A team of scientists at the National Institute of Ocean Technology (NIOT), Chennai have developed India’s first Saline Water Lantern, named Roshni. It is considered a unique innovation in the maritime ecosystem as it powers itself using seawater. The Minister of Earth Science, Dr Jitendra Singh presented this first-of-its-kind LED lamp during his visit to the Coastal Research Vessel, SAGAR ANVESHIKA. The Ministry stated, “Dr Jitendra Singh has launched India’s first Saline Water Lantern which uses seawater as the electrolyte between specially designed electrodes to power the LED lamps.” The technology is feasible and cost-effective and it can be used in hinterlands also, by mixing common salt with water.
The Minister commended the great scientific achievement of NIOT. He said that Roshini Lamps along with Power Ministry’s schemes like Solar Study Lamps will drive a vibrant renewable energy programme aimed at achieving energy security, energy access and reducing the carbon footprints of the national economy. He also mentioned the ‘UJALA scheme’ of GoI which was launched in 2015 for the country-wide distribution of LED bulbs.
It must be noted that the Low-Temperature Thermal Desalination (LTTD) technology is also under development. It converts seawater into potable water and it was successfully demonstrated by the three LTTD technology-based desalination plants in Lakshadweep islands. Dr Singh also reviewed this progress at the event. Importantly, the oceanic conditions around Lakshadweep are found suitable for the deployment of the LTTD technology.