Negative & Positive Cooling from Waste

Gallery Negative & Positive Cooling from Waste 1
Gallery Negative & Positive Cooling from Waste 1
April 2020
Headquarters 31300 Toulouse, France

Negative & Positive Cooling from Waste - Thermochemical solid-gas adsoprtion reaction that turns waste or renewable heat into cold

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.

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Key features

  • 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)


  • 80% electricity savings in 2-3 years.

Company Profile

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

Looking For

Activity Region

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