Environment

Taking definitive action today, to create a greener world tomorrow
Looking ahead to our 100th anniversary in the year 2021, we aim to become a global, leading green company. We’re working toward the creation of a low-carbon, recycling-based society by applying our wide-ranging and advanced technologies, as well as through ongoing actions by our employees.

As concern over environmental protection continues to grow around the world, Mitsubishi Electric has made consideration of the environment a companywide priority. We are aiming to make Mitsubishi Electric elevators and escalators the No. 1 Green Company in the industry.

An introduction to the environmental initiatives implemented throughout all our business activities, from product development to maintenance and modernization.

We strive to be green in all of our business activities
We take every opportunity to reduce burdens on the environment during each process of our business.



Energy Saving

Regenerative Converter

The Regenerative Converter transmits the power regenerated by the traction machine via distribution transformer to the electrical network in the building

(Energy Savings 35%)

Electricity Recycling System for Elevators

ELESAVE is designed to store electricity generated during regular elevator operations. The electricity stored in nickel-hydrogen rechargeable batteries can be used as an auxiliary power supply for running elevators, providing approximately 20% power savings

(ELESAVE) (Energy Savings 20%)

*Mitsubishi Electric Original*

Variable Traveling Speed Elevator System

This system allows elevators to travel faster than their rated speed depending on the number of passengers in the car, thereby improving transport efficiency

(Traffic improvement without increasing power-supply capacity 15%)

*Mitsubishi Electric Original*

PM Motor with Joint-Lapped Stator

With the joint-lapped motor in traction machines, the iron core is split like a hinge, which allows coils to be wound around the core more densely, resulting in greater motor efficiency and compactness

(ELESAVE) (Energy Savings 20%)

*Mitsubishi Electric Original*

Permanent Magnet (PM) Door Motor

The direct-drive PM door motor and the VVVF inverter allow for efficient door opening and closing

Car Light / Fan Shut Off

The car lighting and ventilation fans are automatically turned off if there are no calls for a specific period

LED Lighting

Energy-efficient and long-life LEDs are used for car lighting in elevators and under-handrail lighting on escalators

Material

Less Oil

The guide shoes and rope require only minimal oil, significantly reducing environmental impact.

Size and Weight Reduction

The size and weight of doors, cars, car frames, rails and some other components have been reduced based on test analysis of their shock-absorption performance.



Traffic Efficiency

∑ AI Group Control System

Effective control of multiple elevators reduces energy consumption

(Traffic improvement without increasing power consumption 20%)

Energy-Saving Operation with Smart Control Technology

According to each car’s location and passenger load, the group control system assigns a call to the elevator that best balances operational efficiency and energy consumption

(Energy Savings of 10%)

Destination Oriented Predictions System (DOAS)

When a passenger enters a destination floor in the hall, the hall operating panel indicates which car will serve that floor

Automatic Operation

Our newly-developed, innovative escalator inverter enables a unique way of controlling the escalator speed in Automatic and Variable-Speed Operations


To minimize the negative environmental impact of our business activities we employ environmentally responsible manufacturing technologies and production processes.


Rooftop Garden (5,537 m2)

(INAZAWA works)

The garden on the factory building shields from heat and improves air conditioning efficiency


Elevator Testing Tower (SOLAE̕)

(INAZAWA works)

Ventilation tunnels

Large voids (ventilation tunnels) allow the tower to breathe fresh air through window louvers, ventilating the tower and cooling off the indoor temperature

Photo catalytic tiles

Photo catalytic tiles on the outer walls resist and decompose dirt and even bacteria, helping reduce the use of cleaner


High Efficiency Ceiling Lights

Old lights were replaced by high-frequency inverter lights, as the illuminance sensors help optimize the use of natural light and save 270,000 kWh of electricity per year


Volatile Organic Compound (VOC) or Removal System

A Volatile Organic Compound (VOC) removal system was installed. It not only eliminates approximately 93% of the VOCs, it also deodorizes the gases emitted. As a result, the deodorizing furnace is no longer required, which ultimately reduces the natural gas consumed by Inazawa Works


ISO 14001 Certification

Mitsubishi Electric’s products, comprising the world’s leading elevator and escalator technologies, are now manufactured in nine countries and regions, and sold in 88 countries. Since the achievement of ISO 14001 certification at the Inazawa Works, other overseas manufacturing plants and affiliated companies in Japan have also been certified


Reduction in Wood Consumption for Packing

(3Rs – reduce, reuse, recycle)

By reusing wood from crates, Mitsubishi Electric reduced wood consumption by 240 m3 per year

The packaging for small parts of escalator trusses was changed from wooden crates to cardboard boxes, which reduced wood consumption by 69 m3 per year


Increasing Load Capacity to Reduce the Number of Trucks Used

We formulated guidelines on how to stack multiple containers or crates depending on their shape to improve load capacity. These efforts reduced the number of trucks used, and CO2 emissions accordingly

Local Procurement and Production

Purchasing materials and manufacturing products as close as possible to our customers, we promote local procurement and production in order to use minimum resources and energy in transportation



Development of Installation Engineering

In order to reduce the time and energy required for installation, installation equipment was made smaller and lighter. Mitsubishi Electric developed its installation method and equipment to have less impact on the environment


High-Performance Maintenance Service

Monitoring each elevators’ condition at the central control center, we provide efficient and reliable service without wasting energy



Proposing the Most Suitable Solution

Modernization allows an elevator to be refurbished by replacing some of its components so that usable components can be retained