Climate Change Initiatives

Even before we joined the list of Global Niche Top Companies, selected by the Japanese Ministry of Economy, Trade and Industry (METI), we have long been committed to operating our business in an environmentally responsible manner. However, climate change remains one of our top concerns even today. Some people in our position might think, “A company like ours has low environmental impact. What difference would our actions make?” But not Optex. We are not posturing—we are serious about reducing CO2 emissions. We disclose everything. We keep working on new initiatives.

30 million of our sensors are in operation around the world. Every little niche solution counts. We will make tangible contributions to solve global climate change issues through our daily activities, through raising employee awareness, and through developing environmentally-friendly products and solutions.

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.

>2022 VerificationStatements

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.