Is my lift energy efficient?

Technology development in the lift industry has mainly been driven by factors other than energy efficiency. Safety, travel speed, acoustic noise, ride comfort and occupied space are, traditionally, the main concerns in lift design. However, in the last few years the demand for energy efficient products and greener buildings has grown and the lift industry has responded accordingly, presenting its customers with solutions to meet these growing demands.

Energy efficient technology developments take different approaches that tackle different causes of inefficiencies in vertical transportation systems. These causes can be divided into two major groups: direct and indirect. Direct causes are the ones that can be directly related to the equipment.

The most common direct losses to energy efficiency are:

  • Friction
  • Transmission
  • Motor
  • Brake
  • Lighting
  • Controller

Indirect causes are related to the operation of the equipment and are associated with user behaviour or traffic management options. EU regulations impact indirectly on lift performance relating to the energy efficiency of new buildings, setting strict targets for carbon reduction. Building regulations monitor the majority of energy consuming equipment with the aim of improving the buildings energy efficiency. Lifts are thought to consume between 5% and 15% of a building’s energy, more than 50% of this could simply be down to car illumination!

Typical solutions to improve the energy efficiency of your lift:

  • Modern variable frequency drive units
  • Regenerative drive systems
  • Eco efficient car lighting
  • Sleep mode when not in use
  • Heat recovery from lift motor rooms
  • Ensure optimal maintenance
  • Ensure well equipment is correctly set up

To find out how Ardent Lift Consultancy can help you make your lifts more energy efficient contact us for an informal discussion.