Efforts for Decarbonization
CO2emissions reduction
COSEL initially set a target within Japan to reduce CO2 emissions to 30% or less of FY 2020 levels by FY 2030. To accelerate these efforts, we have revised this target and are now working toward achieving carbon neutrality by FY 2030.
We have launched a project focused on reducing electricity consumption, which accounts for a significant portion of our energy use. We are actively promoting energy-saving measures such as the use of energy-efficient equipment and actively conserving electricity.
We are also implementing renewable energy sources. In FY 2024, we adopted an offsite PPA and achieved zero Scope 2 emissions at our sales facilities through the use of non-fossil fuel certificates.
Looking ahead, we will continue to strengthen initiatives to conserve energy and mitigate global warming, including efforts to reduce reliance on fossil fuels.
＜Trend in CO2emissions (FY 2025 and after: target values) ＞
Use of renewable energy
In 2002, we installed 60 kW solar panels on the roof of the head office building, and we have expanded and updated the power generation equipment since then. Currently, we operate solar power generation equipment of 99 kW at the head office factory and 150 kW at the Tateyama factory.
We have also installed internal power generation display monitors.
Development of compact, high-efficiency power supplies
For new products, we conduct an environmental assessment at the development stage from the perspectives of resource conservation, energy conservation, recyclability, toxic substances, packaging, and packing materials. We also promote efforts to develop more environmentally friendly products.
Ultra-compact high-efficiency AC/DC TECS/TEPS Series (10/20 W)
Helps make customers' equipment more compact!
conservation
Installed surface areas
reduced to about one-third
Weight reduced from 60 g to 35 g
*Compared to previous products (LHA15 vs. TECS20)
High-efficiency design
conservation
*Power loss reduced by one-half compared to previous products
General-purpose compact DC-DC MU series (1.5/3/6/10 W)
Helps make customers' equipment more compact!
conservation
*Compared to the previous SU series
High-efficiency design
conservation
*Also greatly improves efficiency under light loads
Lessening environmental impact at production sites
To lower assembly costs by half, we are deploying on our production lines soldering devices that we developed in-house.
Compared with conventional soldering equipment, these devices help to lessen the environmental impact by greatly increasing equipment capacity.
Equipment cost reduction
Down 32%compared to existing equipment
Auxiliary material cost reduction (solder bars, IPA)
Down48%compared to existing equipment
Maintenance work reduction
Down60%compared to existing equipment
Equipment footprint reduction (space saving)
Down25%compared to existing equipment
＜ Power consumption efficiency compared to conventional tank ＞
(Comparison to conventional type-A soldering equipment)
＜ Trends in units of soldering equipment (facilities) adopted/CO2 reductions ＞
Promoting reductions in waste disposed of in landfills and recycling activities: *1 Toward zero emissions
COSEL promotes the Three Rs based on the perspectives of lessening environmental impact and effectible use of resources.
We regularly check the status of waste segregation and strive to raise employees’ awareness.
We will continue our efforts to control the volumes of waste from business activities disposed of in landfills by promoting recycling and thorough waste segregation.
＜ Trends in waste and recycling rates ＞
Examples of initiatives
Reduction
Previously, we had used bubble wrap bags to send certain components to our OEM manufacturers. After unpacking, these were disposed of as industrial waste. We were able to reduce the amount of waste by adopting a new packing method using reusable returnable containers. We also improved the reusability of these containers through means that include the use of rubber bands to keep their lids in place.
Reuse
Chip components are delivered wound on plastic reels like tape. Previously, we disposed of the used reels as stable industrial waste.
But since they remain clean and in good shape after use, we now have specialized vendors collect them for reuse.
Recycling
Defective units that could not be shipped as products and substrate scraps cut off in the production process were disposed of as industrial waste. We now separate them into metals, plastics, and other materials before disposal so that they can be recycled as cast ingots or auxiliary combustion materials in furnaces.
