Data Collection
The Yamaha Motor Group's environmental data for the past five years.
1. Global energy consumption
Energy consumption by region
| Area | Unit | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Asia | GJ | 2,354,586 | 2,506,222 | 2,424,036 | 2,288,567 | 2,345,757 |
| Europe | 168,458 | 161,288 | 159,293 | 157,058 | 146,960 | |
| North America | 596,713 | 614,710 | 604,373 | 607,083 | 630,228 | |
| Japan | 1,874,909 | 1,941,624 | 1,841,610 | 1,640,226 | 1,671,108 | |
| Oceania | 14,389 | 12,058 | 9,287 | 9,759 | 16,464 | |
| Central and South America | 169,706 | 194,385 | 282,500 | 283,114 | 278,797 | |
| China | 215,155 | 210,445 | 200,631 | 167,813 | 13,958 | |
| Africa | 90 | 263 | 417 | 984 | 810 | |
| Total | 5,394,006 | 5,640,995 | 5,522,147 | 5,153,604 | 5,104,082 External Assurance |
Energy consumption by type
| Item | Unit | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Electricity purchased | GJ | 2,448,759 | 2,533,483 | 2,612,952 | 2,504,568 | 2,451,552 |
| Renewable energy generation | 0 | 93,314 | 124,643 | 132,370 | 221,901 | |
| Kerosene | 7,025 | 7,170 | 6,865 | 7,352 | 7,145 | |
| Heavy oil A | 89,371 | 90,349 | 85,785 | 73,538 | 73,907 | |
| LPG | 569,120 | 591,119 | 505,654 | 420,671 | 383,873 | |
| Butane | 11 | 11 | 17 | 5 | 3 | |
| City gas (Japan) | 631,144 | 634,019 | 543,821 | 472,902 | 477,429 | |
| Natural gas (other than Japan) | 1,393,431 | 1,414,532 | 1,271,639 | 1,161,561 | 1,078,867 | |
| Biogas | 13,154 | |||||
| Gasoline | 154,078 | 165,413 | 243,603 | 261,516 | 284,195 | |
| Bioethanol-blended gasoline | 3,032 | 7,492 | 2,307 | 5,171 | 3,574 | |
| Light oil | 71,447 | 72,881 | 110,529 | 99,727 | 95,458 | |
| Bioethanol-blended light oil | 11,508 | 17,162 | 675 | 414 | 522 | |
| Hydrogen | 0 | 0 | 0 | 1 | 1 | |
| Industrial steam | 0 | 0 | 0 | 1,295 | 402 | |
| Non-industrial steam | 840 | |||||
| Hot water | 15,049 | 13,951 | 13,656 | 12,513 | 11,258 | |
| Waste oil | 31 | 99 | 0 | 0 | 0 | |
| Waste plastic | 0 | |||||
| Total | 5,394,006 | 5,640,995 | 5,522,147 | 5,153,604 | 5,104,082 External Assurance |
- Scope
: Major facilities of Yamaha Motor and its 139 consolidated subsidiaries
The scope has been changed to include Yamaha Motor and its 139 consolidated subsidiaries, effective in 2025, to align with the consolidated financial statements. Furthermore, since the impact of this revision on prior years is minimal, no retroactive adjustments were made to prior-year data. : Excluding energy consumption by on-site suppliers
: Excluding acetylene
Energy consumption ＝ ∑(Fuel consumption amount × Unit heat generation amount) + ∑(All electricity usage amount, including renewable energy × 3.6MJ/kWh) + Σ (Purchased heat amount × Unit heat generation amount)
Coefficients referred to: 3. Conversion factors used for global energy consumption and CO2 emissions
In principle, figures are rounded off to the nearest whole number. Therefore, the total does not necessarily match the sum of each item.
2. Global CO2 emissions
| Area | Unit | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Scope 1 | |||||
| Asia | t-CO2 | 69,476 | 65,911 | 59,354 | 61,684 |
| Europe | 4,721 | 5,131 | 4,916 | 4,130 | |
| North America | 17,014 | 16,712 | 17,839 | 20,191 | |
| Japan | 53,495 | 46,415 | 41,142 | 40,763 | |
| Oceania | 577 | 397 | 423 | 784 | |
| Central and South America | 3,906 | 4,870 | 5,512 | 5,970 | |
| China | 5,760 | 5,523 | 4,439 | 210 | |
| Africa | 0 | 0 | 63 | 55 | |
| Total | 154,950 | 144,959 | 133,689 | 133,786External Assurance | |
| Scope 2 | |||||
| Asia | t-CO2 | 201,767 | 190,393 | 187,286 | 176,842 |
| Europe | 2,191 | 2,744 | 2,126 | 1,640 | |
| North America | 28,317 | 25,997 | 24,723 | 24,058 | |
| Japan | 59,034 | 19,627 | 15,703 | 9,838 | |
| Oceania | 572 | 559 | 582 | 588 | |
| Central and South America | 3,468 | 4,423 | 1,121 | 4,833 | |
| China | 15,017 | 13,927 | 9,320 | 1,455 | |
| Africa | 12 | 29 | 5 | 1 | |
| Total | 310,376 | 257,699 | 240,866 | 219,254External Assurance | |
Scope 1 (Direct emissions from fossil energy–derived CO2), Scope 2 (Energy-related indirect CO2 emissions)
- Scope
: Major facilities of Yamaha Motor and its 139 consolidated subsidiaries
The scope has been changed to include Yamaha Motor and its 139 consolidated subsidiaries, effective in 2025, to align with the consolidated financial statements. Furthermore, since the impact of this revision on prior years is minimal, no retroactive adjustments were made to prior-year data. : Excluding energy consumption by on-site suppliers
: Excluding acetylene
In principle, figures are rounded off to the nearest whole number. Therefore, the total does not necessarily match the sum of each item.
