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Effective reduction of CO2 at customers’ sites

We offer products, services, and solutions that help our customers reduce CO2 emissions at their sites. By FY2030, we aim to increase this effective reduction to 3.40 million metric tons of CO2. We strive to reduce society’s environmental impacts by providing automation equipment and systems for process optimization and stabilization, energy management, and other solutions to achieve a reduction in energy use and CO2 emissions by way of maintenance and services on those equipment and systems after delivery. We help to reduce environmental impacts throughout our customer’s product life cycles.

The total annual effective reduction of CO2 at customers’ sites in FY2025 was 3.06 million metric tons.*1 This is equivalent to about 1/325th of Japan’s CO2 emissions (approximately 994 million metric tons).
As part of a revision to the calculation method, we have adopted the statutory useful life for estimating reduction effects and expanded the scope of CO2 reduction activities to include the entire group. A third-party review of these initiatives confirmed their validity, resulting in a CO2 reduction effect of 340,000 tons compared to the previous year. Going forward, as part of our efforts related to business growth, we will continue to improve the scope and calculation methods for calculating CO2 reduction effects, aiming for further improvements in calculation accuracy.

*1 To quantitatively assess the contribution to the reduction of environmental impact, the effects were grouped in the three categories of 1) effect of automation, 2) effect of energy management, and 3) effect of maintenance and services to theoretically estimate the difference between adopting and not adopting azbil Group products, services, and solutions at customers' sites. The global reduction impact is partially based on our original methods. An independent third party reviewed and validated the estimation methodology.

Effective Reduction of CO2 at Customers' Sites
TOTAL 3.06 million metric tons of CO2/year

By Automation

We apply our measurement and control technologies to reduce environmental impact through our Building Automation, Advanced Automation, and Life Automation businesses.

Effective Reduction of CO2 at Customers' Sites
2.68 million metric tons of CO2/year

By BAS※2 and automated control in buildings

Estimation of CO2 reduction effects from actual figures for the previous 15-year period using the published specific energy consumption unit for each building type,based on total floor area.
※2 BAS：Building Automation Systems

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By optimal control of processes in manufacturing facilities

The amount of CO2 reduction achieved by the implementation of optimum process control is calculated from the actual volume of CO2 reduction for the previous 10-year period, using published CO2 emissions data.

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By The Micro Fog Lubrication Unit (made by Azbil TA Co., Ltd.)

The Micro Fog Lubrication Unit (made by Azbil TA Co., Ltd.), which generates and controls oil mist (called "fog"), can operate in conjunction with the rotation and operation of the lubricated target, thus reducing the consumption of excess compressed air. The CO2 reduction effect is estimated based on cumulative results over the past 10 years.

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Product information is available here.

By Energy Management

The azbil Group contributes to reduced environmental impact through its ENEOPT™ energy management solutions for saving electricity, general energy conservation, and CO2 reduction.

Effective Reduction of CO2 at Customers' Sites
0.33 million metric tons of CO2/year

By ESCO※3 and other energy management solutions

Estimation of actual volume of CO2 reduction for the previous 10-year period for each building .(actual measured values before and after implementation of ESCO services)
※3 ESCO：Energy Service Company

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By optimal and cooperative control of energy systems with optimization and visualization solutions

The amount of CO2 reduction achieved by the implementation of an energy conservation control system is estimated from the actual volume of CO2 reduction for the previous 10-year period, using published data or the actual CO2 emissions data before and after implementation.

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By Maintenance and BuildingManagement Services

Leveraging the knowledge and expertise developed at customers’ sites in Japan and overseas, the azbil Group provides unique value-added services that help customers reduce their environmental impact.

Effective Reduction of CO2 at Customers' Sites
0.05 million metric tons of CO2/year

By total energy management service for buildings

In our total energy management service for buildings, we estimate the CO2 reduction effect of introducing our Total Energy Management Service based on the floor area of the properties where the services are delivered.

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By management of measurement and control instruments and systems in customers’ facilities

The CO2 reduction achieved by Optimum process control and energy conservation control system maintenance is estimated.

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Method of Estimating CO2 Reduction by a BAS and automated control in buildings

We estimated, on the basis of the following, the CO2 reduction for new and old buildings resulting from the introduction of a BAS and automatic control system.


  1. Using the statutory useful life, we estimated the CO2 reduction effect for the year in question based on products sold by the azbil Group during the 15 years up to that year.
  2. We also estimated the amount of CO2 reduction if no Azbil Corporation products or solutions were used at our customers’ sites.
  3. We used our system database to estimate the total floor area of sites and to categorize the use of the space.
  4. We used the energy consumption data (in MJ/m²/year) for each building usage type from the “Data-base for Energy Consumption of Commercial Building (DECC)” maintained by the Japan Sustainable Building Consortium (JSBC).
    We converted the above energy consumption units into (kg-CO2/m²/year) using CO2 emission factors for electricity and heat (fuel).
    In addition, we used fuel-electricity ratios of 6:4, 7:3, and 8:2 for hospitals and medical facilities, hotels, and others, respectively, based on data from the Energy Conservation Center, Japan.
  5. We used the calorific value equivalents for electricity consumption and CO2 emission factors for heat that are specified by Japan’s energy conservation legislation. For energy weighting of buildings by area, and for CO2 emission factors for electricity, we used adjusted factors for electricity utilities that are released by the Ministry of Environment every year.
  6. We used energy consumption reduction rates from research entitled “Issuing Subsidies on Project Expense for Introduction of Highly Efficient Energy Systems into Dwelling/Building (Project on BEMS Introduction Support)” for 2006 to 2008.
  7. Estimation of our CO2 emission reduction in overseas markets uses figures for energy intensity that were set in consideration of the total floor space estimated from past installations, energy data for each country provided by the International Energy Agency, GDP, etc.

