Danfoss Drives are advanced variable frequency drives (VFDs) that control the speed and torque of electric motors, enabling pumping systems to operate more efficiently and reliably. They are important because they optimize energy consumption, reduce mechanical wear, improve process control, and help extend the lifespan of pumps and related equipment.
Water distribution systems are often the largest energy consumers in water supply networks, with leakage rates of 25–50% being common. By dividing the network into pressure zones and reducing average pressure by 30–40%, energy use and water losses can be significantly lowered. The Danfoss VLT® AQUA Drive supports efficient pressure management in booster pumping stations through advanced functions such as Sleep Mode, Dry Run Detection, Automatic Energy Optimization (AEO), Cascade Control, and Flow Compensation, improving reliability, reducing water hammer, and minimizing energy consumption.
Wastewater treatment plants are often the largest electricity consumers for municipalities, accounting for 25–40% of total energy costs. The use of AC drives and real-time process control can reduce energy consumption by 20–40% while improving operational efficiency. Modern facilities increasingly recover energy from wastewater by using methane generated during treatment, transforming plants into energy-producing “Water Resource Recovery Facilities.” In advanced systems, the recovered energy can offset the entire energy demand of water production, distribution, and wastewater treatment, enabling an energy-neutral water cycle. Achieving this requires AC drives on all rotating equipment to provide precise, automated control and adapt to changing process conditions.
