Most people never think about how much energy an elevator uses until the power bill arrives. Yet in a typical commercial building, elevators consume between 5% and 10% of all electricity, and the figure can climb even higher in older buildings with outdated equipment. Over the course of a year, a single heavily used elevator in a high-rise tower can draw roughly as much power as several average homes.
The good news is that elevator technology has quietly improved. Regenerative drives now capture the energy of a descending car, efficient motors do more with less electricity, and smart controls eliminate wasteful idle time. Together these changes can cut an elevator’s energy use by close to a third without changing how people move through a building.
This guide explains how much energy elevators actually use, the technologies that make them efficient, and how to read the energy rating labels that are becoming standard around the world.
How Much Energy Do Elevators Actually Use?
Elevators are a surprisingly significant slice of a building’s energy profile. The American Council for an Energy-Efficient Economy (ACEEE) estimates that a lightly loaded low-rise elevator consumes around 1,900 kWh per year, while a heavily used elevator in a high-rise building can consume around 15,000 kWh annually. A single elevator in a 30-story tower may use roughly 35,000 kWh each year.
Those figures vary widely because several factors shape an elevator’s energy demand:
- Building height and travel distance: taller buildings mean longer, more energy-intensive trips.
- Usage patterns: high-traffic office buildings cycle elevators far more often than low-traffic residential towers.
- Elevator type: hydraulic, traction, and machine-room-less designs have very different efficiency profiles.
- Motor and drive technology: older geared systems waste more energy than modern gearless motors.
- Standby consumption: lighting, fans, and displays keep drawing power even when the car is idle.
Manufacturer data from TK Elevator puts these numbers in perspective. A hydraulic elevator in a three-story building can consume close to 4,000 kWh per year, while an electric rope elevator in a six-story building uses roughly 3,000 kWh annually, despite serving a taller structure. That gap is a good first clue that elevator type and drive technology matter more than most people expect.
Regenerative Drives: Turning Wasted Motion Into Power
The single most impactful efficiency upgrade is the regenerative drive. In a conventional elevator, the energy released when a heavy car descends or brakes is simply dissipated as heat. A regenerative drive captures that energy instead and feeds it back into the building’s electrical system for immediate reuse.
The principle is the same one behind hybrid and electric vehicles. When the car travels down with a full load, or up with a light load, gravity does much of the work. The motor acts as a generator during these movements, converting motion back into electricity rather than letting it escape as heat.
How much does this actually save? Regenerative drives can recover up to 30% of an elevator’s total energy consumption, according to ACEEE research. Independent studies of regenerative elevator systems report recovery efficiencies between 20% and 35%, with overall energy savings of roughly 18% to 25% per operating cycle when paired with battery storage. The American Society of Mechanical Engineers (ASME) notes that a car traveling up light and down heavy can generate more power than it uses on that trip.
There is also a hidden second benefit. Because regenerative drives stop converting braking energy into waste heat, they reduce the cooling load on the building. That means the efficiency gain shows up twice: once in lower elevator electricity use and again in lower air-conditioning demand. Looking further ahead, some buildings are exploring how elevators in skyscrapers can serve as energy storage devices as well.
Six Technologies That Make Elevators More Efficient
Regenerative drives get most of the attention, but they are only one part of a broader toolkit. Modern energy-efficient elevators combine several technologies that each trim a portion of the total load.
| Technology | What it does | Typical energy benefit |
|---|---|---|
| Regenerative drive | Captures braking and descent energy as electricity | Recovers up to 30% of total energy |
| Gearless traction motor | Removes the gearbox, cutting friction and mechanical loss | Significantly higher motor efficiency |
| Machine-room-less (MRL) design | Houses the motor in the hoistway, eliminating a separate machine room | Cuts construction and operating energy |
| LED cab lighting | Replaces incandescent and halogen bulbs | Uses up to 80% less lighting energy |
| Standby and sleep modes | Power down lights, fans, and displays when idle | Sharply reduces idle draw |
| Smart controls and destination dispatch | Group passengers by destination to reduce stops | Roughly 5% savings, plus fewer trips |
Gearless permanent-magnet motors deserve special mention. Traditional geared traction machines use a gearbox that introduces friction and mechanical loss. Gearless motors drive the sheave directly, which makes them quieter, smoother, and more efficient. They also reach higher speeds, up to 1,200 feet per minute, compared with around 500 feet per minute for geared designs.
Destination dispatch is a quieter but meaningful win. Instead of passengers pressing floor buttons inside the car, they enter their destination in the lobby, and the system groups people traveling to nearby floors. Fewer stops means fewer starts, which is where elevators consume the most energy.
Decoding Elevator Energy Ratings: VDI 4707 and ISO 25745
If you have ever compared energy labels on a refrigerator or washing machine, you already understand the basic idea behind elevator energy classes. Two standards now apply the same A-to-G logic to elevators, with A being the best in class.
The German engineering guideline VDI 4707, published in 2009, was one of the first systematic frameworks. It assigns a class based on specific energy consumption, calculated as annual energy use divided by the number of starts and the rated load. A Class A elevator in medium use consumes 0.2 watt-hours per kilogram per start or less, while a Class G elevator consumes more than 10 watt-hours per kilogram per start.
