Anantapur Gets Solar Power Plant

The plant built at a cost of Rs 848 crore, is the only solar thermal facility located in south India.

Published: 14th November 2014 06:06 AM  |   Last Updated: 14th November 2014 08:20 AM   |  A+A-

12h-meil2

HYDERABAD: Anantapur district is known for arid weather conditions and as one which receives solar radiation of 5.2 kilowatt per square meter per day. It gains significance as the district is one of the few places across India which receives heat radiation of such strength.

12h-meil4.jpg

Utilising this natural phenomenon and to promote clean energy solutions, Megha Engineering & Infrastructures Limited (MEIL) established a 50 Mega Watt (MW) solar thermal power plant in the district, which uses concentrated solar power (CSP) technology, one of its first in south India. MEIL established this plant through its unit MEIL Green Power Limited (MGPL).

MGPL was awarded the 50 MW solar thermal power plant as part of Jawaharlal Nehru National Solar Mission (JNNSM). The mission’s target is to deploy 20,000 MW of grid connected solar power by 2022.

The plant, commissioned on Thursday, is spread across 600 acre of Nagalapuram village in Peddavadaguru mandal of Anantapur district and built at a cost of ` 848 crore. The plant is the only one, out of seven, solar thermal power plants located in south India. The six other plants are located in Rajasthan and produces 420 MW put together.

How does it work?

The plant uses a technology which is still in its nascent stages in India.

That is Parabolic Trough Technology, wherein a series of reflective mirrors are designed in the form of parabolic troughs and a thin pipe runs along focal point. Sun energy from the mirror surfaces’ is directed to the thin pipes.

A Heat Transfer Fluid (HTF) runs through the pipe which absorbs the heat energy directed to the pipes and it gets heated up to a temperature of 400 degree Celsius. Upon pumping, the HTF reaches heat exchanger, where the accumulated heat is transferred to water running around the pipes. At the high heat conditions, water is converted to vapour form which rotates the turbines and thus electricity is produced.

Ninety seven per cent of sun light that falls on the mirrors is reflected to the tube. For maximum utilisation of sun’s heat, a devise, Inclinometer, is used to track position of sun. The troughs change their position and face sun accordingly, alike  a sun flower.

50 MW Power and Two States

The 50 MW power generated from the power plant will be finally sent to the National Thermal Power Corporation limited (NTPC) grid. The corporation takes care of distributing the power between AP and Telangana states. “As of now, we are increasing production capacity from 15 MW per hour. And by the end of this month, the plant will produce 50 MW,” said B Uma Maheshwar Reddy, associate vice president (AVP), MEIL. The power generated every day is sent to NTPC and sold at a cost of ` 11.30 per unit.

At full capacity, the power plant will generate 110 million units per annum. About future plans of the company, Uma Maheshwar said that they are aiming to increase the production to 550 million and would choose Anantapur for the power generation.

Usually, Photo Voltaic (PV) technology is used for utilizing solar energy in production of electricity. However, MEIL choose to go for Parabolic Trough Technology as it was costing less compared to the PV technology in 2010. Over the years, as PV technology matured, cost of the technology came down drastically.

“However, in the future cost of this CSP will also come down,” Uma Maheshwar said.

Stay up to date on all the latest Telangana news with The New Indian Express App. Download now
(Get the news that matters from New Indian Express on WhatsApp. Click this link and hit 'Click to Subscribe'. Follow the instructions after that.)

Comments

Disclaimer : We respect your thoughts and views! But we need to be judicious while moderating your comments. All the comments will be moderated by the newindianexpress.com editorial. Abstain from posting comments that are obscene, defamatory or inflammatory, and do not indulge in personal attacks. Try to avoid outside hyperlinks inside the comment. Help us delete comments that do not follow these guidelines.

The views expressed in comments published on newindianexpress.com are those of the comment writers alone. They do not represent the views or opinions of newindianexpress.com or its staff, nor do they represent the views or opinions of The New Indian Express Group, or any entity of, or affiliated with, The New Indian Express Group. newindianexpress.com reserves the right to take any or all comments down at any time.

facebook twitter whatsapp