Power Factor Correction Controller
Restore Energy Efficiency and Cost Savings
Install a Power Factor Correction Controller and reduce your electricity costs by up to 20%.
When a PFC controller fails, your power factor drops—leading to higher electricity bills, demand penalties, and reduced solar efficiency. Replacing it restores your power factor correction system, ensuring lower costs and maximum return on your energy investments.
📞 Call 011 615 4640 or Fill out the form to get started.
Cut electricity costs by up to 20%
Reduce the size and cost of your solar system
Shorten the payback period for your solar investment
Alpha Power Solutions offers intelligent Power Factor Controllers for optimal performance
We track the number of times each capacitor bank is switched on and off as well as the total duration that each capacitor bank has been energised. This information is used to determine which bank will be energised or de-energised, resulting in an even wear of the complete power factor correction installation. The controller displays the following information:
Power Factor
Voltage
Current
Active Power
Reactive Power
Apparent Power
Individual & total harmonic distortion (voltage and current)
PFC Cabinet Ambient Temperature
Alarms present in the system
We also offer a remote monitoring and metering option to ensure the PFC equipment performs optimally. Complete the enquiry form to find out more.
For businesses that have reached the maximum of their electrical supply, the average cost of a PFC solution to free up supply capacity is usually 85% more cost-effective than an electrical supply upgrade.
Features & functions of power factor correction controllers
Capacitor bank control: power factor correction controllers facilitate the on-and-off switching of capacitor banks.
Dynamic compensation: our advanced PFC controller can dynamically adjust the compensation level based on the electrical systems’ real-time requirements. This ensures optimal power factor correction under varying load conditions.
Harmonic protection: to prevent damage to the PFC equipment, our controllers will disengage banks when excessive harmonic levels are detected.
Monitoring & control: our PFC controllers incorporate monitoring functions to determine the power factor and other parameters in an electrical system. The controllers can automatically adjust the compensation settings to ensure efficient power factor correction.
Frequently Asked Questions
What is a power capacitor?
Power capacitors offset the effects of inductive loads, which contribute to reactive power consumption. When removing or adding capacitors in response to varying load conditions, a power factor correction controller (capacitor controller) helps to maintain a near-unity power factor.
What are harmonics?
Harmonics are undesirable distortions in the voltage or current waveforms that are generated by certain types of loads. Harmonic filtering contributes to the maintenance of a cleaner power supply as well as improving the overall quality of the electrical system.
What is a power factor correction controller?
A Power Factor Correction (PFC) controller manages the performance and protection of a PFC system.
How does a PFC controller work?
Based on the current and voltage feedback received by the controller, the controller actively manages the various capacitor banks at its disposal in order to achieve the desired power factor.
How does power factor correction work?
Power factor correction is the process of compensating for a lagging current by creating a leading current by connecting capacitors to the supply so that the power factor is adjusted to be as close to unity as possible.
How do I calculate my power factor correction requirements?
Alpha Power Solutions has an online
power factor correction calculator
to assist you in calculating your power factor correction requirements.
Note, this calculator is for businesses with minimum monthly electricity costs of R30 000.
Power factor correction controllers supplied and installed by Alpha Power Solutions optimise the performance of your PFC equipment and, as a result, reduce your electricity costs, saving your business money. Contact us today by filling out the enquiry form and we will contact you.
TRUSTED BY INDUSTRY LEADERS
Our proven solutions have helped businesses across a wide range of industries save on electricity costs and improve efficiency. Here are just a few of the companies that trust Alpha Power Solutions to optimise their energy usage and keep their operations running smoothly.
INDUSTRIES THAT BENEFIT FROM OUR SOLUTIONS
Our energy-saving solutions are tailored to meet the needs of various industries. Whether you're in manufacturing, food processing, or retail, we help businesses like yours cut electricity costs, improve efficiency, and reduce downtime. Explore how we can support your industry.
| Abattoir | Dairy products processing | Paper & cardboard manufacturing |
| Bakery | Data centre | Paper & cardboard printing |
| Brewery & cooldrink bottler | Distribution centre | Paper mill (modern & traditional) |
| Brick manufacturing | Food processing plant | Pharmaceuticals manufacturing |
| Cable manufacturing | Metal fabrication | Plastic recycling |
| Cement product manufacturing | Metal recycling | Plastics product manufacturing |
| Chemical industry | Milling (flour, animal feeds, etc) | Saw milling and wood processing |
| Chicken farming (industrial) | Mineral processing | Store retail (large) |
| Cold storage | Packaging manufacturing (metal) | Tobacco product manufacturing |
| Manufacturing (components & parts) | Packaging manufacturing (paper & plastic) | Warehousing (large) |
PFC Case studies
Industry results
FURNITURE MANUFACTURING PLANT
Case Study
Cost of PFC installation
R100,000
Monthly saving
R8,700
Savings over 10 years
R1,500,000
R1,500,000
savings
.
WOOD PROCESSING PLANT
Case Study
Cost of PFC installation
R73,500
Monthly saving
R3,100
Savings over 10 years
R470,000
R470,000
savings
.
FOOD PROCESSING PLANT
Case Study
Cost of PFC installation
R1,250,000
Monthly saving
R84,500
Savings over 10 years
R13,520,000
R13,520,000
savings
.
ABATTOIR
Case Study
Cost of PFC installation
R580,000
Monthly saving
R110,000
Savings over 10 years
R21,000,000
R21,000,000
savings
.
ALUMINIUM PROCESSING PLANT
Case Study
Cost of PFC installation
R525,000
Monthly saving
R75,000
Savings over 10 years
R12,000,000
R12,000,000
savings
.
FLOUR MILL
Case Study
Cost of PFC installation
R175,00
Monthly saving
R17,000
Savings over 10 years
R2,200,000
R2,200,000
savings
.
With over 30 years of experience and recognised credentials from SAEEC, ECASA and SANEDI, Alpha Power Solutions is trusted by industrial businesses across South Africa to deliver proven energy efficiency results.
Our Power Factor Calculator gives you a quick, clear estimate of how much you could save. By analysing your power usage and current demand, it helps you understand the financial impact of installing a power factor correction system—before you commit to anything.
Use the calculator to:
Estimate your current power factor
See how much demand you could cut
Get a savings estimate based on your actual usage
It’s fast, accurate, and backed by real industry data. Businesses using our systems typically reduce demand by 20%–50% and see payback in under 18 months. Start with the calculator to see what’s possible.
POWER UP YOUR SAVINGS
We make it easy for you to start saving on electricity costs. Follow these three simple steps to get started.
1
CONTACT US
Call, email, WhatsApp, or fill out our form. We’ll align with your energy goals and start the conversation about reducing your electricity costs.
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2
SEND US YOUR ELECTRICITY BILL
We’ll analyse your bill to provide a preliminary cost/benefit analysis, showing you how much you could save.
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3
GET YOUR PERSONALISED SOLUTION
We’ll give you a tailored plan detailing your potential savings and the cost of the solution, so you can make an informed decision.
I want to reduce my Power/electricity cost
Tailor made solutions to help you reduce electricity costs by up to 20%, call now or use the form to send us your requirements.
Struggling with high energy costs and lack of power capacity? Alpha Power Solutions offers simple, effective solutions so you can save money and expand your business.
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