Green Process

Environmental Impact Data Summary (FY2019)

“Green process” to reduce the burden on the environment in business activities

The Yaskawa Group emits CO2 and waste materials as a result of using energy, such as electricity, gas, etc., and resources, such as components/materials, water, etc., for manufacturing, sales, engineering, etc., of electrical products and systems, and other related businesses.
The above figure illustrates the status of environmental loads of our production and sales activities.
We also manage the amount of energy used, CO2 emissions, and amounts of waste materials and valuables generated from business activities of our domestic and international group companies.
The scope of management targets group companies of high energy usage amount (accounting for approximately 90% of the energy used by the entire group).
Going forward, we shall expand the scope of management to 100% and promote the reduction of environmental loads.
The graph at the right shows the energy-derived CO2 emissions of the Yaskawa Group in FY2019.

Preventing Global Warming

Initiatives to Save Energy

Yaskawa engaged in energy-conservation activities with the aim of reducing energy consumption per unit of sales in the Group by 6% (compared to FY2015), as per the target in the 2021 Midterm Environmental Plan.

In FY2019, Yaskawa reviewed air ventilation methods and advocated for improvements to prevent air leakages and shade outdoor units for air-conditioners, as well as upgrade lighting, air-conditioners, and production equipment. CO2 emissions per unit of sales, however, increased by 21% compared to FY2015 due to a slowdown in sales.
In addition, Yaskawa discovered new energy-saving points and suggested improvements when visiting plants in China and conducting energy efficiency assessments.

*Actual emission factors released by electric power companies were used until FY2018 to calculate CO2 emissions from electric power in Japan. Adjusted emission factors are used in calculations in FY2019.
*For calculation of CO2 emissions from electric power overseas, the representative emissions factor of each country (see IEA data) is used.
[Range of applicability of data] Yaskawa Group

Under its Midterm Environmental Plan (2019-2021), the Group aims to reduce CO2 emissions per unit of sales by 6% (compared to FY2015)  and reach a renewable energy rate of 5% or more in electricity usage. Since FY2017, Yaskawa has installed independent solar power generation systems using the company’s own power conditioners at its Nakama and Yukuhashi plants and promoted the purchase of renewable energy. As a result, the renewable energy rate increased to 6.2%, resulting in the achievement of the goal in the plan ahead of the target date. Yaskawa is planning to install a solar power generation system at the Yaskawa Technology Center, which is under construction on the premises of the head office and is scheduled for completion (Scheduled to open in spring 2021).
As we move forward, we continue to make energy-saving and energy creation investments in a systematic manner and work to achieve our long-term goals.

Solar power generation system to be installed at Yaskawa Technology Center (at the head office) 295 kW

Resource Recycling and Resource Saving

Recycling Activities

As a result of China’s plastic waste import restrictions, waste plastics, which were conventionally sold as valuable materials, are now classified as waste.
However, by selecting a recyclable waste disposal operator, we were able to maintain zero waste emissions.

 

Evaluation of Water Risks

Water risks refer to the dangers and threats on corporate activities that may result from water supply constraints and water pollution. The Yaskawa group evaluates water risks at production plans in Japan and overseas using “Aqueduct”*.
Evaluations showed that Yaskawa’s Asian plants in China and India are located in high water risk areas.
The Yaskawa Group does not require a large volume of water for production and has assessed that water risk impacts are negligible. The Group will conduct interviews at plants and take actions, as required.

*A water risk evaluation tool that has been developed and made available to the public by the World Resources Institution (WRI).

Initiatives of 3R(Reduce・Reuse・Recycle)

・Initiatives to Reduce Waste

The Shin-Kitano Building, owned by the Kansai Office of Yaskawa Mechatrec Corp., received the Osaka Mayor’s Excellent Efficient Building Award in FY2019 from the Osaka City Environment Bureau.
This is the fifth time the building has received this award. The mayor presented a letter of appreciation and plaque in recognition of their excellent efforts in waste reduction.

・Reuse of isopropyl alcohol (IPA)

High-purity IPA had been discarded from the Yaskawa Controls’ Bestact manufacturing line in the Yukuhashi Plant.
As a result of a review conducted by the group companies within Yukuhashi Plant, mainly centering on Yaskawa Electric, reuse of IPA was started because the quality of IPA used in Yaskawa Controls’s repair process could be ensured.
Consequently, the activities resulted in significant improvement in the amount of IPA discarded from 3,500 liters per year to 500 liters per year.

 

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