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The system will pump cool water, about 45° F, from 1,600 feet below the ocean waves. The water will travel through the pump system to an onshore station where it will cool fresh water that circulates in a closed loop through customers’ buildings in downtown Honolulu. Once the cold seawater has done its job, it is pumped back into the ocean at a shallower level, going through a diffuser to ensure proper mixing and dilution to the surrounding sea.
SWAC uses water from the ocean depths as a coolant for air conditioning in buildings. With this system it is possible to save up to 20 to 50 percent of current energy costs for cooling -- a savings equivalent to Euro 1-2 million [US$1.27 million to $US2.5 million]) per year.
Anywhere around the globe where deep ocean seawater is available (about 700 m deep) and where the slope of the ocean floor is sufficiently steep, the SWAC system can be applied. In moderate climates air-conditioning can also be delivered from thermally stratified lakes with a depth of over 20 meters. For higher water intake temperatures hybrid systems can be used. Click here for more details on the system.
Advantages for you:
* Up to 90% less electricity consumption for cooling
* Low operational costs
* Practically invisible and noiseless
* High reliability and quality of cooling supply
* 100% reduction of freon usage
* Contribution to a sustainable environment