The National Institute of Ocean Technology (NIOT) an autonomous body of the Ministry of Earth Sciences has indigenously designed developed and demonstrated desalination technology for conversion of sea water into potable water based on Low Temperature Thermal Desalination System (LTTD). The LTTD is a process under which the warm surface sea water is flash evaporated at low pressure and the vapour is condensed with cold deep sea water. This technology is efficient and suitable for island territories of India.
The initial estimated cost of production of Kavaratti Plant was 10 paise per litre depending on the charges of power/electricity. The estimated cost of production of demonstration plant is inclusive of capital and other fixed costs. The operational cost of production is about 6-7 paise per liter.