Sustainability - Environmental Impact Data (Fiscal 2022) from the Four Main Manufacturing Sites (Domestic Manufacturing Sites)
The Numazu Works is the main factory of the Meiden Group and conducts development, design, and manufacture of supervisory control equipment, power conversion equipment, power transformers and distribution panels , motor control equipment(inverters), electronic products, and surge arresters, development of software for integrated control devices and standalone, and on-site installation, and after-sales service for products.
At Numazu Works, we are promoting efficient energy use through capital investment and reform of equipment operation, and since July 2023 we have been obtaining 20% of our electricity from CO2-free sources to reduce greenhouse gas emissions. We are also advancing replacement of SF6 gas with dry compressed air, as a measure to reduce emissions of SF6 gas, which is a particularly potent greenhouse gas, in the product testing process.
Additionally, to comply with the purposes of the Building Standards Act (one water-purification tank per site) and the Private Sewerage System Act (obligation to make efforts to convert individual water-purification tanks to combination water-purification tanks), and to avoid the risk of process wastewater spills, a complete upgrade on the wastewater system at the plant began in FY2022.
The upgrades to the wastewater system at the plant continue to make strides into FY2024.
Numazu Works, Environmental Manager, Masanori Fukumoto
The Ota Works conducts development and manufacture of large electric generators, power generation equipment, dynamometer systems, and control equipment, etc.
In addition to previous environmental activities, this year, we procured CO2-free electricity and achieved zero greenhouse gas emissions from electricity consumption. We will continue working to reduce our environmental impact and achieve the SDGs.
Ota Works, Environmental Manager, Manabu Fujikawa
The Nagoya Works develops and manufactures logistics and transportation products and ceramic membranes used for water treatment and has manufactured integrated motor and inverter units for EVs since FY2020.
In FY2023, production of inverter units for EVs and ceramic membranes increased, resulting in higher emissions of greenhouse gases. However, we worked to achieve efficient equipment operation, and emissions per unit of production were improved. As the rate of decarbonization is increasing and technology for electrification, computerization, and artificial intelligence of electric vehicles is evolving rapidly, Nagoya Works will focus on electrification and contribute to society.
Nagoya Works, Environmental Manager, Tomohisa Asakura
Since its foundation in 1943, KOFU MEIDENSHA ELECTRIC MFG. CO., LTD. has been manufacturing small and medium-capacity industrial motors and forklift motors, and has been manufacturing EV motors since 2009.
We reduced energy demand in our manufacturing process in FY2023, but the impact of abnormally hot weather caused overall energy consumption to remained unchanged versus FY2022. Each site worked to achieve efficient equipment operation and emissions per unit of production were improved. In addition, since FY2022, we have been sourcing renewable electricity for 30% of the electricity we use as we work to reduce greenhouse gas emissions.
KOFU MEIDENSHA, Environmental Manager, Oda Shigehiro
