Danfoss Smart Store ADC demonstrates the journey towards a net-zero supermarket

  • Overview
  • Highlighted products
  • Related applications
  • Case studies
  • Contact us

A unique supermarket

On June 29th the COOP 365 Smart Store opens for the public for the first time. In the Danfoss Smart Store the cooling and heating technologies are in operation 24/7. It’s not a laboratory simulating real-life operation. Customers open cabinet doors hundreds of times a day and every time it puts demand on the cooling and heating of the supermarket. The Danfoss Smart Store demonstrates our available solutions in action.

BALS, Brugsforeningen for Als and Sundeved, Denmark’s largest independent supermarket association, will rent the building from Danfoss and will install a COOP 365discount supermarket. BALS, which works together with COOP, has a total of 13 stores in the area around Sønderborg in Denmark and since 2015 has consistently reduced the consumption of energy in its stores. So far, they have cut 44 percent of their total CO2 emissions. Therefore, it was a natural next step that BALS became a partner in the project.

Lars G. Andersen, managing Director of BALS, says:

“We already have a lot of experience, but the energy price spikes have put further pressure on the need for change. Our 13 supermarkets have been modernized, and we have nearly no cost for heating in the stores because the heat comes from our freon-free refrigeration systems, solar cells, and heat pumps. It is an advantage with the current energy prices, and it reduces our CO2 emissions. We are proud to be part of one of the most energy-efficient supermarkets in the world and test the solutions that can help buildings become climate neutral.”

People at the ground-breaking ceremony

Danfoss builds supermarket

Ground-breaking ceremony for the construction of one of the world’s most energy-efficient supermarkets.

Scalable technologies

The installations and technologies in the supermarket are scalable. They can be applied in the smallest store up to the biggest hypermarket.

The supermarket cooling (refrigeration and comfort cooling) systems run exclusively on natural refrigerants (CO2). CO2-based refrigerants do not deplete the ozone layer and have the lowest possible Global Warming Potential (GWP) score. In addition, CO2 refrigerants outperform traditional HFC-systems when it comes to energy efficiency in different weather conditions.

The supermarket is equipped with a heat recovery unit capturing excess heat from the cooling systems to provide space heating for the entire store as well as the surrounding community through the district heating network. The heat recovery unit, can by re-using the excess heat from the cooling system, reduce the external heat requirement with up to 89,7%. Furthermore, the energy pack can supply additional heating and cooling when needed.

Smart energy systems applied

100 KW solar panels on the roof help to optimize store operations. On sunny days, solar energy can be accumulated in the freezers. Turning the temperature in the freezers further down from e.g., -18 to -25 help accumulate solar energy ( while reducing battery storage). When the solar panels are less efficient due to no sun the temperature rises back to normal settings.

Co-developing with customers

The supermarket has two separate refrigeration systems installed that run independently of each other. Therefore, operations of a supermarket continue while Danfoss co-develops new solutions with customers. And when future applications are being tested, the cooling cabinets and freezers stay cool.


DGNB Gold (EU)

LEED Platin (USA)

The final certifications can only be obtained after six months of operations.

The Smart Store provides inspiration for building DGBN / LEED certified supermarkets showcasing that it does not require a lot of extra resources to ensure that the building is healthy, future proof, and positively impacting the surrounding community.


In order to positively impact the local biodiversity several initiatives have been taken. Very visible mega pergola surrounding the building which will be watered by use of collected rain- and surface-water. Also, different native grasses as well as a ‘green roof’ will be planted to create a micro-environment for biodiversity.

Cooling and heating capacity for 1,500 m2 store and 250 m2 ADC

30 kW medium temperature

13 kW freeze - low temperature

20 kW comfort cooling/ventilation for store and ADC (additional 20 kW from roof-top chiller)

Highlighted products

  • if (isSmallPicture) { Product group photo of refrigeration temperature sensors by Danfoss; } else if (isBigColumns) { Product group photo of refrigeration temperature sensors by Danfoss } else { Product group photo of refrigeration temperature sensors by Danfoss }
    Refrigeration temperature sensors

    Refrigeration temperature sensors are used for applications within air-conditioning as well as commercial and industrial refrigeration applications. The Pt 1000 sensor element meets the DIN/IES 751 class B requirements and ensures an accurate and reliable temperature signal applicable for regulation, safety and data logging.

Related applications

Case studies

  • if (isSmallPicture) { CO₂ chiller in factory; } else if (isBigColumns) { CO₂ chiller in factory } else { CO₂ chiller in factory }
    CO₂ Chillers Give Pro-Refrigeration A ‘Future-Proof Solution’

    With the approaching HFC phasedown, the demand for environmentally friendly cooling systems is driving chiller manufacturers to innovate. Washington-based Pro Refrigeration, Inc., a leading manufacturer and supplier of chillers for the industrial and beverage processing market, including the dairy, beer and wine industries, recognized an opportunity with CO₂ chillers.

  • if (isSmallPicture) { Adaptive refrost; } else if (isBigColumns) { Adaptive refrost } else { Adaptive refrost }
    The secret behind Danfoss adaptive defrost

    Before digging into the secret of Danfoss adaptive defrost, let’s first take a look at the most common methods of defrosting refrigerated display cases, and why they’re necessary.

  • if (isSmallPicture) { Danfoss logo featureing "Engineering Tomorrow"; } else if (isBigColumns) { Danfoss logo featureing "Engineering Tomorrow" } else { Danfoss logo featureing "Engineering Tomorrow" }
    Engineering Tomorrow helps transform supermarkets into “Smart Stores” for demand response

    Like any supermarket chain, Giant Eagle operates in a very competitive marketplace where energy management can be a crucial ingredient to success and profitability. That’s why the Pittsburgh, Pennsylvania-based chain carefully manages its stores’ critical energy consumers: lighting, refrigeration, and HVAC equipment. When Giant Eagle learned its utility—PJM Interconnection—offered a demand response program that provided incentives to reduce electric consumption, they talked to Danfoss to see how they could take advantage of the opportunity.

  • if (isSmallPicture) { Danfoss logo with "Engineering Tomorrow"; } else if (isBigColumns) { Danfoss logo with "Engineering Tomorrow" } else { Danfoss logo with "Engineering Tomorrow" }
    Engineering Tomorrow allows environmentally-focused retailer to achieve its goals

    Looking to evolve its refrigeration strategy to anticipate evolving refrigerant regulations and reduce cost, supermarket chain Weis Markets partnered with Danfoss to slash the global warming potential of its refrigeration systems by deploying its first transcritical CO2 refrigeration system.

  • if (isSmallPicture) { Evaporator injection algorithm; } else if (isBigColumns) { Evaporator injection algorithm } else { Evaporator injection algorithm }
    Selecting the right evaporator injection algorithm makes a world of difference

    Danfoss has pioneered two control algorithms that help you achieve this balance. The Minimum Stable Superheat (MSS) algorithm has been an important part of the Danfoss ADAP-KOOL® offering for years and is still the ideal choice for adaptive evaporator control for dry expansion. Now Danfoss introduces the next generation: Adaptive Liquid Control (ALC).

  • if (isSmallPicture) { Intelligent and adaptive control in transcritical CO2 refrigeration; } else if (isBigColumns) { Intelligent and adaptive control in transcritical CO2 refrigeration } else { Intelligent and adaptive control in transcritical CO2 refrigeration }
    Intelligent and adaptive control in transcritical CO2 refrigeration

    Intelligent control solutions are important for achieving reliable, optimized operation and realizing financial savings and environmental benefits in your transcritical CO2 refrigeration solution.

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