Green Process

Environmental Impact Data Summary (FY2020)

“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 FY2020.

Preventing Global Warming

Initiatives to Save Energy

Yaskawa engaged in energy-conservation activities with the aim of reducing total Group CO2 emissions by 10% (compared to FY2018), as per the target in the 2022 Midterm Environmental Plan.
In FY2020, 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.
In addition, as a result of promoting the adoption of solar power generation equipment and 100% renewable energy-derived electricity, CO2 emissions were reduced by 10% compared to FY2018.
We are also implementing efforts to discover new energy-saving points by visiting overseas offices to conduct energy efficiency assessments.

  • Transition in CO2 emissions
  • Transition in CO2 emissions
  • *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 from FY2019 onward.

    *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

Initiatives to Adopt Renewable Energy

Under its Midterm Environmental Plan 2022, the Group aims to reduce CO2 emissions by 10% (compared to FY2018) and reach a renewable energy rate of 58% or more in electricity usage. In FY2020, Yaskawa installed independent solar power generation systems using the company’s own power conditioners at its Yaskawa Technology Center (Yahata-nishi plant), and Yukuhashi and Nakama plants. Yaskawa completed the adoption of 100% renewable energy-derived electricity at the Yahata-nishi plant, the Nakama plant, and the Kokura plant. As a result, the renewable energy ratio has increased to 43%.
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.

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.

Water Management

The Yaskawa Group strives to reduce Water withdrawal at our production plants by reexamining the management of cooling towers and our water leakage countermeasures.
We evaluate water risks*1 at the Yaskawa Group’s production plants in Japan and overseas using “Aqueduct”*2.
Evaluations indicated that some of Yaskawa’s plants in China and India are located in high water risk areas.
We have conducted individual studies on sites located in areas with high water risk, and we have confirmed that the necessary measures are actually being taken at sites with high risk.

*1: Water risks refer to the dangers and threats to corporate activities that may result from water supply constraints and water pollution.
*2: 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)

・Reuse of isopropyl alcohol (IPA)

High-purity IPA had been discarded from the Bestact Solutions’ 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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