Contributing to the prevention of global warming through energy-saving activities that put our organizational capabilities to work
Murata has been continuously implementing energy conservation initiatives from the past and continuously executes between 450 and 600 (equivalent to 40 to 50 kt-CO2 reduction and reduction in energy costs of approximately 700 million JPY) large and small energy conservation measures annually. Since 2015, we have been performing energy audits (energy conservation diagnosis) at each business site as well as creating and deploying approximately 200 energy conservation checklists which can be horizontally deployed from among energy conservation initiatives concerning utilities and production facilities. The progress status, verification of the impact, and updating of the checklists are performed under guidance from the headquarters.
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.
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.
Furthermore, in addition to easing previous standards regarding renewable energy and energy conservation investment more than other investment standards to promote investment, starting from fiscal 2021 we introduced internal carbon pricing in order to accumulate future reductions of CO2 through self-supporting efforts. Specifically, we are assigning a monetary value to CO2 reduction and embedding it into the investment index to introduce shadow pricing which encourages decision-making that executes investments which are effective at reducing CO2.
Development of energy-efficient 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 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 2020, we focused on a horizontal rollout of approximately 70 energy-saving measures for manufacturing equipment that we have formulated to date.
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 investigated the introduction of new energy-saving technologies and, as a new initiative, has built an energy measurement system combining sensors and wireless systems developed in-house in an effort to conserve energy and increase productivity.
Murata will proceed a further analysis on the energy consumption of the manufacturing equipment in fiscal 2021 for an even better energy saving measures development.
Murata implements energy saving measures not only in manufacturing equipment but also engages in product manufacturing which considers the environmental load across the entire product lifecycle consisting of component material purchasing, design and development, production, usage, recycling, and disposal.
We establish our own certification criteria, conduct evaluations from the development and design stages, and provide the results as environmentally-friendly products.
Link: Environmental Contribution Through Our Products