CO2 installations include warm regions of the U.S., such as California, Florida, Texas and Georgia.
CO2 refrigeration systems will be installed at 12 of 15 stores that are collectively receiving US$1 million in grants.
ALDI Nord is rolling out CO2 in Luxembourg stores while ALDI Süd continues CO2 installations in U.S.
The turbine will generate up to 40% of the Illinois warehouse’s energy; all ALDI US warehouses use R717 and most of 360 stores use R744.
ALDI US and Whole Foods Market are among the six food retailers that will be using the funds at 16 supermarkets, 14 for new systems and two for refrigerant retrofits.
But the walk-in evaporator maker sees lack of CO2 interest in the U.S.
The OEM grows installed base by more than 30% in the past year, including some systems in warm climates.
Last year, Hillphoenix refrigeration equipment was installed in 87% of GreenChill-certified stores under the U.S. Environmental Protection Agency (EPA) scheme.