1. What is the OOCL Carbon Calculator?
The calculator is designed to assist OOCL customers in measuring the carbon dioxide (CO2) emissions in their supply chain. The OOCL Carbon Calculator demonstrates OOCL’s commitment to environmental care and will help our customers achieve the lowest possible carbon footprint in their end-to-end supply chain.

2. There are so many carbon calculators on the market. How is this one unique?
OOCL’s carbon calculator is the first emissions calculator of its kind to offer multiple shipment searches, and full intermodal data using actual emissions figures from OOCL ships. It offers customers a user-friendly interface, allowing them to generate excel reports according to their preferred shipment.

3. How accurate is the data included in this calculator?
The vessel data is collected from actual emissions figures from OOCL ships. The land-based intermodal data is collected from the Clean Cargo Working Group and OOCL’s regional office operations management, as well as publicly available sources. The materiality, completeness and accuracy of the processes, data and methodology were verified by PolyU (Department of Logistics and Maritime Studies).

4. What is the difference between TON and TEU calculations?
The OOCL CO2 Index indicates the average carbon dioxide (CO2) emitted per operating unit measured in kg CO2/TEU-km or kg CO2/TON-km. For vessels, indices are calculated using actual fuel consumption, actual distance sailed and nominal vessel cargo capacity. Cargo capacity is represented by two different unit systems, TEU (Twenty-foot Equivalent Unit) and TON (cargo weight), thus translating to two options for users to calculate emissions.

Please note that the two results cannot be compared ‘apples to apples’ as they are two different unit systems of measuring capacity. For measurements by TEU, OOCL has based the results on the average nominal TEU capacity of each service loop's deployed vessels. TON measurement results refer to the Deadweight tonnage of each service loop's deployed vessels.  However, if users wish to calculate their TEU figure based on an average weight assumption, the average weight is 12.4 metric tons per TEU based on OOCL ships. The second phase of development of the calculator, which will be ready by end-May, will provide exact TEU weight assumption measurements for each service lane.

 5. How often will the data be updated?
OOCL will refresh the data on a quarterly basis.

6. Is the calculation data based on slow steaming or the regular proforma schedule?
When proforma distance is used, it is based on Q1 proforma distance tables. So, it depends whether at that time the schedule is slow steaming or regular. Please contact OOCL for more details on a particular schedule.

7. How do you obtain emissions data for port pairs not served by OOCL ships?
All ocean transport results are based on OOCL data (except for some public feeder/ barge/ intermodal feeder services). For those routes that are not served by OOCL ships, we have used emission factors according to ship size. Eg. if an Intra Asia service is run by 8 Grand Alliance partner ships, for example 6 x 7000 TEUs and 2 x 4000 TEUs, OOCL emissions data matching the corresponding class of ships would be used to calculate the emission factor of that service, for the purposes of this calculator.