The international standard ISO 25745 followed, with Part 2 published in 2015. It uses a slightly different approach, normalizing energy use against travel distance and rated load, and it also defines numbered performance levels for both running energy and idle or standby power. In practice, both standards arrive at the same familiar A-to-G scale.
Why do two standards exist? VDI 4707 gained early traction in Europe and remains widely used in green building certification. ISO 25745 provides a more internationally consistent measurement procedure. For most buyers and building owners, the practical takeaway is the same: ask for the elevator’s energy class, and treat Class C or better as a reasonable modern baseline.
Hydraulic, Traction, or MRL: Which Elevator Type Is Most Efficient?
Elevator type is the biggest structural factor in energy use, and the right choice depends heavily on building height.
| Type | How it works | Energy profile | Best suited for |
|---|---|---|---|
| Hydraulic | Fluid-driven piston pushes the car upward | ~4,000 kWh/yr in a 3-story building; least efficient | Low-rise, 2 to 5 floors |
| Traction (electric rope) | Motor and counterweight pull the car via ropes | ~3,000 kWh/yr in a 6-story building; efficient | Mid-rise to high-rise |
| Machine-room-less (MRL) | Traction system with no separate machine room | Most efficient per ride; eliminates machine-room energy | Low to mid-rise, space-constrained |
Hydraulic elevators are inexpensive to install and simple to maintain, but they are the least efficient option because the pump must work against gravity on every upward trip. They dominate the low-rise market where their lower upfront cost often wins out. Traction elevators use a counterweight to balance the car, so the motor only has to move the difference in weight, making them far more efficient for taller buildings. MRL elevators deliver traction efficiency without the dedicated machine room, saving both construction cost and the energy needed to heat, cool, and light that space.
Standby Power: The Hidden Energy Drain
Here is a fact that surprises most people: in many buildings, an elevator uses more energy sitting still than moving. In low-traffic buildings such as residential towers, standby consumption from cab lighting, ventilation fans, control panels, and floor displays can account for up to 80% of the elevator’s annual energy use.
This is why sleep modes are quietly one of the most effective efficiency measures available. A well-configured elevator will switch off cab lights and the ventilation fan after a short idle period, and power down displays and controls when the building is quiet overnight. The car wakes instantly when called, so passengers notice no difference.
Putting the pieces together, the payoff is real. A building that combines a regenerative drive, LED lighting, gearless traction, and proper standby settings can realistically cut elevator energy use by a third or more. Those savings compound across the elevator’s decades-long service life, and they also reduce peak demand charges and maintenance wear. As TK Elevator points out, keeping up with maintenance matters too: a poorly maintained system has to work harder, which quietly raises energy consumption alongside the risk of breakdown.
Frequently Asked Questions
Which is better, a hydraulic or an electric elevator?
For most buildings above a few floors, an electric traction elevator is the more efficient choice. It uses a counterweight to reduce the motor’s workload and consumes meaningfully less energy per ride. Hydraulic elevators are cheaper to install and remain common in low-rise buildings, but they are the least efficient type overall.
What is the best type of residential elevator for my home?
For a private home, a compact machine-room-less traction or a modern screw-driven elevator is typically the best balance of efficiency, quiet operation, and space. Hydraulic home elevators work well for short travel distances but use more energy per trip. The right choice depends on the number of floors, available space, and how often the elevator will be used.
What is the cheapest type of elevator?
Hydraulic elevators generally have the lowest upfront cost, which is why they remain popular in low-rise commercial and residential buildings. However, the lowest purchase price is not the same as the lowest lifetime cost. A more efficient traction or MRL elevator can save enough on energy and maintenance over its service life to offset a higher initial price.
How much energy does an elevator use per floor?
There is no single fixed figure because energy per trip depends on load, speed, and drive type. As a useful benchmark, a traction elevator in a six-story building averages roughly 3,000 kWh per year overall, which is comparable to a large household appliance rather than a major industrial load.
Do elevators use a lot of electricity?
Individually, a modern elevator uses modest electricity, roughly in line with a large home appliance. Collectively, though, they matter: elevators account for 5% to 10% of a building’s total energy use, and that share rises in older buildings with outdated equipment. For building owners, that makes elevators a meaningful and often overlooked efficiency opportunity.
The Bottom Line on Energy-Efficient Elevators
Elevators are easy to overlook, but they are a genuine lever for building efficiency. Between 5% and 10% of a building’s electricity flows through them, and much of that is waste that modern technology can recover. Regenerative drives recapture braking energy, gearless motors cut mechanical loss, and standby modes stop the quiet drain of idle power.
For building owners, the practical steps are straightforward:
- Know your elevator’s energy class under VDI 4707 or ISO 25745.
- Prioritize traction or MRL designs for new installations.
- Retrofit older cars with regenerative drives, LED lighting, and smart controls.
Energy-efficient elevators are one piece of a broader blueprint for modern building efficiency. The result is a building that uses less energy, costs less to run, and works no differently for the people inside it.
