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Negative & Positive Cooling from Waste

Thermochemical solid-gas adsoprtion reaction that turns waste or renewable heat into cold

April 2020
Gallery Negative & Positive Cooling from Waste 1
Gallery Negative & Positive Cooling from Waste 1


Their solution allows to use waste or renewable heat, instead of electricity, to produce cold. This way, energy losses are minimised while free, low quality energy (heat) is used instead of expensive, high quality energy (electricity).

Contrary to their absorption competitors, COLDINNOV's solution can efficiently produce negative as well as positive cooling, making it suitable for refrigeration (evaporation at -4°C), process cooling (+4°C) and air-conditioning (+12°C). In industrial, as well as mobile refrigeration facilities, they replace an energy intensive and noisy compressor with their static thermochemical reactor. All the other components (evaporator, condenser...) can be found ready to use on the current market, lowering considerably costs as well as failure risks. They use a natural refrigerant fluid (ammonia), which is both very effective and environmentally friendly.

  • /
Label Date April 3, 2020
From France
Maturity stage Prototype testing 1:1 in the lab
Looking For Network; New clients; Visibility; Partners; Credibility.

The environmental benefits

  • It saves on average the emission of 160 teqCO2/year/unit located in Europe
  • It avoids 15%/year harmful refrigerant gas losses (ca 16 teqCO2/year)

The Financial benefits

  • 80% electricity savings in 2-3 years.

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile


Our breakthrough innovation turns waste heat into sustainable cooling by using a thermochemical reaction and ammonia

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Headquarters 31300 Toulouse, France

Networking Partner


ADEME - The French Agency for Ecological Transition- is a public agency under the joint authority of the Ministry for an Ecological Transition and the Ministry for Higher Education, Research and Innovation.

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Solutions Associated 52
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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. The innovator ColdInnov has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.