Data courtesy of Research and Markets

Transcritical CO2 systems, with their sustainable characteristics and technical reliability, are paving the way for future refrigeration and HVAC systems. As global demand skyrockets, HVAC business owners must be well-versed with this evolving trend to remain competitive and cater to growing customer demands.

A Market in Upward Trajectory

In 2022, the transcritical CO2 market valued at a staggering $44.7 billion, showing no signs of slowing down. With an anticipated Compound Annual Growth Rate (CAGR) of 16.7% between 2023 and 2028, experts predict the market to reach $117.1 billion by 2028.

Unpacking Transcritical CO2 Systems

Transcritical CO2 systems operate using a gas cooler for heat dissipation and a high-pressure expansion valve for evaporator regulation. They’ve garnered attention for being environmentally friendly, cost-effective, and efficient. Unlike traditional systems that use more expensive fluids, transcritical CO2 systems have superior heat transfer properties and a higher latent heat of vaporization.

Their unique design enables the recovery of rejected heat, offering additional potential for HVAC operations and domestic hot water heating. Given these advantages, it’s no surprise that they’re a preferred choice in food & beverage and retail industries.

Driving the Market: Key Trends

Several factors contribute to the meteoric rise of transcritical CO2 systems:

  • Air Conditioning Surge: The global demand for air conditioning units, particularly in the residential and hospitality sectors, combined with the cost-efficient operation of transcritical CO2 systems, positions them as a dominant force.
  • Cost Savings: Businesses are recognizing the steep maintenance costs linked to older HCFC and CFC equipment, making the switch to transcritical CO2 systems.
  • Eco-consciousness: As concerns over global warming intensify, transcritical CO2 systems emerge as a sustainable solution, boasting performance and reliability akin to HFC-134a refrigerant.
  • Cold Storage: The mounting demand for cold storage facilities signals a bright future for transcritical CO2 systems.
  • Regulations: With global governments cracking down on F-gases usage through strict regulations, the market for transcritical CO2 systems receives an additional boost.

A Look at Market Segmentation

The transcritical CO2 market is vast, segmented by:

  • Function: Covering refrigeration, heating, and air conditioning.
  • Application: Ranging from supermarkets and convenience stores to food processing, heat pumps, and more.
  • Region: Spanning North America, Asia-Pacific, Europe, Latin America, and the Middle East and Africa.

Industry Giants

Leading the transcritical CO2 movement are several key players:

  • Baltimore Aircoil Company Inc. (AMSTED Industries Incorporated)
  • Bitzer SE
  • Carnot Refrigeration (M&M Refrigeration)
  • Carrier Global Corporation
  • Danfoss
  • Dorin S.p.A.
  • Emerson Electric Co.
  • Hill Phoenix Inc. (Dover Corporation)
  • Mayekawa Mfg. Co. Ltd.
  • Panasonic Holdings Corporation
  • SCM Frigo S.p.A.


For HVAC business owners, understanding the global trend towards transcritical CO2 systems is imperative. With the market’s predicted growth, businesses must be ready to incorporate these systems and reap the benefits of efficiency, cost-effectiveness, and sustainability.

As the leading authority in market research, provides invaluable insights into global and regional markets, tracking the latest trends and developments. Ensure your business remains at the forefront of HVAC evolution by staying informed with the latest data.

TL;DR: The transcritical CO2 systems market is witnessing a rapid surge, predicted to reach $117.1 billion by 2028. These systems are environmentally friendly, cost-effective, and efficient, making them increasingly popular in the HVAC industry. Key growth drivers include rising demand for air conditioning, maintenance cost savings, environmental concerns, and stringent government regulations on F-gases. HVAC business owners need to stay updated with this trend to remain competitive in the evolving market landscape.

FAQs about Transcritical CO2 Systems and the Market

What is a transcritical CO2 system?

A transcritical CO2 system refers to a refrigeration method that utilizes carbon dioxide (CO2) as a refrigerant in conditions above its critical point. It consists of a gas cooler for heat dissipation and a high-pressure expansion valve to regulate the evaporator.

Why are transcritical CO2 systems environmentally friendly?

Transcritical CO2 systems are deemed environmentally friendly due to CO2’s non-flammable, non-toxic nature and its low Global Warming Potential (GWP). Compared to other refrigerants like hydro-chlorofluorocarbon (HCFC) and chlorofluorocarbon (CFC), CO2 has a minimal impact on global warming when released into the atmosphere.

How do transcritical CO2 systems contribute to cost savings?

These systems are cost-effective as they use affordable fluids and display higher efficiency than traditional refrigeration systems. Moreover, the heat rejected from these systems can be used for HVAC applications or domestic hot water, adding to energy savings.

Which industries predominantly use transcritical CO2 systems?

Transcritical CO2 systems find extensive applications in the food and beverage (F&B) industry, retail sectors like supermarkets and convenience stores, and cold storage facilities, amongst others.

Why are governments emphasizing the use of transcritical CO2 systems?

Governments worldwide are introducing stricter regulations to mitigate the environmental impacts of fluorinated gases (F-gases), which have high Global Warming Potentials (GWP). As a result, there’s a push towards adopting environmentally friendly alternatives like transcritical CO2 systems.

What is the predicted market growth for transcritical CO2 systems?

The global transcritical CO2 market, valued at $44.7 billion in 2022, is expected to reach $117.1 billion by 2028, growing at a Compound Annual Growth Rate (CAGR) of 16.7% from 2023 to 2028.

Who are the key players in the transcritical CO2 market?

Some of the notable companies in the global transcritical CO2 market include Baltimore Aircoil Company Inc., Bitzer SE, Carrier Global Corporation, Danfoss, Emerson Electric Co., and Panasonic Holdings Corporation, among others.

Why is there an increasing demand for air conditioning units using transcritical CO2?

The hospitality and residential sectors are experiencing a surge in the need for air conditioning units. Given the energy efficiency, environmental benefits, and cost-effectiveness of transcritical CO2 systems, they’re becoming the preferred choice.