The Solar Energy Corporation of India has issued a tender for setting up 4 MW of grid-connected floating solar projects with 2 MW of battery energy storage system (BESS). The projects will be developed at Kalpong Dam in Diglipur, located in northern Andaman. A tariff cap has been set at Rs 8 per kWh for a period of 25 years. The scope of work includes the design, engineering, manufacture, dispatch, transportation, and storage of all equipment and materials. The projects will be developed on a build-own-operate (BOO) basis, and the last date for the submission of bids is February 13, 2020.
India had less than 5 MW of floating solar installed capacity as of October 2019. However, the country has abundant waterbodies in the form of reservoirs inside hydro and thermal power plants as well as a number of lakes and ponds, which present ample opportunities for installing floating solar projects. As per media reports, even if 10-15 per cent of the existing reservoirs and waterbodies are utilised, there will still be a potential to deploy 300 GW of floating solar projects. Apart from offering significant potential to produce electricity, floating solar provides various technical advantages upon installation. Studies have shown that the cooling effect of water on solar modules lowers their temperature, thereby improving the energy yield and potential system efficiency. The lack of obstructions and shading in open waterbodies prevents the formation of hotspots, while less dust reduces soiling losses.