Hapag-Lloyd has purchased 3,700 Maersk Container Industry (MCI) Star Cool Integrated reefers, of which just under a third are fitted with more environmentally friendly systems.
MCI will fit 1,000 containers with R513A refrigerant systems, which the company claims has a global warming potential (GWP) of less than 56% compared to the commonly used R134A system.
GWP is a measure of how much heat a greenhouse gas traps in the atmosphere, worked out by comparing the amount of heat trapped by a certain mass of gas to a similar mass of carbon dioxide.
Hapag-Lloyd’s senior director Niklas Ohling said: “Reducing carbon emissions is a key objective on our sustainability agenda and… we have ensured in earlier field trials with MCI that the cargo quality and energy efficiency remains unaffected by the new refrigerant.”
The 3,700 40 ft high containers are currently being produced and delivered from MCI’s manufacturing facilities in China and Chile.
Hapag-Lloyd also fitted 1,000 reefers with Controlled Atmosphere (CA) technology to expand its ExtraFresh and ExtraFresh Plus services.
CA technology is used to slow the ripening of fruits and vegetables, allowing them to be transported over longer periods.
Ohling said: “This service enables even extremely sensitive fruit such as blueberries and lychees to be transported to the desired level of quality and degree of ripeness.”
MCI’s chief commercial officer Søren Leth Johannsen said the manufacturer had been working with exporters and growers in Africa and South America to test its CA technology.
MCI said all Star Cool units produced after July 2017 can be delivered R513A-ready or R513A-optimised, which enables a conversion at any time without modifications.
Units produced prior to July 2017 can be adapted to run on the R513A system with only minor modifications.