Reducing Greenhouse Gas Emissions


Ratio of global sales to CO2 emissions (from global production sites *1): 30% improvement compared to FY2010 results.

  • *1 Global sales (millions of yen) / CO2 emissions from global production sites (t-CO2)

Our Stance

To help achieve a low carbon society, OMRON will strive to reduce CO2 emissions. Moreover, the OMRON Group, as a whole, will promote more efficient manufacturing operations aimed at minimizing energy and resource usage (Eco-Monozukuri).

FY2016 Overview

The ratio of the OMRON Group’s global sales to CO2 emissions from global production sites increased 20% compared to the fiscal 2010 level. This is the result of six years of measures implemented from fiscal 2011 to fiscal 2016. OMRON’s efforts to promote Eco-Monozukuri operations to reduce energy usage have consistently proved productive in reducing CO2 emissions.

Along with electricity deregulation in Japan, OMRON reviewed sources for purchasing electricity, and began to purchase power with a lower CO2 emission factor.

In fiscal 2017, OMRON has set out to address below environment-related social issues, in accordance with our identified sustainability issues and long-term goals. As such, OMRON will continuously strive to achieve an improvement of 30% or more in the ratio of global sales to CO2 emissions from global production sites in fiscal 2020 compared to the fiscal 2010 level.

CO2 Emissions from Global Production Sites

FY 2010
(Base year)
FY 2012 FY 2013 FY 2014 FY 2015 FY 2016
Carbon productivity (millions of yen/t-CO2) 3.31 3.21 3.60 3.83 4.12 3.96
Total CO2 emissions from production sites
(thousand t-CO2)
187 203 215 221 202 200
Sales (millions of yen) 617,825 650,461 772,966 847,252 833,604 794,201

CO2 emission factors used for the calculation of CO2 emissions

  • Starting in fiscal 2016, OMRON has been using the following publicized CO2 emission factors for electricity:
    Japan: Emission factors set forth for each power company by the Ministry of the Environment;
    China: Emission factors set forth for each power company by the National Development and Reform Commission;
    Other countries: Country-specific emission factors set forth by the International Energy Agency (IEA, 2011).
    For emission factors for fuels, OMRON uses factors set forth in the "Manual for Calculating and Reporting Greenhouse Gas Emissions" of the System to Calculate, Report, and Publish Greenhouse Gas Emissions based on the Act for Promoting Global Warming Countermeasures.

Reducing the environmental impact of the entire value chain

To assess the environmental impact of OMRON’s business activities as a whole, including its value chain, OMRON in fiscal 2013 began calculating Scope 1, 2, and 3 of the OMRON Group’s greenhouse gas (GHG) emissions. The calculation is based on the GHG Protocol, which is the most widely used international accounting and reporting tool.

OMRON Group’s Scope 1, 2, and 3 GHG Emissions (Fiscal 2016)

Scope Calculation methods Emissions
Direct emissions, including those from internal fuel combustion and industrial processes
Multiplying quantity of fuels used, emissions of non-energy origin and the emission factors 69,446 0.63%
Indirect emissions from consumption of purchased electricity, heat, or steam
Multiplying quantity of electricity used and the emission factors 201,628 1.82%
Other indirect emissions
1 Purchased goods and services Multiplying quantity of money spent of goods and services purchased and the emission factors 1,372,572 12.39%
2 Capital goods Multiplying quantity and distance of transportation, distribution and the emission factors 79,388 0.72%
3 Fuel and energy related activities Multiplying quantity of fuels, electricity used and the emission factors 194,679 1.76%
4 Upstream transportation and distribution Multiplying quantity and distance of transportation, distribution and the emission factors 25,494 0.23%
5 Waste generated in operations Multiplying quantity of waste generated and the emission factors 6,870 0.06%
6 Bussiness travel Multiplying quantity of money spent of bussiness travel and the emission factors 10,275 0.09%
7 Employee commuting Multiplying quantity of money spent of employee commuting and the emission factors 1,684 0.02%
8 Upstream leased assets Excluded
9 Downstream transportaion and distribution Estimation from category 4 2,294 0.02%
10 Processing of sold products Excluded
11 Use of sold products Multiplying quantity of annual energy consumption by end use of goods and services sold, service life, the shipping volume and the emission factors 9,101,928 82.16%
12 End-of-life treatment of sold products Multiplying quantity of waste disposal and treatment of products sold and the emission factors 11,239 0.10%
13 Downstream leased assets Excluded
14 Franchises Excluded
15 Investments Emissions from operation of investments 350 0.00%

Independent Assurance of GHG Emissions

To ensure the reliability of its data, the OMRON Group’s GHG emissions data (Scope 1, 2, and 3) underwent third-party review by Bureau Veritas Japan Co., Ltd. OMRON received a report that verified appropriate measurement, calculation, and reporting of GHG data.

Efforts to reduce CO2 emissions

As part of the OMRON Group’s effort to promote Eco-Manufacturing, OMRON’s Andon environmental information system*2 has been used by OMRON MALAYSIA SDN. BHD., a production site in Malaysia. The system is used to monitor water intake in addition to the previously monitored energy usage, temperature, humidity, differential pressure, and air flow. By drawing on received information, facility management staff and factory operators are working collaboratively to improve equipment operation. The Andon system is also used to monitor abnormalities on the manufacturing floor in order to enhance product quality.

The Andon system was also introduced to OMRON’s Yasu Factory toward the goal of improving equipment operation and enhancing energy-saving awareness among factory workers. The system extracts sources of waste and inefficiencies through constant monitoring of energy usage.

By detecting fluctuations in energy usage for each piece of manufacturing equipment, parameters for efficient use of energy and sources of waste and inefficiencies were identified. By taking improvement measures for detected problems, power consumption was reduced by 8-10% per piece of equipment.

OMRON is now working on the deployment of an energy control system*3 designed to automatically determine operation, stand-by, and stoppage of the related manufacturing line based on the status of power consumption by equipment. In fiscal 2016, this system was introduced to a molding line in China with the aim of reducing power consumption by 15% per piece of equipment.

  • *2 OMRON’s Andon environmental information system displays a variety of sensor-detected information relating to production, such as energy usage, temperature/humidity, differential pressure, and air flow, along with production data and product quality information. By assessing and diagnosing these information items and encouraging improvement, this system can help facilitate communication among all production-related staff members as they work to reduce power consumption, while improving productivity and product quality. Using the Andon environmental information for energy diagnostics and optimization at Ayabe plant, OMRON was received the Minister of Economy, Trade and Industry Prize in the 2012 Energy Conservation Grand Prix Program.
  • *3 When the production line is on stand-by, this system automatically switches the equipment to energy-saving operation or stops it. When the production line is on stand-by or is stopped, the system automatically extracts any unnecessary supply of compressed air, gas, cooling water, or electric power, as well as excessive air conditioning, exhaust, or lighting, in order to optimize energy usage.

Renewable Energy Usage

OMRON’s production site in the Netherlands has been purchasing renewable energy (wind power), while solar power generated by photovoltaic systems is used at five production sites. Combined, the amount of renewable energy usage totaled 1,629 MWh.

Non-CO2 Greenhouse Gas Usage

OMRON employs greenhouse gases except for CO2 for semiconductor manufacturing and cleaning of electronic components throughout the world.