Our system increases refrigeration capacity during periods of high ambient temperatures by evaporatively cooling the air cooled condensers. The capacity increase and electrical demand reduction is significant. To achieve the desired end result, the design capacity of the evaporative cooling system must be sufficient to over-cool the air entering the condenser. The objective being to maximize the cooling effect and to wet the condenser tubes. The additional capacity can allow up to 15-20% of existing compressors to be valved off if the facility does not need the increased capacity.