Why in the News?
The Centre for Earth Sciences and Himalayan Studies (CESHS) has successfully drilled India’s first geothermal production well in Dirang, located in Arunachal Pradesh’s West Kameng district.
This could potentially make Dirang the first geothermal-powered town in the country.
What is Geothermal Energy?
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About Dirang Geothermal Project:
- This project in West Kameng, Arunachal Pradesh, is the first successful geothermal drilling site in Northeast India.
- It is led by CESHS under the Arunachal Pradesh Department of Science and Technology, with support from the Ministry of Earth Sciences.
- It is a medium-to-high enthalpy zone (~115°C), with a fault between quartzite and schist, enabling efficient, low-impact drilling.
- The site was selected after two years of geochemical and structural surveys, and can support applications like agricultural drying, space heating, and controlled storage.
- International partners include the Norwegian Geotechnical Institute, Geotropy ehf (Iceland), and Guwahati Boring Service for execution.
India’s Geothermal Landscape:
- The Geothermal Atlas of India (2022) identifies 381 thermally anomalous sites across the country.
- India has an estimated geothermal potential of 10,600 MW, enough to power over 10 million homes.
- Geothermal energy offers base load power, unlike intermittent solar and wind sources.
- The first operational plant was a 20 kW binary cycle pilot in Manuguru, Telangana, developed by SCCL.
- A 25 MW project in Khammam remains stalled due to tariff issues with the Andhra Pradesh Electricity Regulatory Commission.
- In Puga Valley, Ladakh, ONGC resumed work in 2024 on a 1 MW pilot plant, after a 2022 hot water leak raised safety concerns.
- In Dholera, Gujarat, geothermal energy is used for cooking and air conditioning at a temple, showing direct-use feasibility.
- India has signed MoUs with Iceland (2007) and Saudi Arabia (2019), and included geothermal energy in the 2023 RETAP agreement with the United States.
| [UPSC 2013] Consider the following: (1). Electromagnetic radiation (2). Geothermal energy (3). Gravitational force (4). Plate movements (5). Rotation of the earth (6). Revolution of the earth
Which of the above are responsible for bringing dynamic changes on the surface of the earth? Options: (a) 1 only (b) 2 and 3 only (c) 1, 2 and 3 (d) None* |
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