Variable Speed Drives:

Reducing the energy costs of commercial HVAC systems

HVAC systems are responsible for 26% of the electricity consumed in the commercial sector, with the motors that drive compressors, pumps and fans in these systems accounting for more than 98% of that energy. Variable Speed Drives (VSDs), when applied to HVAC systems, can provide energy savings of between 20 and 40%, whilst also enhancing operation and comfort.

Topics covered in this fact sheet include:

  • VSDs explained.
  • Taking the load off HVAC systems in commercial buildings.
  • Additional tips to help reduce the energy cost of HVAC systems.
  • Eskom’s national Advisory Service.
  • Call 08600 37566 and leave your name and number and one of our advisors will contact you. Alternatively, ask for a specific advisor to contact you. email address: