Evergreen Line, a container shipping company, has purchased 2,000 PrimeLine refrigeration units from Carrier Transicold, a developer of heating, air-conditioning and refrigeration systems, to improve the energy efficiency of its refrigerated container fleet.

The new 40ft containers equipped with PrimeLine units, which will replace some of the oldest units in Evergreen’s 55,000-TEU capacity refrigerated fleet, are expected to deliver power savings and reduced carbon emissions, coupled with pull-down and cooling capacity for perishables items.

The PrimeLine unit, designed especially for shipping lines, uses the non-ozone depleting refrigerant, R-134a to provide deep-frozen functionality, has low global warming potential and is expected to save enough energy over their operating life to eliminate nearly 44,000 tons of carbon emissions.

Evergreen Line has chosen the PrimeLine units to expand its refrigerated service in the year ahead based on their ability to reduce carbon emissions and energy costs.

Carrier vice president of global container refrigeration Chiou Sin said that as the industry’s most energy efficient container refrigeration unit, the PrimeLine, featuring digital scroll technology, helps Evergreen Line improve lifecycle costs while reducing the environmental impact of its refrigerated containers.