KNOWLEDGE BASE

INDIA'S FIRST GEOTHERMAL WELLS AT PUGA VALLEY

India's first geothermal wells at Puga Valley (Ladakh) mark a major step towards harnessing indigenous geothermal energy for clean, renewable, and round-the-clock power generation.

News: India commissioned its first and deepest geothermal wells at Puga Valley, Ladakh, marking a milestone in the country's clean energy transition and Ladakh's carbon-neutral vision.

About

  • Two geothermal wells drilled to a depth of 1,000 metres at an altitude of over 14,000 feet.
  • The wells will support India's first 1 MW pilot geothermal power plant.

Key Highlights

  • Harnesses heat from the Earth's interior to generate 24×7 renewable electricity.
  • Maximum temperature of 135°C recorded at 400 metres depth.
  • Implemented by ONGC Energy Centre in collaboration with the Ladakh Administration and LAHDC, Leh.
  • Guided by the National Policy on Geothermal Energy, 2025.

About Puga Valley

  • Located in the Changthang region of Ladakh, about 22 km from Salt Lake Valley.
  • Famous for its hot sulphur springs and rich geothermal resources.
  • Considered India's most promising geothermal energy site.

Geothermal Energy

  • Renewable energy obtained from the Earth's internal heat.
  • Used for electricity generation, heating and cooling.
  • Provides reliable baseload power, unlike weather-dependent solar and wind energy.

Significance

  • Advances India's clean energy and energy security goals.
  • Supports Atmanirbhar Bharat and Net Zero commitments.
  • Opens avenues for harnessing India's estimated 10,600 MW geothermal potential.
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