Immediate benefits of I-OTECS are the production of pure water, potable water and mineral water. Pure water is produced from the warm seawater by the Low Temperature Thermal Desalination (LTTD) process with a quality of 2 - 5 μS/cm.
From this, potable water and drinking water are easily manufactured, (see fig. 7). LTTD has the advantage of low maintenance compared to other desalination methods as scaling is greatly reduced at the low temperature process and expensive filters are unnecessary.
A temperature difference greater than 8°C is required between the warm source and cold sink. OTEC conditions are perfect for this application.