Responses to Climate Change

Up to 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.

In addition, we also receive evaluations from outside the company. We obtain third-party certification of our greenhouse gas emissions and proactively disclose information, which has earned us an A- rating in the CDP (*1) climate change survey. 

However, in addition to increased production as a result of recent expansion of our business, large-scale mergers and acquisitions and the development of new businesses caused a rapid increase in our emissions of greenhouse gases in fiscal 2017. In order to both halt this increase and reduce our emissions, we have formed a Special Committee on Global Warming Prevention that is chaired by one of our Directors, and established long-term visions for 2030 and 2050 based on the SBT (*2) concept.

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 incorporate 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 CDP: Carbon Disclosure Project. An international non-governmental organization (NGO) that surveys and evaluates the environmental initiatives of entities such as companies and cities, and publishes the results.
*2 SBT: Science-based targets. Quantitatively-derived scientific targets established in relation to long-term scenarios for the reduction of greenhouse gases.

Murata’s Total CO2 Emissions


In fiscal 2017, energy conservation and streamlining efforts enabled us to reduce our CO2 emissions by approximately 40,000 tons. In addition, we improved our emissions per unit of production by 11.2% against the figure for fiscal 2012, and as a result cleared the industry target of 7.73%.


At the same time, factors including the incorporation of new worksites as a result of M&A saw us generating total CO2 emissions (*) of 1.4 million tons in fiscal 2017, a result that exceeded our target figure of 1.2 million t-CO2.


Taking these results into consideration, we will examine a variety of measures in addition to energy conservation to enable us to achieve our SBT-based targets across the entire company, including new business sites acquired through M&A. These measures will include the introduction of renewable energy and carbon pricing, and we will accelerate our implementation of such measures.


Trend of total CO2 emissions and the rate of improvement in quantitative basic units
CO2 Emissions by Region
fiscal 2017 (CO2 equivalent)
Type of greenhouse gas
 Emissions in fiscal 2017 [ton-CO2e]
 CO2
146,397
 CH4
0
 N2O
0
 HFCs
2,018
 PFCs
102,632
 SF6
0
 その他
0
Emissions coefficients were calculated using the IPCC 4th Assessment Report (AR4) 100-year time horizon

Initiatives of the Committee on Global Warming Prevention

The Special Committee on Global Warming Prevention is positioned as a subordinate body to the CSR Management Committee which is chaired by the President and made up of company Directors. The Special Committee is made up of representatives of production plants, Business Departments, Development Departments, and Headquarters staff, and works to conserve energy and prevent global warming via a company-wide system.

Concrete initiatives being advanced by the Special Committee include the horizontal rollout of energy conservation measures across the entire company, the introduction of heat pumps to production facilities, and the improvement of productivity at our manufacturing sites.

In addition, since fiscal 2017 we have been revising our criteria for investment decisions in relation to energy conservation, and working to enhance our energy conservation initiatives.

Togi Solar Park at Hakui Murata Manufacturing Co., Ltd.
Togi Solar Park at Hakui Murata Manufacturing Co., Ltd

Introduction of Renewable Energy

In addition to energy-saving measures, Murata is also introducing photovoltaic power generation facilities as a means of producing renewable energy in order to further reduce our burden on the environment. In 2017, our photovoltaic power generation facilities generated a total of 6.8 million kWh of electricity, which contributed approximately 4,200 tons to our CO2 reduction efforts. We will continue to consider introducing renewable forms of energy with the goal of contributing to environmental load reduction.

Development of Energy-Saving Electronic Component Manufacturing Equipment 

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 50% 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 2017, we focused on a horizontal rollout of approximately 70 energy-saving measures for manufacturing equipment that we have formulated to date.

Our main energy-saving initiatives included: 1) The installation of heat exchangers to enable us to use the waste heat from drying equipment; 2) The operation of heat treatment equipment in eco mode; 3) The use of vacuum plants for ejectors; and 4) Ensuring that air blowers are turned off when equipment is standing by.

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

In fiscal 2018, we will continue to standardize energy-saving improvement measures that have proven successful, and incorporate them into the standard functions of production facilities. By this means, we will accelerate the introduction of energy-saving production equipment and promote the further horizontal rollout of energy-saving measures.
Energy Conservation Performance of Developed Equipment Energy Conservation Performance of Developed Equipment

Murata Electronics (Thailand), Ltd. (“Murata Thailand” below), located in Chiang Mai in Thailand’s north, is the second subsidiary established by Murata in the ASEAN region. Thailand is displaying vigorous economic growth, and its energy consumption is increasing year-by-year, but in the past 10 years the government’s energy policy has seen an improvement of close to 40% in energy efficiency in the nation. In the same way, Murata Thailand is also actively working to implement energy-saving initiatives. As a result of measures including the introduction of high-efficiency equipment, such as LED lighting, efforts to improve operation to increase the efficiency of the company’s air conditioning, and efficient deployment of a system for the promotion of energy conservation that functions horizontally across the company organization, the company has reduced its emissions by 880 t. This represents 2.5% of Murata Thailand’s total CO2 emissions. Going forward, in addition to continuing to fulfill its social responsibility as a company doing business in Thailand, Murata Thailand will go on working to provide a positive stimulus to the Murata Group as a whole, which encompasses bases conducting activities across the globe.

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 2017 we realized our target, achieving a reduction of 71% against fiscal 2002.


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