Nikken Rental Automates CO₂ Emissions Calculation for Construction Machinery

On September 16, 2025, Nikken Rental Co., Ltd., headquartered in Minato-ku, Tokyo, announced that its new service for visualizing CO₂ emissions has been effectively deployed across various construction sites, especially in public civil engineering projects. This innovative service, launched in October 2024, automates the previous manual calculations of CO₂ emissions, while providing real-time management of construction machinery operations. This dual capability supports both environmental measures and operational efficiency in the building and civil engineering sectors, as well as electrical and facility construction work.

How the CO₂ Emission Visualization Works

The service employs telematics sensors installed in construction machinery to detect the engine's operational status (ON/OFF). This data is transmitted every ten minutes and during the engine ON/OFF events. A cloud-based system then calculates the CO₂ emissions based on the running hours of the machinery, the average fuel consumption per machine, and the CO₂ emission factor of the fuel used. Users can visualize CO₂ emissions on a comprehensive dashboard, allowing for improved environmental management.

Dashboard for Each Site

The service features a site-specific dashboard, making it easier for operators to monitor operations, track progress, and manage resources efficiently across different locations.

Key Features of the Service

1. Automatic CO₂ Emission Calculation: Utilizing data such as average fuel consumption and operating hours, the system automatically calculates the CO₂ emissions for each site. This not only streamlines report generation but also serves as foundational data for effective environmental strategies.

2. Support for Carbon Offsetting: Based on the calculated CO₂ emissions, Nikken Rental also aids companies in their carbon offsetting efforts, proposing methods tailored to their objectives and budgets, thereby supporting a transition toward decarbonized management.

3. Real-time Operations and Location Visualization: The system provides real-time visibility into the operational status and locations of individual machines, helping to minimize unnecessary operating hours. This enables optimal deployment of personnel and equipment.

4. Versatile Site Compatibility: The design of the service is highly adaptable, allowing seamless integration across various construction sites including residential, civil engineering, electrical work, facility installation, and plant construction, flexibly meeting site-specific needs.

5. Wi-Fi Communication Support: In addition to conventional LTE connectivity, the service also supports Wi-Fi communications. This is particularly useful in environments where LTE signals are weak, such as tunnels, underground, or mountainous areas, guaranteeing stable data transmission and consistent service availability.

Future Developments

To enhance usability and scalability, Nikken Rental plans to introduce additional features, including:
1. Dashboard Customization: Future updates will allow companies to customize dashboard display items and layouts according to their specific needs, enabling optimized information management aligned with operational metrics and business processes.

2. Emission Goal Setting and Alert Features: Functionality to set CO₂ emission targets for specific sites or project timelines will be added. This feature will facilitate progress visualization and send alerts in case of forecasted exceedances, assisting in prompt corrective actions.

Nikken Rental aims to strengthen collaboration with local governments and construction firms to further advance the digital transformation (DX) of construction sites and contribute to CO₂ emissions reduction and carbon offsetting efforts. Insights from customers will guide the development of even more advanced features. The Nikken Rental Group remains committed to the theme of 'Contributing to a Circular Society through Rental,' striving to reduce environmental impact and work towards building a sustainable society alongside economic growth.