How to Improve Your Elevators’ Energy Efficiency?

If you have elevators in your building, they are going to be consume more energy than almost any other electrical system. You can reduce the amount of energy these systems consume by taking a few steps. Unfortunately, there are no current standards that can help you qualify your elevators to become energy efficient. It seems that the only thing you can do, probably, is to install a new energy-efficient system. If it is not a new building, replacing the entire system with new ones can seem to be expensive. There are many other things you can do to increase energy efficiency without having to replace the entire system.

Elevator Energy Consumption Stats

Before you learn about the steps that need to be taken to lower energy consumption, it is going to help to learn which systems consume the most energy.
  • Machine Type: Geared machines consume up to 30% more energy compared to gearless machines.
  • Motors: Using regenerative drives can help in significantly increasing energy savings. It can also help in generating energy and recovering the energy loss. The energy cost savings can be as high as 50% when you switch to regenerative drives.
  • LED Lighting: Installing LED lights can help reduce energy consumption on lighting by up 80%.
You can also save up to 20% on energy if you replace the door operators with new systems.

Consider the Hoisting System

Hydraulic and traction are the two most commonly used hoisting systems for elevators. Hydraulic hoisting consumes a huge amount of energy and is also costly to maintain. Gearless traction hoisting is considered to be much more energy efficient. Some of these systems can be almost 70% smaller and consume only half the energy. Gearless traction hoisting can also create energy when the elevators move down. Traditionally, it may not have been possible to harness this energy, but it is now easy to convert it into useful energy.

Install Automated Controls

Install automated controls that will automatically turn off lights, fans, air conditioning and other systems when the machine is not in use.  The standby mode is when the elevator consumes most of the energy. You could end up saving up to 70% of the energy consumed by the system if you take control over what it does during the standby mode. The control systems have perhaps received some of the biggest improvements in this field. You can find elevator systems and software that can implement different types of energy-saving concepts. Some of the most effective ones that you can embrace are as follows:
  • Standby Mode: Software can take over automatic control of the system, turning off power to non-essential systems when the elevator enters an idle mode. It will power back the system when a user touches a button.
  • Data Logging: Such systems can gather traffic data and assess it to create more efficient elevator control strategies. The software can gather and analyze data such as peak periods, idle periods, elevator usage frequency, and floors being traveled.

Install LED Lighting

Lighting consumes only a small part of the energy that an elevator requires to operate. But replacing old incandescent or fluorescent lights with new LED lights can help you save up to 80% energy spent on lighting. Besides, LED bulbs can last for decades, thus eliminating the need to replace the lights every now and then.

Consider Hardware Improvements

Besides upgrading the hoisting system, you can also consider making the following hardware improvements in your elevator systems to increase energy efficiency:
  • Motor: If your elevators are using the older DC motors, get them replaced with new AC motors. This can help reduce energy consumption by up to 50%.
  • Landing Systems: You can also replace older landing systems based on tape or magnets with improved ones. The new systems can bring the cabs to a halt quickly and don’t require the motor to keep running for as long.
  • Starters: It can also help if you replace old starters with new ones.
  • Door Drive Motors: You can also replace the door drive motors with new ones that enter standby mode whenever not in use. Such motors can return to function whenever needed.
So make sure to follow these tips to lower your energy bills and make your elevators much more efficient.