PATTERSON
P01.74402650

Unlock power within your CO₂ system
In transcritical CO₂ systems, valuable energy is lost during expansion. Zero Entropy helps you recover that energy and turn it into better system performance.
With our Power Expander, you can improve efficiency, add cooling capacity and generate useful electricity, without adding unnecessary complexity to your refrigeration or heat pump system.
Are you a CO₂ OEM?
Built for the CO₂ systems
you already work with
In CO₂ refrigeration and heat pump systems, expansion losses are part of everyday operation. Our Power Expander helps you recover part of that lost potential and convert it into useful electrical output.
That means you can improve COP, add system capacity and increase performance, with a technology designed to fit into the systems you already use.


Performance you
can measure
In CO₂ refrigeration and heat pump systems, expansion losses are part of everyday operation. Our Power Expander helps you recover part of that lost potential and convert it into useful electrical output.
That means you can improve COP, add system capacity and increase performance, with a technology designed to fit into the systems you already use.
Built for demanding CO₂ applications
In CO₂ refrigeration and heat pump systems, expansion losses are part of everyday operation. Our Power Expander helps you recover part of that lost potential and convert it into useful electrical output.
That means you can improve COP, add system capacity and increase performance, with a technology designed to fit into the systems you already use.

Put recovered expansion energy to the test
Your CO₂ system could help prove recovered expansion energy in practice. We’re selecting pilot partners with OEMs, refrigeration specialists and industrial operators to validate our product in real transcritical CO₂ systems.
Transcritical CO₂ refrigeration
Heat pump systems
OEM integration and demonstration projects
CE marked under the Pressure Equipment Directive (2014/68/EU) and Machinery Directive
Moving towards deployment
In CO₂ refrigeration and heat pump systems, expansion losses are part of everyday operation. Our Power Expander helps you recover part of that lost potential and convert it into useful electrical output.
That means you can improve COP, add system capacity and increase performance, with a technology designed to fit into the systems you already use.

Solving the last 20%
The next gains in heating and cooling efficiency are harder to find.
They are hidden in the cycle: in the small, technical losses that happen every hour a system runs. Losses that are easy to accept, as they are complex, unglamorous and difficult to recover.
That is where Zero Entropy works.
We focus on expansion energy in transcritical CO₂ systems: one of the places where valuable energy is still being lost. By recovering part of that loss and turning it into useful performance, we help improve COP, add cooling capacity and reduce wasted energy in real systems.
This is what we mean by solving the last 20%.
Practical, measurable progress. Step by step. Test by test. System by system.
Zero Entropy helps improve the efficiency of transcritical CO₂ refrigeration and heat pump systems by turning expansion losses into useful electrical output.

Recover expansion
losses in CO₂ systems
Expansion technology
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