| Category | Unit | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Scope 3 | |||||
| 01.Purchased products and services | t-CO2 | 2,344,250 | 2,280,824 | 1,929,731*1 | 1,309,488*5 |
| 02.Capital goods | 426,845 | 453,242 | 502,118 | 469,132 | |
| 03.Energy-related activities | 80,225 | 80,133 | 75,712 | 85,455*3 | |
| 04.Transport and delivery (upstream) | 445,725 | 413,941 | 404,670 | 294,504 *3 | |
| 05.Waste materials emitted by businesses | 7,839*1 | 8,378*1 | 6,569*1 | 7,740*1 | |
| 06.Business trips | 4,339 | 3,198 | 4,816*1 | 3,651*1 | |
| 07.Employees' commuting | 7,858 | 9,115 | 9,000*1 | 13,085*1 | |
| 08.Leased assets (upstream) | Included in Scope 1 and 2 | ||||
| 09.Transport and delivery (downstream) | －*2 | －*2 | －*2 | ー*2 | |
| 10.Processing of products sold | －*2 | －*2 | －*2 | ー*2 | |
| 11.Use of products sold | 26,506,968 | 24,784,905 | 53,456,678*4 | 53,311,873*4 External Assurance |
|
| 12.Disposal of products sold | 65,881 | 60,176 | 62,190 | 60,693 | |
| 13.Leased assets (downstream) | ー*2 | ー*2 | ー*2 | ー*2 | |
| 14.Franchises | ー*2 | ー*2 | ー*2 | ー*2 | |
| 15.Investments | ー*2 | ー*2 | ー*2 | 1,575 | |
| Total | 29,889,930 | 28,093,911 | 56,451,485 | 55,557,196 | |
| Scope 1, 2, 3 Total | 30,355,256 | 28,496,569 | 56,826,040 | 55,910,236 | |
*1 Scope of aggregation is Yamaha Motor Co., Ltd. (non-consolidated) only. Past years have been revised due to changes in the calculation method.
*2 As the data supporting the calculation basis is currently unavailable, this item is excluded from the scope of calculation.
*3 The emission factors used for calculation have been changed following the Ministry of the Environment’s update of its Emission Unit Value Database.
*4 From the 2024 results, conditions such as lifetime activity (annual travel distance and lifetime usage period) have been changed from Yamaha’s “internal survey results”
*5 From the 2025 results, calculated by applying emission factors to the transaction value of products and services purchased by Yamaha Motor Co., Ltd. and to the weight of constituent materials used in all motorcycles produced and sold by the Company.
■ Calculation Method
Other indirect emissions are calculated using the Emission Unit Value Database (ver. 3.6) as per the Ministry of the Environment's Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain (ver. 2.8).
■ Activity Data
Cat.1: Weight of constituent materials in motorcycles (excluding indirect materials), Cat.2: Capital expenditure amount, Cat.3, Cat.8, Cat.11: Energy consumption, Cat.4: Logistics amount and warehouse rent (excluding activity data from suppliers), Cat.5: Disposal volume by type, Cat.6: Total number of business trip days, Cat.7: Transportation expenses by category / Private vehicle travel distance, Cat.12: Weight of products sold (excluding packaging materials), Cat15: Total assets under management (AUM) at Yamaha Motor Ventures (YMV)
3. Conversion factors used for global energy consumption and CO2 emissions
Conversion factors (variable factors) used for 2025 results in the Environmental Plan 2050
* With regard to actions relating to the Environmental Plan 2050, results for 2019 onwards are calculated using variable factors and therefore cannot be compared with past data.
| Item name | Common unit | Calorific value per unit factor | CO2emission factor |
|---|---|---|---|
| GJ/Common unit | t-CO2/Common unit | ||
| Electricity purchased | MWh | 3.6 | *Note 1 |
| Renewable energy generation | MWh | 3.6 | ー |
| Kerosene | kL | 36.5 | 2.5 |
| Heavy oil A | kL | 38.9 | 2.75 |
| LPG | ton | 50.1 | 2.99 |
| Butane | ton | 49.7 | 3.03 |
| City gas (Japan) | 1000Nm3 | 45 | 2.24 |
| Natural gas (other than Japan) | 1000m3 | 38.4 | 1.96 |
| Biogas | Mwh | 3.6 | 0.00022 |
| Gasoline | kL | 33.4 | 2.29 |
| Bioethanol-blended gasoline | kL | 33.4 | By mixture ratio |
| Light oil | kL | 38 | 2.62 |
| Bioethanol-blended light oil | kL | 38 | By mixture ratio |
| Hydrogen | ton | 142 | 0 |
| Industrial steam | GJ | 1.02 | 0.06 |
| Non-industrial steam | GJ | 1.36 | 0.06 |
| Hot water | GJ | 1.36 | 0.112 |
| Waste oil | kL | 40.2 | 2.64 |
| Waste plastic | ton | 28.71 | 2.76 |
*Note 1
Domestic: Adjusted emission factors by electric utility for the most recent year announced by the Ministry of the Environment. Overseas: As a rule, emission factors by electric utility .
Otherwise, CO2 emission factors by country announced by the International Energy Agency (IEA)
Emission factors for 2020 as found in "Emission Factors 2022".
