Maersk develops reefer control software to save on energy, operating costs

Maersk develops reefer control software to save on energy, operating costs

StarConomy reefer control software designed by Maersk Container Industry (MCI), in conjunction with fruit multinational firm Dole, supports reefer container operators by allowing them to maximize the value of their refrigerated cargoes in MCI’s Star Cool units.

The software’s aim is to reduce operating costs and ultimately meet sustainability objectives to lower CO2 emissions.

If a typical fruit multinational operating its own fleet of four vessels with 500 reefers each were to upgrade to the software, the annual financial savings on a single route, such as Ecuador to the United Kingdom, would be more than US $2 million. For a container line with a six-vessel service from Ecuador to Russia, also with 500 plugs, the annual savings would be an estimated US $3.2 million.

StarConomy can be installed on all new Star Cool units, and a simple software update can make it available on all existing Star Cool units installed in operations of more than 40 operators. MCI conducted the field test on Dole’s weekly South America-to-Europe route.

“Dole has strong focus on corporate responsibility and sustainability. This is reflected in our approach to water management, soil conservation, and our carbon footprint, for example,” said Karina Rodriguez, equipment manager of Dole. “These commitments also extend to our cold chain. When it comes to reefer container transport, we preserve and transport the fruit safely using as little energy as possible, thus reducing our carbon footprint. To take the next leap in this field, Dole worked with Star Cool in developing and field-testing the innovative StarConomy software that we are now using in all Star Cool reefers in our global operations.”

With the new software, MCI’s R&D team in Denmark answered the protracted challenge of maintaining the same precise temperature control inside the reefer while matching airflow to the varying requirements of specific cargoes. StarConomy’s key feature is its ability to control both compressor and fan speed at the same time.

“The StarConomy software begins by rapidly cooling the produce with the fans at full speed. When the temperature set point is reached, fan speed is reduced and energy optimization can begin,” said Morten Nylykke, general manager, refrigeration technology at MCI. “StarConomy has proved to meet the needs of Dole, a long-term customer, and we are looking forward to offering this new software to our entire Star Cool customer base.”

Even higher energy reductions are achieved if produce is pre-cooled before loading. By carefully balancing compressor and fan speed, StarConomy software accurately matches air circulation to cooling demand, ensuring an ideal environment for produce.

Watch this video to see how StarConomy reduces energy consumption while maintaining produce freshness.

Find out more about StarConomy at

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