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Hitachi

Hitachi High-Technologies GLOBAL

In an effort to reduce emissions of CO2, which is one of the principal greenhouse gases, the manufacturing sites of Hitachi High-Tech Group companies are undertaking the following activities to reduce energy consumption such as electricity and fuel oil as part of their measures for prevention of global warming.

Third-Party Assurance

In order to enhance the credibility of this report, FY2016 figures marked with have received third-party assurance from KPMG AZSA Sustainability Co., Ltd. in accordance with the International Standard on Assurance Engagements (ISAE) 3000, ISAE 3410, and the Practical Guidelines for Assurance of Sustainability Information from the Japanese Association of Assurance Organizations for Sustainability Information.

Improvement in precision of Improvement Effects By Environmental Investment

We manage the introduction and operation of new facilities on a quarterly basis to increase the precision of improvement effects brought by environmental investment. Our emissions in FY2016 was 611 t-CO2 lower than the target for the fiscal year.
In FY2016, we established the Working Group for Considering Environmental Strategic Investment, consisting of representatives from each site. The group is working to identify the latent environmental effects of facilities that have been invested in, consider methods of calculating these effects, and increase the precision with which we judge environmental improvements when we set the targets. In addition, the group has also formulated Environmental Investment Guidelines in order to increase the ease and efficiency of environmental investment, resulting in an increased number of investments related to the reduction of CO2 emissions.
Since power generation accounts for the majority of CO2 emissions, we have worked particularly hard to reduce electricity consumption.

FY2016 Energy Saving Examples

At the Hitachi High-Tech Group, we have worked to introduce LED floor lighting in offices and communal areas, etc.
Furthermore, we periodically update our high-efficiency substations and air conditioning units, etc. at manufacturing sites. In FY2016, we achieved a reduction in electricity usage 1.7% in excess of our target.

Energy-Saving Activities at Manufacturing Sites

Energy-Saving Activities at Manufacturing Sites
Item Measure
Renewable energy Installation of solar panels on the Design Building in the Naka area
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 conditioners
Installation of hybrid fans
Air conditioning of spaces under floors
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 fiscal 2016, a total reduction of 42.9% was achieved in energy consumption per unit (base year: fiscal 2005) against the target of a total reduction of 36.6%.

Hitachi High-Tech Group will continuously take initiatives to reduce CO2 emissions by installing equipment and facilities of an energy-saving type, by efficiently using energy and by generating renewable energy.

Volume of CO2 emissions from domestic manufacturing sites of the Hitachi High-Technologies Group

CO2 Emissions per Unit of Revenue from Domestic Manufacturing Sites

  • * Reporting boundary: Manufacturing sites of Hitachi High-Technologies Corporation and domestic Group manufacturing companies
  • * 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)

Hitachi High-Tech Group (Domestic) Energy Usage (Crude Oil Equivalent)

  • * Reporting boundary: Hitachi High-Technologies Corporation (excluding branches) and domestic Group manufacturing companies (excluding Hitachi High-Tech Kyushu and Solution Labo Tokyo)
  • * Calculation method: Conforms to the stipulations of the Act on the Rational Use of Energy

Hitachi High-Tech Group (Domestic) Energy Usage Improvement Rate per Unit of Sales (Crude Oil Equivalent)

  • * Reporting boundary: Hitachi High-Technologies Corporation (excluding branches) and domestic Group manufacturing companies (excluding Hitachi High-Tech Kyushu and Solution Labo Tokyo)
  • * 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 year (FY2005) {(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 Hitachi High-Tech domestic Group companies}

Volume of CO2 Emissions outside Japan

  • * Reporting boundary: Overseas subsidiaries (in FY 2016, excluding Hitachi High-Tech AW Cryo, Hitachi High-Technologies Ireland and HHTA Semiconductor Equipment).
  • * 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 CO2 emission factors for purchased electricity, to which country-specific CO2 emission factors published by the International Energy Agency (IEA) are applied.
  • * An increase in the number of sites providing data is partially responsible for the increase in emissions figures.
  • * Some overseas subsidiaries have not yet provided data.

CDP* Evaluation

At Hitachi High Technologies, we have been responding to the CDP Climate Change Questionnaire since 2015.
In 2016, the method of scoring was revised, and the questionnaire now evaluates the progress level of companies seeking to take leadership. Our score in 2016 was “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 continue to engage in environmental conservation activities as a group, based on the Hitachi High Technologies Environmental Action Principles, while conducting appropriate disclosure of information, and working towards improvements in corporate value.

  • * CDP: The CDP (Carbon Disclosure Project) is 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.