India's Reservoirs Could Host 102 GW of Floating Solar, First National Assessment Finds
India's National Institute of Solar Energy released the first comprehensive assessment finding that the country's reservoirs and lakes could support approximately 102 gigawatt-peak of floating solar capacity. The assessment identified 1,946 square kilometers of technically feasible water surface across 682 waterbodies, with Maharashtra, Madhya Pradesh, and Karnataka having the highest potential. This potential is significant because land acquisition remains a major bottleneck for India's renewable energy expansion, and floating solar offers a land-neutral alternative to meet the country's 500 GW non-fossil capacity target by 2030.
India's Ministry of New and Renewable Energy released a landmark report titled 'Solar PV Potential of India: Floating Solar,' the first national assessment of floating solar capacity potential. The National Institute of Solar Energy (NISE) determined that India's inland water bodies could host approximately 102 gigawatt-peak of floating solar capacity, with Maharashtra (16.3 GWp), Madhya Pradesh/Andhra Pradesh (14.9 GWp), Karnataka (13.7 GWp), Odisha (12.8 GWp), and Telangana (10.7 GWp) leading in potential. The assessment applied six geospatial filters to 11,197 waterbodies, identifying 682 as technically feasible and covering 1,946 square kilometers of reservoir area. The government indicated it would develop a dedicated policy and timeline for deployment, with discussions underway between the finance and renewable energy ministries regarding promotional schemes. However, the report did not include cost estimates for realizing this potential, citing only a 2021 U.S. benchmark indicating floating plants cost approximately 25% more upfront than ground-mounted systems.
What's missing
The sources do not discuss potential environmental impacts of covering large water surface areas with floating solar panels, such as effects on aquatic ecosystems, water evaporation rates, or fish populations. Additionally, there is limited discussion of the technical challenges beyond those mentioned at Omkareshwar (float joint loosening, cable breakage), such as maintenance requirements, monsoon season impacts, or long-term durability in India's climate conditions.
What different sources said
- The HinduCenter
India’s reservoirs can host 102 GW of floating solar, says first national assessment
- Times of IndiaCenter
India has potential to develop about 102 gigawatt-peak of floating solar energy says govt
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