R744: Walmart Acknowledges Opening First U.S. Store with Transcritical CO2 System in New York
U.S. multinational retailing giant Walmart has revealed that it has opened its first U.S. store to use transcritical CO2 (R744) refrigeration in Yaphank, New York, located on Long Island.
In a fiscal year 2022 climate brief, the Bentonville, Arkansas-based company noted that the Yaphank Supercenter, which opened in November 2021, “is the first to fully utilize CO2 technology for the store’s refrigeration needs.”
Walmart also operates more than 100 facilities (stores and distribution centers) using “ultra-low GWP refrigerants,” including CO2, glycol and ammonia/NH3 (R717), it said in the climate brief, adding, “We are using such systems in new construction where commercially available.” The ammonia is used in distribution center systems, while in other stores CO2 and glycol are used as secondary refrigerants.