Drives and Motors Power Route to Net Zero: How Variable Frequency Drives Save Energy


Across a range of industries, many motor-driven systems operate below optimal efficiency levels. In some cases, these systems see energy losses ranging from 20 percent to 50 percent. These inefficiency levels vary across different sectors and industries. For example, industries such as manufacturing, HVAC (Heating, Ventilation, and Air Conditioning), water treatment, and pumping systems tend to have a higher concentration of inefficient motor-driven systems due to their extensive use of motors.

The world is undergoing a transformative shift towards sustainable practices and reducing carbon emissions. Countries and industries strive to reach net zero, or cutting greenhouse gas emissions as close to zero as possible. The effort requires a complete transformation of how people around the world produce, consume, and move.

During the 26th UN Climate Change Conference of the Parties, world leaders submitted their plans to cut carbon emissions by 2030 and achieve Net Zero by 2050. As consumers, we have a crucial role to play in achieving a net zero future. One significant aspect of this journey involves optimizing the energy efficiency of motor-driven systems, which are integral to our modern lives.

One way for industries to achieve net zero is utilizing variable frequency drives (VFDs) in industrial motor-driven systems. Let’s explore how VFDs can empower consumers on the path to net zero by enhancing the performance of motors and reducing energy consumption.

Understanding Variable Frequency Drives

Variable frequency drives, also known as adjustable speed drives, are devices that control the speed and torque of an electric motor. VFDs adjust the frequency and voltage of the power supplied to the motor. By varying the frequency and voltage, VFDs enable precise control over motor speed, allowing it to match the required load and optimize energy consumption.

Efficiency Gains Through Variable Frequency Drives

Traditional electric motor systems typically operate at a fixed speed, regardless of the actual load requirements. This means that the motor is always running at full speed, even when the load is lower or fluctuating. Running a motor at a constant speed wastes energy because it operates at a level that may exceed the actual demand. This causes unnecessary energy consumption. By incorporating VFDs, consumers can significantly enhance their electric motor’s energy efficiency.

Variable Frequency Drives and Speed Control

VFDs allow for precise control of motor speed, enabling it to match the actual load requirements. This ensures that motors only consume the necessary amount of energy, reducing energy waste.

Variable Frequency Drives and Energy Savings

By adjusting the motor speed to match the load, VFDs eliminate the need for throttling and mechanical control methods that waste energy. The ability to operate motors at lower speeds when full power is not required translates into substantial energy savings.

Variable Frequency Drives Allow for Soft Start and Stop

VFDs enable motors to start and stop gradually, eliminating sudden jolts and reducing mechanical stress. This feature not only extends the lifespan of motors but also contributes to energy efficiency. Traditional motor systems experience high inrush currents during startup, which can be avoided with VFDs, saving energy and minimizing wear and tear.

How Variable Frequency Drives Enable Net Zero Goals

Incorporating VFDs into motor-driven systems aligns with the broader goal of achieving net zero carbon emissions. By reducing energy consumption and optimizing motor efficiency, VFDs contribute to a greener future in the following ways:

  • Carbon Footprint Reduction. The decreased energy consumption achieved through VFDs directly translates into reduced greenhouse gas emissions. This reduction in carbon footprint is vital in combating climate change and meeting sustainability targets.
  • Renewable Energy Integration. VFDs can facilitate the integration of renewable energy sources, such as solar and wind, into motor-driven systems. By controlling the speed and output of motors, VFDs enable the synchronization of energy generation from renewables with the variable energy demands of different applications, further promoting the use of clean energy sources.
  • Demand Response and Grid Stability. VFDs provide the flexibility to adjust motor operation based on electricity demand and grid conditions. By participating in demand response programs, consumers with VFD-equipped systems can support grid stability and contribute to the efficient use of electricity resources.

LEESON: The Industry Leader in Variable Frequency Drives

As consumers, we have the power to drive the transition to a sustainable and net-zero future. By adopting variable frequency drives in motor-driven systems, we can enhance energy efficiency, reduce carbon emissions, and contribute to a greener planet. LEESON® VFDs  provide precise control over motor speed, enabling optimal performance, reduced energy consumption, and the integration of renewable energy sources. Embracing this technology is a vital step towards achieving net-zero goals and building a more eco-friendly planet.

Make Your Whole System Energy Efficient

To increase energy efficiency, pair a LEESON® VFD with a SYMAX® permanent magnet motor  that is above IE4, or 90 percent efficient. To learn how LEESON solutions can help you achieve net zero, contact an expert today.


Talk To Our Sales Team

We're here to help. Our team of experts is ready to help energy-efficiently power your business. 

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