Frigo Consulting specializes in CO2 refrigeration and provides engineering and consulting services.
The retailer also achieved financial savings on heating and hot water production via heat recovery.
Temporary plug-in units were used to hold goods during the conversion of the stores to transcritical CO2 with ejector technology.
The transritical CO2-based store, which reopened on 14 September, uses an ejector from CAREL/Carrier.
METRO has opened its second Russian CO2 transcritical supermarket, a month after opening its first in July.
METRO opened its first CO2 transcritical store in Russia last Thursday, near Moscow.
The CO2 transcritical system was installed at a supermarket near Turin, Northern Italy. Accelerate Italy reports.