Solution | Product

Recovering heat from CO2 refrigeration systems

Standardized, ready-to-install solution for supermarkets to heat buildings or water through waste heat

The Heat Recovery Unit provides the link between a cooling unit and the heating installation. Developed and designed for recovery of waste heat from refrigeration installations, where CO2 is used.

In Europe, around 2% of the total energy consumption for electricity is used for refrigeration in supermarkets, and within five years, 50% or European supermarkets will use CO2 as a refrigerant. If supermarkets in Europe were to use the waste heat from the CO2 refrigeration units to heat the spaces and water in their own building – generally not the best insulated places – it could lead to energy savings of EUR 1.8 billion annually.

Key features for a positive impact on quality of life

  • Use of this system in supermarkets across Europe could lead to final energy savings that equate to 2.6 million tonnes of oil annually, corresponding to annual emissions savings 6.1 million tonnes of CO2


  • Standardized system could lead to energy cost savings of EUR 1.8 bln, with an average payback time of 1.5 years.


The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.

Danfoss A/S

6430 Nordborg, Denmark

Activity regions
Eastern Europe, Northern Europe, Southern Europe, Western Europe,

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Solutions helps to achieve these SDG's.

  • Affordable and clean energy

  • Sustainable cities and communities

Maturity stage

Looking for

New clients and visibility

Categories of application
Other emerging technologies, Urban infrastructure innovation, Building, HVAC, Refrigeration, Water heating, Heating, Smart-building,