India's Geothermal Energy Sector Progresses with ONGC Leading Development Efforts by 2026
India's geothermal energy sector, with a potential of 10,600 MW across 381 sites, is gaining momentum following the 2025 National Geothermal Energy Policy. ONGC is spearheading efforts with its Puga Valley project, while SCCL operates the only functional geothermal power plant. Major players like Thermax, Greenko Group, and ReNew Power are exploring opportunities. The Ministry of New and Renewable Energy is key in policy and regulatory support, facilitating research funding and inter-agency collaboration. Challenges include high costs and limited expertise, but international partnerships may accelerate growth.

India's geothermal sector aims to harness 10,600 MW of potential identified across 381 sites, with ONGC leading development through its Puga Valley project. ONGC resumed drilling in 2024, targeting high-temperature resources for pilot projects.
SCCL operates a 20 kW geothermal plant, demonstrating proof of concept. Major independent producers, including Thermax, Greenko Group, and ReNew Power, seek geothermal opportunities to diversify their renewable portfolios.
The Ministry of New and Renewable Energy is pivotal in regulatory frameworks and funding support. Despite challenges like high costs and expertise gaps, strategic international partnerships may enhance growth.




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