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Hitachi

Hitachi High-Technologies GLOBAL

Basic Approach

Hitachi High-Tech Group is promoting systematic activities to reduce energy-induced CO2 emissions as a response to climate change. Specifically, we are making efforts to reduce CO2 emissions throughout the value chain through ongoing efforts such as use of renewable energy, promotion of environmental investment, improvement of manufacturing processes, and environmentally conscious design, aiming at the creation of a low-carbon society.

Independent Assurance

In order to enhance the credibility of this report, FY2018 figures marked with check mark icon have received independent assurance from KPMG AZSA Sustainability Co., Ltd. in accordance with the International Standard on Assurance Engagements (ISAE) 3000 and ISAE 3410.

Initiatives

Switching to a Menu of Low-Carbon Contract Power Supplies at Sites

Approximately 70% of our energy consumption in business activities is accounted for by domestic manufacturing sites. Aiming at efficient reduction of CO2 emissions, we have begun activities prioritizing a switch to power supply using renewable energy at our domestic manufacturing sites and a renewable energy mix, and will encourage overseas sites to also begin such activities.

Examples of a switch to low-carbon electricity in FY2018

Two of our manufacturing sites in Japan (Hitachi High-Tech Kyushu and Hitachi High-Tech Solutions Mito Division) have switched to low-carbon power supply using renewable energy.
We are continuing to develop our domestic manufacturing sites, and we will work toward gradually making the switch to low-carbon electricity at other domestic sites and overseas sites.

Promoting Energy Conservation with Environmental Investment and Process Reforms, and Promoting the Introduction of Internal Carbon Pricing*

Hitachi High-Tech Group established the Environmental Investment Guidelines in FY2016 to improve the ease and efficiency of environmental investment. Since the investments made in FY2017, these guidelines have contributed to the growth of environmental investment and improvement in the reduction effect in the amount of electricity consumed versus investment. In FY 2018, the amount of environmental investment declined 10% versus the previous fiscal year, but the reduction effect in electricity consumption versus investment was 4.4 times greater than that of the previous year. We are shifting to investments in initiatives with high cost-effectiveness. In addition, starting in FY 2019 we work to introduce Internal Carbon Pricing aimed at further encouraging environmental investment. We will apply it to the investments to be made after FY 2020.
We are also actively working to conserve energy in conjunction with our rationalization of manufacturing processes.

  • * Internal Carbon Pricing: A system in which a company places a price on its own carbon emissions in order to quantitatively clarify the impact on current and/or future business activities and to facilitate strategic decision-making, based on the premise that addressing climate change will present both costs and opportunities.

FY2018 Energy Saving Examples

At the Hitachi High-Tech Group, we have worked to introduce LED floor lighting in offices and communal areas, etc.
In addition, we are replacing transformers and air-conditioning units with highly efficient equipment, and improving manufacturing processes, at our manufacturing sites.

Energy-Saving Activities at Business Sites

Energy-Saving Activities at Manufacturing Sites
Item Measure
Renewable energy Installation of solar panels on building rooftops
Air Conditioning System Improvement in air conditioner operation mode for clean rooms
(Adjustment of the control accuracy for holidays and nighttime, discrete control of cleanliness for each compartment)
Installation of controllers of the energy-saving type in air conditioner
Installation of hybrid fans
Installation of underfloor air conditioning systems
Air Conditioning and Power utilization efficiency Less power loss through installation of phase advance capacitors
Installation of super-amorphous transformers
Installation of automatic power factor regulators
Reduction in current-on durations of products
Various equipment and facilities Installation of air conditioner compressors controlled by the number of air conditioner units in operation
Installation of inverter-controlled cooling water supply equipment
Lighting Installation of a system for automatic selection of illuminance
Installation of lights for automatic detecting the presence of persons
Installation of LED lights
Installation of inverter ballasts with luminaires
Fewer lights are lit and unnecessary lights are turned off when not needed.
Enlightenment activity Handbills are distributed and signboards are installed in energy-saving months.
Cool Biz and Warm Biz
“Green” walls on building windows and walls

In FY2018 our annual amount of CO2 emissions was 34,637 tons, against our target of 34,937 tons. However, regarding energy usage improvement rate per unit, we fell short of our annual target reduction of 49.1% (base year: 2005), achieving 45.6%. This was due to the effects of an increase in energy consumption caused by major changes to product composition planned for initial sales, deferred revenue, and other effects. (In the target control, 0.429 t CO2/MWh was used as a CO2 conversion factor.)

