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Keeping cool in the supermarket sector The drive to achieve climate targets represents an opportunity for natural refrigerants in the supermarket sector. Accelerate Europe reports from a conference held at the Danish Technological Institute (DTI) in Taastrup, Denmark.

head of the supermarket giant’s Danish construction department, said during the conference that in 2007 Lidl had selected a CO 2 -based system for its stores.

— By Álvaro de Oña & Charlotte McLaughlin

Since then it has also integrated heat pump technology and LED lighting into its new builds. This early investment in green technology led the retailer to win an award for Europe’s most sustainable grocery store in 2015.

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The prize was awarded by LEED (Leadership in Energy and Environmental Design), a certification system developed by the U.S. Green Building Council (USGBC), for a supermarket in Sjælør station, Copenhagen.

he natural refrigerant-based cooling systems that will help deliver the transition away from HFCs in the cooling sector are ready for market and already in place in many stores across Europe, heard participants in a two-day Danish conference on ‘Refrigeration in the supermarket sector’. Held on 8-9 November 2017 at the Danish Technological Institute (DTI) in Taastrup, Denmark (just outside Copenhagen), the conference highlighted different challenges and opportunities in the supermarket sector.

DTI, explained, “this conference is about gathering everyone from the industry from the installer to the end users [and] the authorities”. “What we have learned Is that many of the technologies are ready,” he said. Kim Christensen of Advansor and Kenneth Bank Madsen of Danfoss gave concrete examples of how Danish technology has helped supermarkets shift from R404A – a high-GWP HFC blend – to the natural refrigerant CO 2 beyond Scandinavia to southern European climates.

Participants discussed how updated climate policies represent an opportunity for the HVAC&R industry to help increase energy efficiency and reduce greenhouse gas emissions.

“There can be no doubt about it: you can have CO 2 all over the world. It is just a matter of having the right technology,” Foged told Accelerate Europe.

Esben Vendelbo Foged, team manager – refrigeration and heat pump technology (energy and climate) at

Innovative retailers are driving the adoption of CO 2 in some countries. Lidl Denmark’s Orhan Ongun, who is

The supermarket reused heat from the CO 2 refrigeration system, generated electricity from solar panels, and used geothermal heating and rainwater, according to Ongun. The substantial energy savings and environmental benefits led Lidl to incorporate the innovations into a new store that opened in 2016 in Aabenraa, southern Denmark. The conference also introduced two new projects involving DTI; one on ‘Super Supermarkets’ that use excess heat from the refrigeration systems’ compressors to provide district heating, and the other on IEA HPP Annex 44, which looks at creating energyefficient supermarkets. AdO & CM

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HONOURING THE TRAILBLAZERS The past twelve months have been full of innovation in the HVAC&R sector. The winter 2017 edition of Accelerate...

Accelerate Europe #9 Winter 2017  

HONOURING THE TRAILBLAZERS The past twelve months have been full of innovation in the HVAC&R sector. The winter 2017 edition of Accelerate...