Darco, Inc. - Underground Water Tank Manufacturer
We manufacture insulated and noninsulated fiberglass underground water tanks ranging in size from 15,000 gallon tanks to our largest standard individual fiberglass tank at 75,000 gallons.
Darco Fiberglass water storage tanks can be used in a wide variety of applications, including Cold Water Thermal Storage ("Chiller Tanks"), potable water, fire cisterns, rain capture, wastewater, storm water detention, and fire sprinkler reservoirs. You can learn more about these applications by visiting our main website.
How Cold Water Thermal Storage Systems Work
Thermal storage air conditioning systems activate chillers during the night when energy grid demand is low to store thermal energy in the form of chilled water.
With conventional air conditioning systems that do not use thermal storage, equipment is shut down completely during the night.
Thermal storage air conditioning takes advantage of lower cost off-peak power.
During daytime hours when demand is high, 
thermal energy is drawn from the thermal storage tank for cooling.
Summary of Cold Water Thermal Storage Features
The most appropriate type of thermal storage air conditioning system, such as a water-type system, can be selected depending on the scale and size of the installation space available. Water in the thermal storage tank can be used for extinguishing fires or during disasters or emergencies.
Thermal storage air conditioning systems can also respond to peaks in cooling loads during the day by combining cold energy stored during the night with that produced during daytime. Consequently, the size of the installation capacity can be greatly reduced.
Benefits of Cold Water Thermal Storage Systems
- Energy Efficient -
Using cheaper electric power during low demand night hours.
- Cost Efficient -
Lower chiller tonnage required in combination systems.
- Environmentally Friendly - Lessens the need for additional power plant construction.
Click below to learn more...
- About Darco
- About our product lines
- About specific tank applications:
Potable Water
Fire Protection
Fire Sprinkler Reservoirs
Rainwater Capture
Storm Water Detention
Agricultural
Wastewater Treatment