Reduction of CO₂ Emissions from Corporate Activities
CO₂ emissions from corporate activities primarily result from direct CO₂ emissions during product manufacturing at production sites and indirect CO₂ emissions from the use of fossil fuel-based energy in the manufacturing and processing phases. We aim to reduce these emissions by improving production efficiency, electrifying equipment, and substituting energy sources with renewable energy.
Expansion of Carbon-Neutral Factories
The starting point for reducing CO₂ emissions lies in improving production efficiency and implementing energy-saving measures.
Honda is actively working to reduce direct emissions and indirect emissions in corporate activities.
CO₂ Emissions Reduction through Three Key Technologies / Experience and Expertise:
1) Improving production efficiency and implementing energy-saving measures
2) Electrification of production equipment
3) Utilization of renewable energy
In the production process, Honda prioritizes improving production efficiency through process enhancements and implementing energy-saving measures. Additionally, the electrification of factory equipment is actively pursued during equipment upgrades or automation. Furthermore, to address CO₂ emissions from the use of fossil fuel-based electricity, we are working on reductions through the utilization of renewable energy, including the installation of solar panels on factory premises.
Carbon Neutrality Achieved at Saitama Factory Automobile Plant in the Fiscal Year Ended March 31, 2026
Honda is implementing CO₂ emissions reductions from its corporate activities using three key technologies / experience and expertise and defines production sites that have effectively achieved zero CO₂ emissions as “carbon neutral factories.” Honda has designated its Saitama Factory Automobile Plant as a leading facility for carbon neutrality and applied three key technologies / experience and expertise. Through these initiatives, the Company has established and has been operating Honda’s first carbon-neutral factory since the fourth quarter of the fiscal year ended March 2026. The technologies / experience and expertise accumulated through these efforts will be shared across other sites and expanded to achieve carbon neutrality tailored to regional characteristics. Honda will work towards realizing carbon-neutral factories at all its automobile production sites worldwide.
Technologies / Experience and Expertise (1): Improving Production Efficiency and Implementing Energy-Saving Measures
Honda believes that the key actions for reducing CO₂ emissions from its corporate activities are improving production efficiency and implementing energy-saving measures. To enhance production efficiency, we are reviewing production processes and reducing the number of steps and procedures involved in production.
For energy-saving measures, we are implementing practices such as the utilization of surplus heat, among other strategies, to reduce energy consumption and lower CO₂ emissions.
For example, we are advancing efforts to recover waste heat generated in the painting process and utilize it in other equipment. These efforts are not limited to the painting process and are continuously applied across various processes.
Technologies / Experience and Expertise (2): Electrification of Production Equipment
Electrifying equipment is an effective measure to reduce CO₂ emissions from production processes. For example, we have electrified gas-burning equipment used for drying, which has helped reduce CO₂ emissions from the process.
Additionally, by substituting the electricity used for electrified equipment with renewable energy sources instead of fossil fuels, we are achieving further reductions in CO₂ emissions.
Going forward, we will continue to focus on electrifying equipment tailored to the characteristics of our production processes.
Technology/Experience and Expertise (3): Utilization of Renewable Energy
To reduce CO₂ emissions from its corporate activities, Honda is actively promoting the global use of renewable energy, including solar and wind power generation. The amount of renewable electricity utilized* in the fiscal year ended March 31, 2026 was 2,830 GWh.
Honda is actively installing solar panels in spaces such as buildings, parking areas, and retention ponds within its premises. In addition, the Company is installing stationary storage batteries and other equipment in order to maximize the use of renewable energy generated on-site.
Honda is also advancing the procurement of renewable energy sourced from external suppliers.
As part of its efforts in Japan, Honda has signed a Virtual Power Purchase Agreement (PPA) with Rusutsu Wind LLC in September 2024 and has acquired non-fossil fuel certificates for electricity generated since December 2025.
Going forward, Honda will continue to promote and expand the global use of renewable energy by advancing renewable energy initiatives tailored to the conditions of each region.
Volume of renewable energy utilization, including self-consumption and procurement
-
Kumamoto Factory (Japan) -
No.2 Plant, Honda Motorcycle & Scooter India Pvt. Ltd. (India) -
Hosoe Outboard Engine Plant (Japan) -
Boiling Springs Wind Farm (North America)
Utilization of Carbon Credits
Honda is implementing various strategies and innovations to reduce and mitigate CO₂ emissions. However, even with these efforts, we anticipate that achieving complete zero CO₂ emissions may still be challenging. Therefore, regarding CO₂ emissions that cannot be avoided, we consider the use of high-quality carbon credits, among other options, as part of our strategy to address climate change.