Reducing Greenhouse Gas Emissions


Ratio of global sales to CO2 emissions (from global production sites *1): 30% improvement compared to FY2010 results. *2

  • *1 Global sales (millions of yen) / CO2 emissions from global production sites (t-CO2)
  • *2 Environmental Vision "Green OMRON 2020" and environmental goals set in accordance with the "VG2020" long-term vision (FY2011 - FY2020).
  • * FY2020 goal for the ratio of global sales to CO2 emissions. OMRON committed its participation in Science Based Targets Initiative in July 2018, and revised FY2020 target to absolute amount, back-casting from FY2050 goal. Click here for more information.

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).

FY2017 Overview

The ratio of the OMRON Group’s global sales to CO2 emissions from global production sites improved by 27.5% compared with the FY2010 level. This is the result of seven years of initiatives from FY2011 to FY2017. OMRON’s efforts to promote Eco-manufacturing to reduce energy usage have consistently proved productive in reducing CO2 emissions.

In FY2017, OMRON set environment-related social issues to address, together with the company's identified sustainability issues and long-term goals.

CO2 Emissions from Global Production Sites

(Base year)
FY2013 FY2014 FY2015 FY2016 FY2017
Carbon productivity (millions of yen/t-CO2) 3.31 3.60 3.83 4.12 3.94 4.22
Total CO2 emissions from production sites
(thousand t-CO2)
187 215 221 202 202 204
Sales (millions of yen) 617,825 772,966 847,252 833,604 794,201 859,982

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 (FY2017)

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 65,390 0.51%
Indirect emissions from consumption of purchased electricity, heat, or steam
Multiplying quantity of electricity used and the emission factors 193,774 1.52%
Other indirect emissions
1 Purchased goods and services Multiplying quantity of money spent of goods and services purchased and the emission factors 1,701,492 13.34%
2 Capital goods Multiplying quantity and distance of transportation, distribution and the emission factors 120,053 0.94%
3 Fuel and energy related activities Multiplying quantity of fuels, electricity used and the emission factors 206,286 1.62%
4 Upstream transportation and distribution Multiplying quantity and distance of transportation, distribution and the emission factors 35,633 0.28%
5 Waste generated in operations Multiplying quantity of waste generated and the emission factors 6,664 0.05%
6 Business travel Multiplying quantity of money spent of business travel and the emission factors 11,781 0.09%
7 Employee commuting Multiplying quantity of money spent of employee commuting and the emission factors 1,750 0.01%
8 Upstream leased assets Excluded
9 Downstream transportation and distribution Estimation from category 4 3,207 0.03%
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 10,326,117 80.94%
12 End-of-life treatment of sold products Multiplying quantity of waste disposal and treatment of products sold and the emission factors 84,835 0.67%
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, including source data, or evidence.

Category Verification source data (evidence) Verification standard
Scope 1
and Scope 2
-Purchased volume on invoices: Electricity and gas (city gas, LPG, and LNG)
-Consumption volume of fossil fuels managed by internal systems, such as heavy fuel oil and heating oil
Greenhouse gases - Part 3:
Specification with guidance for the validation and verification of greenhouse gas assertions 
Scope 3 -Activity data of category elements managed by internal systems
-Emission factors by activity datum

Efforts to reduce CO2 emissions

OMRON has been working on Eco-manufacturing, making the best use of limited resources for sustainable manufacturing.

In fiscal 2017, as Eco-manufacturing initiatives, OMRON worked on facility improvement, facility investment, and introduction of optimization equipment to production sites. Examples are as follows.

Facility improvement

(1) SHANGHAI OMRON CONTROL COMPONENTS Co., Ltd., a production site in China improved energy efficiency of air conditioners and repaired air leakage of compressors, to reduce electricity consumption by 2,400,000 kWh, or 1,687 t-CO2 a year.

(2) OMRON has been working on the introduction of energy control system*3 designed to automatically determine operation, stand-by, and stoppage of the related manufacturing lines based on the status of power consumption by equipment. The system was introduced to a molding line in China.

Facility investment

(1) SHANGHAI OMRON CONTROL COMPONENTS Co., Ltd., a production site in China, added inverters to the equipment.

(2) P.T. OMRON MANUFACTURING OF INDONESIA, a production site in Indonesia, introduced and is utilizing building automation systems.

(3) OMRON Aso Co., Ltd., a production site in Japan, introduced and is utilizing central air conditioning management systems.

In total, the 3 sites reduced electricity consumption by 180,000 kWh, or 107 t-CO2 a year.

Introduction of optimization equipment to production sites

Two production sites in Japan, OMRON Kusatsu Office and OMRON Relay & Devices Takeo Office, introduced energy transformation equipment*4 in order to optimize energy use at each site. With the equipment that can change heating oil/ gas to electricity, the two sites reduced GHG emissions by 540 t-CO2/year in total.

  • *3 When the production line is on stand-by, this system automatically switches the equipment to energy-saving operation or stops it. Energy-saving operation here means to automatically detects 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.
  • *4 Energy transformation is to change energy from one form to another to reduce CO2 emissions. OMRON is transforming energy sources from heating oil, gas, and other sources to electricity, while introducing facilities that are more energy efficient and energy-saving.

Renewable Energy Usage

Five production sites in Japan and China utilize renewable energy generated by solar power systems. The amount was 765 MWh, equivalent to 504 t-CO2.

Usage of Greenhouse Gas other than Energy-Oriented CO2

OMRON monitors the usage of GHG other than energy-oriented CO2.