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 (Ver4.9) (April 2023)"

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 (Ver4.9) (April 2023)"

Scope2
location criteria

Indirect discharge

Calculation formula: "Electric power/steam consumption" x "Emissions intensity"
Emissions unit: IEA Emissions Factors (2022)

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 (2022)

Scope3

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 V3-3 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 goodsx Emissions intensity
Emissions unit: Ministry of the Environment "Emissions unit database V3-3 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 V3-3 for calculating greenhouse gas emissions of organizations through supply chains" "7 electricity / heat" or "IDEAv2.3 (supply chain greenhouse gas emissions for quantity calculation)

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 V3-3 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 V3-3 for calculating greenhouse gas emissions of organizations through supply chains" "9 waste [by type]"

Category 6

Business trip

Calculation formula: Number of employees x Emissions intensity
Emissions unit: Ministry of the Environment's "Emissions unit database V3-3 for calculating greenhouse gas emissions of organizations through supply chains" "13 employees"

Category 7

Employer commute

Calculation formula: Number of employees x Business days x Emissions intensity
Emissions unit: Ministry of the Environment's "Emissions unit database V3-3 for calculating greenhouse gas emissions of organizations through supply chains" "14 employees [working days]"

Category 8

Leased assets (upstream)

Calculation formula: Fuel consumption of leased vehicles x Emissions intensity
Emission unit: Ministry of the Environment "Greenhouse Gas Emissions Calculation and Reporting Manual (Ver4.9) (April 2023)"

Category 9

Conveyance, distribution (downstream)

Not applicable

Category 10

Processing of sold products

Not applicable

Category 11

Use of sold products

Calculation formula: power consumption of representative products*1 x lifetime usage time x sales volume x emissions intensity*2
Emissions unit: IEA Emissions Factors (2022)

*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 V3-3 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.

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