The biggest environmental impact of an elevator is generated by its use. Consequently, reducing the environmental impact of an equipment is most effective when the product is being developed and the optimal solution for each building is being planned. For example, solutions such as the destination control system, where the passenger chooses his destination floor before entering the elevator, can significantly save energy by increasing handling capacity and decreasing the number of trips. Through effective research and development, KONE continuously strives to improve the eco-efficiency of its solutions.
Carbon Footprint
The carbon footprint can be seen as the total amount of carbon dioxide (CO2) and other greenhouse gases emitted over the full life cycle of a product or service, measured in units of carbon dioxide. To study energy use, KONE analysed the carbon footprints of selected products using life cycle assessments.
The amount of carbon dioxide emitted by an elevator varies a great deal, depending on its size and usage. For example, during its 25 years life cycle the standard elevator in a five-story residential building generates almost six times less carbon dioxide than a bigger elevator in a 16-story office building.
Focusing on Energy Efficiency
The carbon footprint can be lowered by reducing the energy consumption of an elevator over its life cycle. KONE’s solutions are energy-efficient thanks to a wide variety of features that combine both energy and space savings in the customer’s premises. KONE set the trend with KONE EcoDisc®, a lightweight, highly efficient hoisting machine.
Reducing Standby Energy Consumption
When the elevator is idle, it still consumes energy. The standby energy is mostly consumed by the car lights, control devices, car ventilations, elevator drives and control systems. This standby energy consumption can account for 25 to 80 percent of the total energy consumed by the elevator, depending on its design and usage. Less frequent usage, for example in a small apartment building, means that a higher percentage of the electricity can be saved by reducing standby energy consumption.