Choosing The Right Refrigerant for your Supermarket, And it's not CO2

CO2, a supposedly “natural” refrigerant that despite having low GWP, falls short on several other factors that are important to supermarkets. It's time to reassess CO2 based systems and consider a transition to clean, low GWP, HFO-based refrigerants .



Whether you’re building new or retrofitting an existing refrigeration system, Honeywell has the expertise to help you meet energy efficiency goals and achieve carbon footprint reduction, without sacrificing system performance. More than 60,000 supermarkets globally trust Solstice technology to help them improve system energy efficiencies and comply with current and proposed regulations, with the goal of reducing the use of high-GWP HFCs.

No matter what your store footprint is – small, medium, or large, our Solstice technology offers you refrigerant for low and medium applications for new systems and retrofits. 

Solstice® N71 (R-471A)

  • Nonflammable, HFO based refrigerant with <150 GWP
  • Provides energy efficiency improvement1 of 30% compared to CO2 and 13% versus R-404A, helping supermarkets reduce their overall CO2 footprint
  • Follows standard installation and maintenance practices, requiring no elite skillset and experience
  • Application: Medium temperature
  • Usage: New Systems

Solstice® L40X (R-455A)

  • Mildly-flammable, HFO based refrigerant with GWP of 146
  • Offers higher efficiency and is close capacity match to R-404A, an extended operating envelope when compared to propane or air-conditioning refrigerants, and high energy efficiency
  • Application: Low and medium temperature
  • Usage: New Systems

Solstice® 454C (R-454C)

  • Non-ozone depleting, zeotropic blend designed as a low GWP (<150) alternative to R-404A in refrigeration applications including food retail, cold storage and plug-in refrigeration equipment
  • Close capacity match to R-404A and provides 27% energy efficiency improvement2 vs. CO2
  • Mildly flammable (A2L) 

Solstice® N40 (R-448A)

  • Non-flammable, and near-drop replacement for R-404A with 70% lower-GWP
  • Application: Low and medium temperature
  • Usage: Retrofits and new Systems

Featured Content

Transition to a low carbon future and transform sustainability into a competitive advantage

Boost your brand value

Cooling matters to your business.  How you cool matters to your customers. Several studies show that consumers’ preference to shop sustainable brands and their willingness to pay more for sustainable products has been increasing substantially3 over the past few years. Being recognized as an environment-friendly business can boost your brand value and provide a compelling competitive advantage.

Improve your bottom line

Hydrofluoroolefins (HFOs) are considered to be more energy efficient than HFCs. For example, Honeywell Solstice N40 demonstrated an average of between 5% and 15% lower energy consumption in comparison to R-404A.  Transitioning to HFO and HFO blends can help you lower your overall energy footprint and reduce maintenance cost, which has a direct positive impact on to your bottom line.

Increase shareholder value

Choosing the right refrigeration technology enables your business to meet your sustainability goals and paves the way to generate capital and build shareholder value over the long-term

Get in Touch with Us

If you are a retail chain or store leader, refrigeration engineer, refrigeration systems contractor, or a consultant, do get in touch with us to learn more.

  • If you are a retail chain or store leader, refrigeration engineer, refrigeration systems contractor, or a consultant, do get in touch with us to learn more.
  • How can we help you make the best decision about your asset newbuilds and remodeling?
  • How can we help you manage your assets and meet your sustainability goals within budget?
  • How do Solstice refrigerants help preserve energy and improve your bottom line better than the next best alternative?
  • How can we help you become carbon neutral faster and at lower cost?