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Method of Estimating CO2 Reduction by optimal control of processes in manufacturing facilities

The amount of CO2 reduction achieved by introducing optimum process control at production sites was estimated in the following way.


  1. We estimated the CO2 reduction effect for the year in question based on the products sold by the azbil Group over the 10 years up to that year.

    2. * For facilities which have received any of Azbil’s maintenance services, where continued use is known, products sold before the above period are also included in the estimate.


  2. The amount of CO2 reduction if no azbil Group products or solutions were used at our customers’ sites was estimated.
  3. CO2 reduction data provided by the Ministry of Economy, Trade and Industry was used.
  4. The energy consumption reduction rate was estimated from an estimate of the reduction achieved by the various supply systems.

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Method of estimating the CO2 reduction effect of Micro Fog Lubrication Units that achieve reduced compressed air consumption

The CO2 reduction effect of the fog lubrication method was estimated based on the following considerations.


  1. The CO2 reduction effect was calculated based on the cumulative sales performance of the Micro Fog Lubrication Unit sold over the 10 years up to that year.
  2. We estimated the reduction in compressed air consumption achieved by adopting a fog lubrication method compared to using an oil-air lubrication method in our customers' machine tools.
  3. As the fog lubrication method has high transport performance that allows the equipment to be operated in accordance with the rotation and operation of the lubricated target, the calculation showed that it would reduce compressed air consumption compared to the oil-air lubrication method.
  4. The reduction in compressed air consumption was converted into a reduction in compressor power consumption, and the CO2 reduction was calculated using the CO2 emission factor.
  5. For CO2 emission factors, we used the values published by the Electric Power Council for a Low Carbon Society.

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Method of Estimating CO2 Reduction by ESCO and other energy management solutions

We estimated the CO2 reduction achieved by energy conservation equipment and systems introduced by our ESCO service based on the following.


  1. The CO2 reduction effect for the year in question was estimated based on the products sold by the azbil Group and others over the 10 years up to that year.
  2. Estimates of CO2 reduction are based on the amount of reduction implemented by Azbil Corporation’s ESCO business and the amount of business eligible for subsidies contingent upon reduction of energy use.
  3. The CO2 reduction we helped to achieve overseas was estimated using the amount of electricity saved through our energy conservation projects and the emission coefficient for electricity, which was taken from International Energy Agency data.

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Method of Estimating CO2 Reduction by optimal and cooperative control of energy systems with optimization and visualization solutions

The amount of CO2 reduction achieved by the introduction of optimum and cooperative energy control through optimization and visualization was estimated in the following way.


  1. We estimated the CO2 reduction effect for the year in question based on the products sold by the azbil Group over the 10 years up to that year.
  2. The amount of CO2 reduction if no azbil Group products or solutions were used at our customers’ sites was estimated.
  3. The CO2 reduction achieved by the U-OPT total operational optimization package for utility facilities was estimated using data generated in feasibility studies before the introduction of the software.
  4. The amount of CO2 reduction achieved by optimum compressor capacity control was estimated, using data provided by the Energy Conservation Center, Japan, including the average amount of CO2 emissions per Type 1 Designated Energy Management Factory, and the average percentage and reduction rate in the amount of power used by compressors.

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Estimation method of CO2 reduction effect in buildings using our total energy management service

We estimated the CO2 reduction effect of introducing the total energy management service in buildings based on the following considerations.


  1. The annual CO2 reduction effect for the year was estimated based on the total energy management service provided during the fiscal year.
  2. We estimated the CO2 reduction effect resulting from the introduction of the total energy management service for buildings that have adopted these services.
  3. For the total floor area of the site, we used values from our internal system data or publicly available data.
  4. The CO2 reduction rate was estimated based on the CO2 reduction results from the introduction of the total energy management service from FY2021 to 2023.

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Method of Estimating CO2 Reduction by management of measurement and control

The amount of CO2 reduction achieved by the management of measurement and control devices and systems at production sites was estimated in the following way.


  1. The CO2 reduction effect for the year in question was estimated based on the products sold by the azbil Group over the 10 years up to that year.
  2. The annual CO2 reduction effect was estimated based on the maintenance service provided during the fiscal year.
  3. The amount of CO2 reduction if no azbil Group products or solutions were used at our customers’ sites was estimated.

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