Realizing a Low-Carbon Society

Business Sites Initiatives

Initiatives at Casio (Thailand) Co., Ltd.

Using insulation to reduce energy use

The company reduced the air-conditioning cooling load by installing insulation around the exhaust ports of the reflow system and dryer to block heat conduction. This reduced energy use by 4,651 Kwh per year.

Photo:Reflow systems insulation
Reflow systems insulation
Surface temperature decreased from 44.2°C to 21.9°C.
Surface temperature decreased from 44.2°C to 21.9°C.

Introducing buses to reduce CO2 emissions

The company has 40 buses that it provides for employees to use for their daily commute. Around 2,000 employees use these commuting buses. This measure accounts for an annual reduction of CO2 emissions of 1,567 tons.


Consumption rate (km/L)


Emission coefficient



GHG emission

Special notes

Before introduction Motor cycle (gasoline) 50 60 2.32166 1600 people 268 1,194,633  
Car (gasoline) 14,763 60 2.32166 400 people 268 1,011,510  
Total           2,206,143  
After introduction Bus (diesel) 2.6 60 2.58496 40 units 268 639,479  
Total           1,566,664 Reduction
  • *1 Value published by the Ministry of Science and Technology of the Kingdom of Thailand
  • *2 Employees’ average commuting distance (round trip)
  • *3 Based on the Casio Group’s calculation standard (emission coefficient from Japan’s Act on Promotion of Global Warming Countermeasures)
  • *4 The number of people before introduction was calculated as 80% of all employees commuting by motorcycle and 20% commuting by car.
Photo:Commuting buses at Casio (Thailand)
Commuting buses at Casio (Thailand)

Initiatives at Yamagata Casio Co., Ltd.

Introducing the latest energy-saving air-conditioning systems

A new watch plant that started operations in May 2018 uses the latest energy-saving air-conditioning systems, such as an air-conditioning system with several air-conditioners with FFUs*1 and ceiling cassettes, zoning and separate air-conditioning for clean rooms. These systems enable efficient operation according to the production situation.

  • *1 FFU: Fan-filter unit. A system that passes air sucked in by the fan through a filter to purify it before sending it out as clean air.
Image:Air-conditioning system at Yamagata Casio
Air-conditioning system at Yamagata Casio
Photo:Clean room with latest air-conditioning system
Clean room with latest air-conditioning system

Initiatives at Casio America

Casio America has been carrying out energy- saving measures for many years.

In 2017, it won an ENERGY STAR Award from the U.S. Environmental Protection Agency (EPA).

The award recognized Casio America’s efforts to ascertain data on and efficiently manage electricity usage at its data center, and its initiatives to use a building management system to more effectively use cooling and heating. This ENERGY STAR Award was the fourth the company has received, following 2012, 2013 and 2016. Going forward, it will continue to carry out environmentally friendly initiatives to help achieve a sustainable society.

Photo;Casio America, Inc.
Casio America, Inc.
Photo;ENERGY STAR plaque

Initiatives at Hachioji R&D Center

The Hachioji R&D Center has installed automatic blinds and grows a green wall of vegetation at its facility to reduce CO2 emissions. The automatic blinds calculate the location of the sun, use sensors to detect the strength of the sunlight, and open and close automatically, thereby reducing the cooling and heating load. Since 2012, the Center has also grown a green wall of vegetation as a summertime energy-saving measure in an effort to reduce the cooling load even more. Through a process of trial and error to balance watering, fertilization, and sunlight, in the summer of 2017, the green wall (planted with two kinds of morning glories) grew splendidly to a size of 8.5 meters wide by 10 meters tall. Local residents even stopped by to take photos of it. This initiative to grow a green wall of vegetation won the first place award out of 36 entries in the “organization grouping” in the “green wall of vegetation category” in the “energy-saving contest” of the Environmental Lecture Presentation and Energy-Saving Contest, which was an event held in December 2017 to commemorate the 100th anniversary of the incorporation of Hachioji as a city.

Photo;Green wall of vegetation at the Hachioji R&D Center
Green wall of vegetation at the Hachioji R&D Center
Photo;Award certificate and first place gift
Award certificate and first place gift

Installation of LED Llighting

Casio is installing LED lighting at its business sites to reduce electricity consumption. By March 2018, it had installed LED lighting at the Hatsudai Head Office, Hamura R&D Center, Hachioji R&D Center, Yamagata Casio, Casio Electronics (Shenzhen) Co., Ltd., Casio (Thailand) Co., Ltd., Casio America, Inc., Casio Mexico Marketing, S. de R. L. de C.V., and Casio Electronics (Shaoguan) Co., Ltd., and other sites. The installed LED lighting has brought about substantial CO2 emissions reductions.

Photo;LED lighting in Casio Electronics (Shenzhen)’s lobby
LED lighting in Casio Electronics (Shenzhen)’s lobby
Photo;LED lighting in Casio (Thailand)’s plant
LED lighting in Casio (Thailand)’s plant
Photo;LED lighting in Yamagata Casio’s plant
LED lighting in Yamagata Casio’s plant

Participation in Light Down Campaign

Casio supports COOL CHOICE, a national movement promoted by the Japanese government, and the Fun to Share climate change campaign implemented by the Ministry of the Environment. The Group has also been taking part in the Light Down campaign since fiscal 2011.

In fiscal 2019, nine sites at four companies (Casio Computer Co., Ltd. [headquarters, Hamura R&D Center, Hachioji R&D Center, Fukuoka Sales Office, and Higashi-fussa Dormitory], Yamagata Casio [headquarters and Yamanashi Office], Casio Electronics Manufacturing and Casio Techno [Akihabara and Inadaira]) took part in the campaign.

Fun to Share

Reducing Power Consumption through Server Integration

Casio has vastly reduced its energy consumption by integrating the servers that had once been disparately located across the group.

Server integration results: A total of 1,200 servers had been integrated by March 2018.

Effects of reducing power consumption through server integration : A total reduction in power consumption of 1,800,000 kWh, yielding a reduction in CO2 emissions of 992 tons.

   Through Mar.2017 Apr. 2017 - Mar. 2018 Cumulative total
Number of servers integrated (machines) 1,140 60 1,200
Power consumption reduction (kWh) *1 1,710,000 90,000 1,800,000
CO2 reduction (tons -CO2)*2 942.2 49.6 991.8
Number of Japanese cedar trees needed to absorb this amount*3 67,301 3,542 70,843
  • *1 Calculated based on a 1,500 kWh reduction per server per year.
  • *2 Calculated based on CO2 emissions of 0.551kg kg/kWh.
    Figures for past fiscal years have been recalculated using the GHG Protocol Calculation Tools.
  • *3 Based on a document published by the Forest Agency of Japan's Ministry of the Environment, "Absorption Source Countermeasures for Greenery to Prevent Global Warming," indicating that a single Japanese cedar tree absorbs about 14 kg of CO2 annually.