Murata and the Environment

Responses to climate change

Murata undertakes business operations with “reinforcement of climate change countermeasures” as a priority non-financial issue (material issue).

Until the present, Murata has established its own standards for capital investment related to energy conservation, and we have responded to the issue of climate change by actively conducting capital investment to allow us to save energy. We obtain third-party certification of our greenhouse gas (GHG*1) emissions and proactively disclose information, for which we receive high evaluations from outside the company, such as in the CDP*2 climate change survey.

However, in addition to increased production due to the recent expansion of our business, several mergers and acquisitions (M&As) and the development of new businesses have caused a rapid increase in our emissions of greenhouse gases. In order to both halt this increase and reduce our emissions, we continuously take action, led by Climate Change Commitee that asssinged vice president as chairman and assinged director as sub chairman.

Countermeasures that is chaired by the responsible vice president and the Initiative Promotion Subcommittee, a subsidiary organization, to set greenhouse gas reduction goals based on the SBT*3 concept, discuss the details of information disclosures relating to the TCFD*4 Recommendations, and reduce greenhouse gas emissions.

In addition, we are supplementing our existing capital investment-based approach to energy conservation by beginning to optimize our use of energy during production through the creation of new energy management systems that utilize Murata sensing and IoT technologies.

We also participate in the Japan Climate Leaders Partnership, an organization that is ambitiously addressing the issue of climate change in Japan. In addition to making use of knowledge from outside the company to assist us in speeding up our own initiatives, we are also examining the possibility of cooperating with other participating companies to launch projects that will contribute to climate change initiatives globally.

  • *1.

    GHG: Greenhouse gas. Gases that contribute to the greenhouse effect.

  • *2.

    CDP: Carbon Disclosure Project. An international nongovernmental organization (NGO) that surveys and evaluates the environmental initiatives of entities such as companies and cities and publishes the results.

  • *3.

    SBT: Science-based targets. Quantitatively derived scientific targets established in relation to long-term scenarios for the reduction of greenhouse gases.

  • *4.

    Task Force on Climate-related Financial Disclosures. An organization that supports businesses that discloses information on climate change risks and opportunities.

Method of calculating total greenhouse gas emissions

Following the GHG Protocol, a global calculation standard, we calculate total emissions within the three scopes defined below:

Scope 1: Direct emissions of greenhouse gases generated by emission sources either owned or managed by the business
Scope 2*5: Indirect emissions of greenhouse gases accompanying the use of electricity, steam, and heat
Scope 3: Indirect emissions other than those covered by Scope 2 (business trips by employees, transportation and delivery of products, etc.)

  • *5.

    Following the issuance of new guidance in fiscal 2015, calculations are conducted using the CO2 conversion factor for each country derived using the location method
    (Reference Link:ESG Data Book Scope 3 )
    (Reference Link:GHG Protocol Website別ウィンドウで開く )

Reinforcement of climate change countermeasures

The Special Committee on Climate Change Countermeasures is positioned as a subsidiary organization to the CSR Management Committee, which is chaired by the Representative Director and comprises company vice presidents. The Special Committee comprises representatives of production plants, Business Departments, Development Departments, and staff, and works to conserve energy and promote the use of renewable energy via a company-wide system.
Specific initiatives that have been advanced by the Special Committee include the horizontal rollout of energy conservation measures throughout the entire company and the introduction of heat pumps to production facilities.

The Committee is revising our criteria for investment decisions in relation to energy conservation overall and working to enhance our energy conservation initiatives. In parallel with these initiatives, we are actively introducing solar electric power generation systems and purchasing renewable energy certificates, contributing to the advancement of renewable energy.

In fiscal 2020 we also established the Initiative Promotion Subcommittee as a subsidiary organization of the Special Committee on Climate Change Countermeasures. The Subcommittee will determine the CO2 calculation scope and establish calculation methods for acquisition of SBT certification and discuss the details of information disclosures in accordance with the TCFD Recommendations.

Murata’s total greenhouse gas emissions

In fiscal 2019, we had achieved to reduse about 160,000t-CO2 compered last fiscal year because of expanding continuous energy conservation and rationalization of energy use.

Toward achiving reduction goal with 1.4 million t-CO2 or less in 2021, we work on to expand energy conservation and renewable energy, and we will consider various of measures such as the introduction of carbon pricing, we will accelerate our implementation of such measures.

Trend of total GHG emissions

Murata is a member of the Japan Electronics and Information Technology Association (JEITA). The electrical equipment and electronics associations, including JEITA, participate in KEIDANREN’s Commitment to a Low Carbon Society with an eye to 2020, and aim to improve the energy efficiency of production processes by 1% per annum. In order to achieve this target, Murata is also working to improve energy efficiency through energy-efficiency measures at factories and offices, etc.

Rate of improvement in quantitative basic units at domestic factories
Percentage of GHG emissions by region

Breakdown of SCOPE 1 and SCOPE 2 Emissions in FY2019 (CO2 equivalent)

Scope Type of greenhouse gas Emissions [ton-CO2]
Scope1 CO2 171,718
CH4 0
N2O 0
HFCs 1,314
PFCs 133,907
SF6 0
Others 0
Scope2 CO2 (Due to power) 1,165,203

Third-party verification of greenhouse gas emissions

As initiatives to tackle climate change have become essential for companies, Murata manages its greenhouse gas emissions based on reliable data that has been certified by a third party. Murata believes that disclosure of highly reliable data is a first step and receives third-party certification of greenhouse gas emissions each year. Furthermore, Murata is actively working toward the introduction of solar power generation, and hence, it also receives certification of the amount of solar power generated.

