Title:

Study of Economic Feasibility for a Decentralised Small Off Grid Geothermal Power Plant Using Slim Boreholes

Authors:

Taral PATEL, Manan SHAH

Key Words:

Economic Feasibility, Geothermal, Power Plant, Small Grid

Conference:

Stanford Geothermal Workshop

Year:

2021

Session:

Low Temperature

Language:

English

Paper Number:

Patel

File Size:

576 KB

View File:

Abstract:

India’s 80% of the electricity demand is fulfilled by exploiting non-renewable fossil fuel. India’s dependence on energy imports will exceed 53% of the country’s total consumption by 2030. To curtail this alarming increase of dependence on fossil fuels' attention towards the development of renewable resources like Solar, Wind, Hydropower, and Geothermal is needed. The major aggravating factor that flags the development of renewable power plants is 65% of the population residing in remote areas. This makes transmission of electricity a major issue for remote areas as most of the power is lost in form of heat over long distances from power plants. This paper shows a case study of Himachal Pradesh, India discussing the feasibility of a decentralized Small off-grid Geothermal power plant for providing electricity to remote areas. According to a study, Himachal Pradesh Geothermal Sub- provinces (HPG) is a fraction of the large Himalayan Geothermal Province extending up-to 1500 sq. km. High thermal gradients ( more than 260℃/km) and High heat flow( more than 180mW/m2) are the characteristics of HPG. Additionally, Surface spring temperature of 57 to 98℃ at Manikaran, Himachal Pradesh corroborates the high potential reserves of geothermal sources beneath the strata. Thermal water flow rates measured from the shallow exploration bore wells, drilled by the Geological Survey of India, varies from 200 L/m (52 GPM) to 1000L/m (264 GPM) is far greater than the 2.5 – 3 GPM required for the production of 12000 BTU/hour. The use of slim boreholes (150mm or less) will reduce the drilling cost for the extraction of thermal waters further increasing the possibilities of off-grid geothermal plants for rural electrification. This paper also presents the approximate economic cost required to set up a geothermal plant at a remote location and studying the minimum load required for the plant to be feasible for local populace.


ec2-3-21-233-41.us-east-2.compute.amazonaws.com, you have accessed 0 records today.

Press the Back button in your browser, or search again.

Copyright 2021, Stanford Geothermal Program: Readers who download papers from this site should honor the copyright of the original authors and may not copy or distribute the work further without the permission of the original publisher.


Attend the nwxt Stanford Geothermal Workshop, click here for details.

Accessed by: ec2-3-21-233-41.us-east-2.compute.amazonaws.com (3.21.233.41)
Accessed: Friday 26th of April 2024 07:30:06 AM