ESG

Environmental data

Amount of grid connected power purchased (after amortization): The amount of renewable energy certificates amortized is deducted from the amount of grid connected power purchased.

The scope of data collection includes all domestic and overseas bases.

The totals for Indian and French bases were temporarily excluded in FY2021 and FY2022 (about 0.3%) because the objectivity and completeness of the collected data of these bases have been determined to be problematic.
We started compiling data on results in fiscal 2023.

No heat was purchased.
Volumes of fuel purchased are aggregated based on lower heating value (J) and converted at a rate of 3,600 GJ, or 3.6 TJ, to 1 GWh.

“Total” includes the amount of purchased electricity generated from renewable sources but excludes the amount of electricity generated in-house (both non-renewable and renewable energy).

As the calorific value per area of gas varies by supplier and pressure varies by supply pipe, amounts are converted at a rate of 1,000 m3 at a pressure of 0℃1 to 45 GJ.

The scope of data collection includes all domestic and overseas bases.

The totals for Indian and French bases were temporarily excluded in FY2021 and FY2022 (about 0.3%) because the objectivity and completeness of the collected data of these bases have been determined to be problematic.
We started compiling data on results in fiscal 2023.

Greenhouse effect coefficient (GWP): Used AR5, the 100-year coefficient in the 5th IPPCC periodic report since fiscal 2021 in accordance with the COP24 international agreement. Used AR4 for fiscal 2013 to 2020.

The calculation of emissions other than CO2 uses the IPCC inventory & (default) emission factors (IPCC1996 Tier2c factors) in accordance with the calculation guidelines of the Act on Promotion of Global Warming Countermeasures.
In addition, emissions due to SF6 use (proprietary inventory) in high-voltage manufacturing processes have also been added.
The default values (90%, 95% for NF3 only) are used for the exclusion rate of exhaust gas elimination systems for the etching process of semiconductors.
However, in each inventory for product HFC refrigerant filling processes and SF6 insulating gas filling processes, actual measured values are used instead of default emission coefficients.

Since fiscal 2017, we have been undergoing third-party verification within the year following the year under review with respect to calculation methods, data sources, calculation processes, and companywide totals.

Calculation methods have been revised as follows since FY2019.
- In Category 8 (Upstream leased assets), the emissions from our company’s office spaces are excluded from SC1 and 2 amounts because these spaces are rental properties as tenants or leased assets.
- Calculation methods of Category 11 (Use of Sold products) have been revised as follows:
Calculation ranges are our company’s seven product families, which account for 80% or more of the entire emissions when all of our products are in use.
The calculation methods of emissions from our products during entire product lifetime as follows
Finished products: The number of delivered products × Total annual power consumption (fuel consumption) × Lifetime × CO2 coefficient
Intermediate products: The number of delivered products × Total annual power loss (energy loss of components) × Lifetime × CO2 coefficient
Finished products include thermal power generation as prime contracts, industrial electric heating, showcases and others, which end users use as finished products.
Intermediate products include turbines/generators as subcontracts, power semiconductors, motors, transformers and others, which are incorporated in our clients’ products which end users use.
- Third party evaluation will be performed for Category 1 to 8 and 11 but emission evaluation is expected to be performed around February of the next fiscal year.

The scope of calculations for categories 3 through 8 of Scope 3 were expanded Company-wide in fiscal 2019

Figures in parentheses are from the report for the previous fiscal year.

Renewable power: On-site photovoltaic power generation (PPA), off-site renewable energy power generation, and green electricity

Power consumption: Total amount of all power purchased + amount of photovoltaic (self-generated) power

Energy consumption: Total amount of all power purchased + amount of photovoltaic ( self-generated) power + amount of fuel consumed

Since fiscal 2022, we have been purchasing renewable energy and amortizing electricity certificates in Japan and abroad.

Figures above represent total shipment amounts of geothermal power generation systems, hydro power generation systems, biomass power generation systems, and solar power generation systems (including power conditioning sub-systems).

This is equivalent to 43.4 times our fiscal 2022 greenhouse gas emissions of 334,000 tons.

CO₂ emissions reductions are calculated by using the power generated during one year of operation of products shipped for each fiscal year after fiscal 2009 and converting that amount into an amount of CO₂ corresponding with the emissions that would have occurred should that amount of power have been generated through thermal power.

Total waste is the amount of unnecessary articles created during production activities (industrial waste, general waste, and valuable waste).

Ratio of waste sent to landfills is calculated as follows: Waste sent to landfills ÷ Total waste

In fiscal 2021, landfill waste increased due to difficulties in recycling fluorine sludge into cement overseas.

The scope of data collection includes all domestic and overseas bases.

The totals for Indian and French bases were temporarily excluded in FY2021 and FY2022 because the objectivity and completeness of the collected data of these bases have been determined to be problematic.
We started compiling data on results in fiscal 2023.

We started compiling data of thermal recycling included in amount of waste recycled in fiscal 2022.

Hazardous waste: Hazardous waste: Under Japan’s Waste Management and Public Cleansing Act, businesses are responsible for all of the industrial waste they generate (including the issuing of manifests and final disposal). This law does not distinguish between hazardous waste and non-hazardous waste. We consider hazardous waste to be harmful waste materials and we therefore retallied our figures according to the following types of waste: waste oil, waste acid and waste alkali, organic and inorganic sludge, and used activated carbon.

“Potable water” refers to drinkable tap water. “Industrial water” refers to water for industrial purposes that is not drinkable.

Total water intake in Japan is the sum of potable water purchased, industrial water purchased, and groundwater intake.

Volume of groundwater does not include groundwater used for soil cleanup, for agricultural purposes, or for melting snow.

The scope of data collection includes all domestic and overseas bases.

The totals for Indian and French bases were temporarily excluded in FY2021 and FY2022 because the objectivity and completeness of the collected data of these bases have been determined to be problematic.
We started compiling data on results in fiscal 2023.

Recycling rate is calculated as follows: Amount of water recycled ÷ Amount used (Intake amount + Amount recycled)

Sewerage includes the drainage sent to general sewage treatment facilities in industrial parks.
Rivers and waterways include direct discharge to sea areas, drainage that has seeped underground, and evaporation at factories. However, it does not include the amount of drainage from rainwater at factories.