SUPERMARKETSFANS


■Energy Export: The system proved capable of producing more energy than it consumed. During the 2024 study period, the facility exported 21.5 MWh of surplus electricity and 23 MWh of surplus heat to local grids, transitioning from a net energy consumer to a prosumer.


Analysis and implications The results of the case study suggest several important implications for the food retail sector. First, the signifi cant reduction in operational emissions


provides a clear, data-backed pathway for retailers to meet corporate sustainability goals and comply with increasingly stringent environmental regulations, such as the F-gas phase- down. The elimination of fossil fuel-based heating systems is a primary contributor to this decarbonization. Second, the economic implications are substantial. The


energy cost-savings derived from on-site electricity generation and the complete removal of separate heating costs can lead to a rapid return on investment for the additional equipment. The study suggests a payback period of under two years is achievable in similar contexts. Third, the ability to export surplus energy introduces a new potential revenue stream, fundamentally altering the business model of a supermarket from a pure energy consumer to a participant in the local energy market. This aligns with broader trends toward decentralised energy grids and circular economy principles.


The Danfoss Smart Store case study provides empirical


evidence that the integration of existing technologies, namely CO₂ refrigeration, heat recovery, and on-site PV generation, can result in signifi cant and verifi able reductions in greenhouse gas emissions for food retail operations. The fi ndings, verifi ed by a third party, indicate that emission savings of 39% to 68% are achievable compared to current market standards, depending on the reference scenario. The study concludes that beyond the environmental benefi ts, the economic case for such integrated systems is strong, driven by energy cost savings and the potential for revenue generation through energy export.


"The fi ndings indicate that such integrated systems off er a viable pathway to decarbon- ization for the food


retail sector, supported by a business case based on energy savings and potential revenue


from energy export."


RS-51 (R470B)


NEW LOW GWP DROP- IN REPLACEMENT FOR R404A & R507 GWP BELOW 750


GWP more than 80% below R404A & ca half R448A & R449A


Non-flammable & low toxicity


Lowest GWP replacement for R404a & R507 on the market Similar performance to R404A & R507 Lower discharge pressure than R448A & R449A Compatible with R404A & R507 lubricants


Minimal changes needed to equipment when replacing R404A or R507 Suitable in OEM & retrofit applications


RS-51 can replace R404A and R507 in many of the applications where these refrigerants are found including supermarkets, cold stores, freezers, ice machines, refrigerated transport, beer cellars, freezer cabinets, transportation of foodstuffs, freeze dryers & others


RS-53 (R470A)


THE ONLY NON- FLAMMABLE DROP-IN REPLACEMENT FOR R410A ON THE MARKET


R410A split air-conditioning unit converted to RS-53 & operating satisfactorily without any problems


Low direct GWP (less than half) Drop-in replacement for R410A in existing equipment


Non-flammable & low toxicity Similar energy efficiency to R410A Minimal changes to hardware during retrofitting Close match for R410A in cooling capacity


Similar discharge pressure & temperature to R410A


Compatible with lubricants commonly used with R410A


RS-20(R480A) LOW GWP


REPLACEMENT FOR R134a


GWP BELOW 300 No changes to equipment required GWP below 300 & 80% less than R134a Non-flammable & low toxicity Similar performance to R134a


An almost perfect performance match to replace R134a in vehicle air conditioning Similar discharge pressure & temperature Equivalent cooling capacity


Suitable to replace R134a across the board of applications including, but not restricted to, refrigerated transport, cold stores, supermarkets, cellar cooling, dairy chillers, vending machines etc


Download the ACR News app todaywww.refsols.com Refrigerant Solutions hp ACR Mar25.indd 1


www.acr-news.com • June 2026 15 25/2/25 11:00


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