CONDENSATE HARVESTING SYSTEMS FROM WATER HARVESTING SOLUTIONS
An often overlooked source of harvested water is the condensate that comes from cooling coils of any air conditioning system. Condensate is an excellent source of clean water that can be directed back into the cooling tower system or for other uses with minimum treatment. The amount of condensate coming from a cooling system is directly proportional to the load on the system, meaning that the more water being lost through evaporation, the more is available as condensate. A cooling system in a commercial building can generate a million gallons or more of condensate each cooling season. This quality source of harvestable water is usually redirected and wasted into the municipal stormwater system.
Cooling condensate is also a great way to increase the efficiency of a rainwater harvesting system by providing a daily supply of harvested water even during periods of drought. That can help reduce the days when municipal water needs to be added to the system.
The Value of Condensate Harvesting
What is the value of a condensate harvesting system? When evaluating in terms of the number of gallons of condensate that could be harvested per year, it depends on the size of the building and the amount of cooling required each year. The following chart provides rough estimations based on 50,000 square foot buildings located in different cities throughout the country. Actual water savings can vary from the values listed here, but this chart is helpful in understanding the potential for a condensate harvesting system in different areas.