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Cooling and a/c based on water as natural refrigerant and renewable thermal energy sources such as solar, district heating, biomass etc.



Green transition of the largest market segment for cooling and a/c by replacing conventional system with thermally driven plug&play cooling systems based on renewable energy cutting power demand and GHG emissions by 70%and water as natural refrigerant.

SDG #7 - Ensure access to affordable, reliable, sustainable and modern energy for all 
I warm climates, more than +60% of the electricity demand us used for cooling. In (rural) off grid areas, or(urban) areas with low access to energy, access to cooling for food storage, cooling of technical spaces or a healthy indoor environment in schools, clinics, hospitals etc. is either unavailable or costly to produce.
Plug&Play solar cooling systems will increase access to this building service without consuming electricity.

SDG #11 - Make cities and human settlements inclusive, safe, resilient and sustainable
See describtion above for SDG #7.

SDG #12 - Ensure sustainable consumption and production patterns
At present consumers are left with no option for selecting sustainable cooling and a/c product types. All 3 billion cooling and air conditioning systems operating worldwide and all 135 mill. units sold annually in the global market are designed for electricity and industrial refrigerants with high GWP.
17% of the global electricity demand is consumed by  cooling and air conditioning systems  and the demand for cooling and a/c is rapidly growing globally. In EU, energy demand for cooling is expected to increase by 70% within 2030.

PURIX plug&play solar and district cooling systems are the first commercially available truly green cooling and a/c system based on thernal energy input and water as natural refrigerant.

SDG #13 - Take urgent action to combat climate change and its impacts
Commercially available products is a unique opportunity for addressing 17% of the global electricity demand with off-the-shelf solutions for cutting up to 70% of the power demand and related GHG emissions, while applying water as natural refrigerant.



What actions do you propose?

Who will take these actions and which types of actors are involved?

Where will these actions be taken and how could they scale?

In addition, specify the countries where these actions will be taken.

South Africa

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What impact will these actions have on reducing greenhouse gas emissions and/or adapting to climate change?

What are the most innovative aspects and main strengths of this approach?


What are the proposal’s projected costs?

About the Authors


What enabling environment would be required in order to implement this proposal?