Based on these results, we will continue taking initiatives to reduce CO2 emissions and to save energy by installing equipment and facilities of an energy-saving type, by efficiently using energy, and by generating renewable energy.

Performance Data

Changes in Volume of CO2 Emissions in Japancheck mark icon

Graph: Changes in volume of CO₂ emissions in Japan

  • * Reporting boundary: Manufacturing sites of Hitachi High-Technologies and group manufacturing companies in Japan
  • * Calculation method: Conforms to the Manual for Calculation and Reporting of Greenhouse Gas Emissions (Ministry of the Environment and Ministry of Economy, Trade and Industry)

Changes in CO2 Emissions per Unit of Revenue in Japan

Graph: Changes in CO₂ Emissions per Unit of Revenue in Japan

  • * Reporting boundary: Manufacturing sites of Hitachi High-Technologies Corporation and group manufacturing companies in Japan
  • * Calculation method: Conforms to the Manual for Calculation and Reporting of Greenhouse Gas Emissions (Ministry of the Environment and Ministry of Economy, Trade and Industry)

Changes in Energy Usage (Crude Oil Equivalent)check mark icon

Graph: Changes in Energy Usage (Crude Oil Equivalent)

  • * Reporting boundary: All Hitachi High-Tech Group companies (The FY2018 figure includes Hitachi High-Tech Analytical Science and excludes Hitachi High-Technologies Ireland and H.H.T.A. Semiconductor Equipment Israel)
  • * Calculation method: Conforms to the stipulations of the Act on the Rational Use of Energy

Changes in Energy Usage Improvement Rate per Unit of Sales in Japan (Crude Oil Equivalent)

graph: Changes in Energy Usage Improvement Rate per Unit of Sales in Japan (Crude Oil Equivalent)

  • * Reporting boundary: Hitachi High-Technologies (excluding branches), group manufacturing companies (excluding Hitachi High-Tech Kyushu and Tokyo Solution Laboratory), and service companies in Japan
  • * Calculation method: Conforms to the stipulations of the Act on the Rational Use of Energy
  • * Energy usage improvement rate per unit: The rate of improvement over the base FY 2005 {(1 - base units of the relevant site for the relevant fiscal year/base units of the relevant site for the base year) x environmental impact at the relevant site for the base year calculated by group companies in Japan}

Changes in Volume of CO2 Emissions Outside Japancheck mark icon

Graph: Changes in Volume of CO₂ Emissions Outside Japan

  • * Reporting boundary: Overseas subsidiaries (The FY2018 figure includes Hitachi High-Tech Analytical Science and excludes Hitachi High-Technologies Ireland and H.H.T.A. Semiconductor Equipment Israel)
  • * Calculation method: Conforms to the Manual for Calculation and Reporting of Greenhouse Gas Emissions (Ministry of the Environment and Ministry of Economy, Trade and Industry), except for emission factors for purchased electricity, for which factors for 2015 published by the International Energy Agency (IEA) in 2017 are used for calculating the FY2018 figure, and those for 2005 published by the IEA in 2010 are used for figures for FY2014-2017. (If IEA factors for 2005 were used for the calculation of the FY2018 figure, CO2 emissions would have been 10,349 tons.)

CDP*1 Evaluation

At Hitachi High-Tech Group, we have been responding to the CDP Climate Change Questionnaire. In FY2018, we received a score of "C", which indicates an awareness of the environmental burdens and risks associated with our business and of their effects. The Hitachi High-Tech Group will disclose information in line with the disclosure framework set up by the Task Force on Climate-Related Financial Disclosures*2 and work toward improvements in corporate value, while making effective efforts to address climate change risks, in particular.

  • *1 CDP: A UK-based independent non-profit organization. It receives requests from investors around the world, and investigates, evaluates, and discloses information relating to companies’ effects on climate change, water security, and forests.
  • *2 Established by the Financial Stability Board (FSB) with members from central banks and financial regulatory authorities of major countries.