Link: Independent Assurance Statement別ウィンドウで開く

Reducing PFCs

PFCs are chemical substances that contribute to global warming and are a target for reduction under the Kyoto Protocol. Murata is a member of the Japan Electronics and Information Technology Industries Association (JEITA), and we stand behind the organization’s voluntary action plan. Murata itself has set a fiscal 2020 target of achieving a 65% reduction in liquid PFCs against fiscal 2002 in terms of CO2 equivalent, and has worked to realize this goal. From 2015, we have been successively introducing PFC regeneration and recovery equipment to worksites that use large amounts of liquid PFCs, and in fiscal 2019 we realized our target, achieving a reduction of 76% against fiscal 2002.

Changes in volume of liquid PFC use and rate of reduction (Domestic)

Reduction of environmental impact arising from distribution

We strive to reduce environmental burden at the distribution stage of products in addition to manufacturing stages.

In addition to reducing CO2 emissions by making transportation more efficient, we are also promoting eco-friendly physical distribution based on the 3Rs.

Tracking CO2 emissions in domestic distribution and overseas distribution

Until fiscal 2015, we set targets for the reduction of CO2 emissions every year based on our 5th Environmental Action Plan and worked to realize them. As a result, we achieved a specific outcome in relation to CO2 emissions during distribution in Japan (a reduction of more than 70% in emissions per unit of net production against figures for fiscal 2007).

Having realized this result, in our 6th Environmental Action Plan in effect from fiscal 2016, we did not stipulate a new set of targets for the reduction of emissions during distribution but made these reductions a feature of standard operations. Going forward, we will continue to implement distribution management that considers the environment, monitoring emissions daily.

  • In fiscal 2019, our CO2 emissions during domestic distribution were 402 tons per month, a 71% reduction in CO2 emissions per unit of net production against fiscal 2007.
  • Murata’s CO2 emissions during distribution for the entire world were approximately 14,412 tons per month.
CO2 Emissions during Domestic Distribution

Reducing energy consumption

At Murata, we are developing electronic component manufacturing equipment that has a high rate of energy efficiency. Our indicator for the energy savings realized by this manufacturing equipment is energy consumption per unit of production (per unit of net production). We are developing the new equipment with the goal of a 25% or higher reduction in energy consumption against benchmark machinery (conventional manufacturing equipment).

We have also been proceeding with energy-saving improvements to the existing manufacturing equipment in operation at our plants. In fiscal 2019, we focused on a horizontal rollout of approximately 70 energy-saving measures for manufacturing equipment that we have formulated to date.

We have made improvements, focusing on measures with a large greenhouse gas reduction effect. Our main energy-saving initiatives included 1) updating to high-efficiency equipment, including refrigeration equipment; 2) introduction of thermal recovery equipment; 3) reducing electricity use when equipment is on standby; and 4) reducing air-conditioning power by optimizing the pressurization of clean rooms.

In addition, every year we conduct energy-saving training workshops for production equipment design engineers in their second year of employment, providing them with expertise in relation to the design of production equipment in order to realize energy savings.

In fiscal 2020, Murata will investigate the introduction of new energy-saving technologies and, as a new initiative, will build an energy measurement system combining sensors and wireless systems developed in-house in an effort to conserve energy and increase productivity.

Energy Conservation Performance of Developed Equipment
Energy conservation performance of developed equipment
Changes in Energy Consumption

Contributing to the prevention of global warming through energy-saving activities that put our organizational capabilities to work

Murata is working actively on the visualization of energy in its business, using in-house technology, and is establishing a system that will allow us to plan and effectively implement energy-saving measures. Specifically, we are moving ahead with the introduction of an energy management system that enables energy usage to be analyzed at both plants and the head office. The system uses wireless sensors developed by Murata to gather such data as temperature and humidity in a plant and the current value of various pieces of equipment and sharing them online. This system has won a Good Design Award and a Chairman Prize of ECCJ in the Energy Conservation Grand Prize for excellent energy conservation equipment in fiscal 2017. Thus far, Komoro Murata Manufacturing has used this energy management system to optimize its air-conditioning and reduce standby power of equipment through energy visualization, resulting in a 2.2% reduction in greenhouse gas emissions for the plant overall. Murata will continue making efforts to introduce advanced energy-saving measures such as the energy management system throughout the Group, which has operating bases around the world.

Introduction of renewable energy

As one of its “reinforcement of climate change countermeasures” initiatives, Murata is working to increase the volume of renewable energy consumed in business activities. As a global company, we have actively promoted the introduction of solar power generation both in Japan and in other countries such as China. In fiscal 2019, we generated a total of 35 million kWh of electricity from renewable energy sources such as photovoltaic power generation facilities, which contributed approximately 20,000 t-CO2 to our greenhouse gas reduction efforts. We will continue to consider introducing renewable forms of energy in Japan and other countries with the goal of contributing to environmental load reduction.

One specific measure for the introduction of renewable energy undertaken in fiscal 2019 was using the 1,200-space parking lot owned by Okayama Murata Manufacturing Co., Ltd. (located in Setouchi City, Okayama Prefecture) to install one of Japan’s largest parking lot mega-solar systems. Operation started in March 2020. Instead of conventional panels that generate electricity only on the surface, Murata’s solar panel system uses double-sided panels that are photosensitive on the reverse side as well. As a result, electricity is generated not only from direct sunlight hitting the panel surface, but also from light reflected by parked cars and the ground onto the reverse side, improving the electricity generation ratio per unit of installation area. The system has the capacity to generate the electric power used by approximately 600 standard households and is expected to reduce CO2 emissions by 1,698 tons annually. The company also plans to install double-sided panels in a 500-car parking lot in fiscal 2021.