Climate Change Countermeasures

Calculation Method for CO₂ Emissions

CO₂ emissions are calculated as follows.

Activity type	Activity name	Calculation method
Scope1	Direct discharge (Energy origin CO₂)	Calculation formula: “fuel consumption” x “emissions intensity” Emission unit: Ministry of the Environment "Greenhouse Gas Emissions Calculation and Reporting Manual (Ver5.0) (February 2024)"
Scope1	Direct discharge (Greenhouse gases other than CO₂)	Calculation formula: "fuel consumption" x "unit calorific value" x "emission factor" Emission unit: Ministry of the Environment "Greenhouse Gas Emissions Calculation and Reporting Manual (Ver5.0) (February 2024)"
Scope2 location criteria	Indirect discharge	Calculation formula: "Electric power/steam consumption" x "Emissions intensity" Emissions unit: IEA Emissions Factors (2023)
Scope2 Market standard	Indirect discharge	Calculation formula: "Electric power/steam consumption" x "Emissions intensity" Emissions intensity: use one of the following Factors provided by electricity distributors, IEA Emissions Factors (2023)
Scope3	ー	ー
Category 1	Purchased products and services	Calculation formula: “Purchased amount for each material” x “Emissions intensity” Emissions unit: Ministry of the Environment's "Emissions unit database V3-4 for calculating greenhouse gas emissions, etc. of organizations through supply chains" "4 Stacked DB" or "5 Industry Federation table DB"
Category 2	Capital goods	Calculation formula: “Expenditure amount of capital goods” x “Emissions intensity” Emissions unit: Ministry of the Environment "Emissions unit database V3-4 for calculating greenhouse gas emissions of organizations through supply chains" "6 capital goods"
Category 3	Fuel- and energy-related activities not included in Scope 1 and 2	Calculation formula: “fuel/electricity consumption” x “emissions intensity” Emissions unit: Ministry of the Environment "Emissions unit database V3-4 for calculating greenhouse gas emissions of organizations through supply chains" "7 electricity / heat" or "IDEAv2.3 (supply chain greenhouse gas emissions for quantity calculation),”IEA Emissions Factors(2023)"
Category 4	Conveyance, distribution (upstream)	Calculation formula: “Expenditure amount for each mode of transport” x “Emissions intensity” Emissions unit: Ministry of the Environment's "Emissions unit database V3-4 for calculating greenhouse gas emissions, etc. of organizations through supply chains"
Category 5	Waste generated from operations	Calculation formula: “waste disposal amount (by type)” x “emissions intensity” Emissions unit: Ministry of the Environment "Emissions unit database V3-4 for calculating greenhouse gas emissions of organizations through supply chains" "9 waste [by type]"
Category 6	Business trip	Calculation formula: “Total business travel spent by mode of transportation” x “Emissions intensity” Emissions unit: Ministry of the Environment's "Emissions unit database V3-4 for calculating greenhouse gas emissions of organizations through supply chains" "13 employees" "11 Transportation expenses"
Category 7	Employer commute	Calculation formula: “ Total commuting spent by mode of transportation ” x “Emissions intensity” Emissions unit: Ministry of the Environment's "Emissions unit database V3-4 for calculating greenhouse gas emissions of organizations through supply chains" "14 employees [working days]" "11 Transportation expenses"
Category 8	Leased assets (upstream)	Not applicable
Category 9	Conveyance, distribution (downstream)	Not applicable
Category 10	Processing of sold products	Calculation formula: "Electricity consumption when installing in final product" x "Number of units sold" x "Emissions factor" Emissions unit: IEA Emissions Factors (2023)
Category 11	Use of sold products	Calculation formula: “Average power consumption of representative products1” x “lifetime usage time” x “sales volume” x “emissions intensity2” Emissions unit: IEA Emissions Factors (2023) 1 Select the model with the highest number of sales for each product type produced at each factory 2 Many of the NIDEC Group's products are incorporated into customer products and used, making it difficult to specify the country of use of the final product.
Category 12	Disposal of sold products	Calculation formula: “Weight of representative products sold” x “Emissions intensity” Emissions unit: Ministry of the Environment "Emissions unit database V3-4 for calculating greenhouse gas emissions of organizations through supply chains" "9 waste [by type]"
Category 13	Leased assets (downstream)	Not applicable
Category 14	Franchise	Not applicable
Category 15	Invest	Calculation formula: “Scope 1 and 2 emissions* of companies holding shares” x “Ownership ratio (%)” * Scope 1 and Scope 2 emissions of companies holding shares are based on data from the previous year due to data acquisition.