirements by using one of the scenarios below. Please fill in your details to activate the calculators.

Full Name (required)
Contact Number (required)

Scenario 1: When you know the current, voltage and power factor of your plant under maximum load conditions.

Current at maximum load (A)
Voltage (V)
Power factor at maximum load
Target power factor (after power factor correction)
System voltage (415 or 550V)
Maximum demand cost (R/kVA)
Apparent power (kVA)
Active power (kW)
Required reactive compensation (kVAr)
Apparent power as a result of power factor correction (kVA)
Reduction in apparent power due to power factor correction (kVA)
Percentage reduction in apparent power due to power factor correction (%)
Reduction in current as a result of power factor correction (A)
Percentage reduction in current due to power factor correction(%)
Monthly saving in maximum demand as a result of power factor correction (R/month)

Scenario 2: When you know the apparent power, power factor and voltage of your plant under maximum load conditions.

Apparent power (kVA) at maximum load
Voltage (V)
Power factor at maximum load
Target power factor (after power factor correction))
System Voltage (415 or 550V)
Maximum demand cost (R/kVA)
Active power (kW)
Required reactive compensation (kVAr)
Apparent power as a result of power factor correction (kVA)
Reduction in apparent power due to power factor correction (kVA)
Percentage reduction in apparent power due to power factor correction (%)
Reduction in current as a result of power factor correction (A)
Percentage reduction in current due to power factor correction(%)
Monthly saving in maximum demand as a result of power factor correction (R/month)

To find out how you can improve your power factor correction even further, complete the enquiry form to request a free assessment of your Power Factor Consumption; or to speak to one of our specialists about Power Factor Correction for your business.