Climate Change Initiatives

Much of Optex’s own CO2 emissions are generated through the use of electricity. But emissions due to our business activities are not the main issue—the electricity required to use our products after they are sold account for a large proportion of our total emissions. Therefore, while we aim to reduce emissions in our own activities, we also aim to further reduce CO2 emissions in our products and solutions by reducing their electricity consumption, extending their life cycles, and adding special functions.

There are specific products and solutions that help reduce CO2 emissions.　We plan to increase the sales of those products and solutions from 17.5% in 2018 to 25% by 2025.

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By using sensors effectively, you can reduce your electricity consumption.
Here, you can simulate how much CO2 emissions can be reduced by using Optex's representative products.

Unfortunately, even if CO2 reduction targets are met, immediate improvements to the global climate are not guaranteed. Therefore, it is crucial to simultaneously focus on disaster prevention. Optex leverages its expertise in sensing and IoT technology to develop services and devices such as remote monitoring systems and evacuation guiding lights.

Optex's headquarters, along with several domestic sites and subsidiaries, currently utilize electricity sourced from companies actively procuring renewable energy. Furthermore, Solar panels have installed at both the headquarters and several domestic subsidiaries. Combined, these efforts are projected to achieve an annual reduction of about 150 t-CO2 at our domestic business locations.

Calculation of contributed reduction
• For energy losses due to opening doors unnecessarily, we calculated them based on the basic model from “CEN/TR 16676:2014 - Energy losses by industrial door.” Only the following items are calculated based on our in-house standards.
　Duration of air-conditioner use: Half that of the model (243 days) = 121.5 days
　Door dimensions: We selected “Pedestrian S2” for the size classification—this is equivalent to the size of double sliding doors in Japan.
　Building size: We set the building size at 300 m3, based on a typical convenience store with an average area of 110 m2 and a ceiling height of 2.7 m.
　Open cycle: The safety guidebook for automatic doors states that the opening speed should be 500 mm/s or more, the closing speed should be 350 mm/s or more, and the hold-open time should be 1 to 5 seconds. Assuming a double sliding door with an opening of 2 meters, we set the opening time at 2 seconds, the closing time at 3 seconds, and the hold-open time at 8 seconds with a median of 3 seconds.
• For sensor lights, we calculated the CO2 emissions from the product of a conventional light source equivalent to the brightness of our LED lighting products (e.g., 80 W mercury lamp), the power consumption, the operating hours per day (12 hours, used only at night), and the CO2 conversion factor per kWh.
• For security sensors, we compared the power consumption with that of the same model’s power-driven type. We calculated the baseline CO2 amount by adding the product of the CO2 conversion factor per kWh to the product of general wiring (50 g/m), the wiring distance (10 m) and the CO2 conversion factor per kilogram of wiring.