* Note: Direct emissions stem from refrigerant leakage and disposal; indirect emissions scale with energy use and the carbon intensity of electricity supplying the reefers.
* Note: To know more about TFA read the article: TFA: what is it, how much is formed from F-gases, and what are its environmental effects
* Notes: Emissions are calculated based on the selected product, reefer container, route and vessel parameters. Direct emissions stem from refrigerant leakage and disposal; indirect emissions scale with energy use and the carbon intensity of electricity supplying the reefers.
* Notes: Emissions are calculated based on the selected product, reefer container, route and vessel parameters. Direct emissions stem from refrigerant leakage and disposal; indirect emissions scale with energy use and the carbon intensity of electricity supplying the reefers.
* Notes: Cost are calculated based on the selected product, reefer container, route and vessel parameters.
* Notes: Cost are calculated based on the selected product, reefer container, route and vessel parameters.
* Notes: Comparison is calculated based on the selected product, reefer and container parameters The calculations allows the user to compare the difference in cost using a specific refrigerant per kg of CO2e emitted. By way of example, replacing R404A with R744 represents a significant mitigation measure due to the large difference in their global warming potentials (GWPs) and atmospheric lifetimes, and it avoids greenhouse gas emissions at a cost of approximately USD 1,419 per kilogram of CO2e avoided.
* Notes: Comparison is calculated based on the selected product, reefer and container parameters. The calculations allow users to compare the cost differences associated with using specific refrigerants, expressed in terms of CO2e emissions, valuated according to an expected carbon tax and the annual procurement cost differences among refrigerants.
The objective for this tool is to estimate the environmental and economic performance of refrigerated maritime transport. By combining technical parameters of the product, container, vessel, and route. The tool provides a detailed breakdown of greenhouse gas (GHG) emissions, TFA (PFAS) emissions, and operating costs. It also calculates cost-efficiency indicators, such as the marginal cost of CO₂ abatement, to support decision-making processes. The tool is based on a previous work by the Wageningen University Food & Biobased Research, subcontracted by the GIZ Greener Reefers Project.

Partners: (a) Kuehne Climate Center, (b) Kühne Logistics University (KLU), (c) Hapag‐Lloyd Center for Shipping & Global Logistics (CSGL), (d) Deutsche Gesellschaft für Internationale Zusammenarbeit GmbH (GIZ), financed by the German Federal Ministry for the Environment, Climate Action, Nature Conservation and Nuclear Safety (BMUKN) in the context of the International Climate Initiative (IKI)

Contact: cristiam.gil@klu.org,  gordon.wilmsmeier@klu.org

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