In the United States (US), ammonia maintains an overwhelming presence in industrial refrigeration, occupying an estimated 80% to 90% of the market, according to Kurt Liebendorfer, VP of Industrial Refrigeration Business Development at Evapco. However, this dominance has declined slightly over the past decade as the uptake of carbon dioxide (CO2/ R744) refrigeration systems moves from the supermarket/ retail sector to the industrial sector as well. "This decline has primarily occurred in the new cold storage sector, where many new cold storages have been built over the same 10-year period, and some end-users have been attracted to non-ammonia solutions," Liebendorfer explains. 

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