Projects Info | 5-11 May, 2008

Industry

Barh Super Thermal Power Project

Power Punch

NTPC is one of the dominant players of the India’s power sector. India is facing supply side constraint on the power front. NTPC, formed in 1975 to accelerate power development of the country, with the Government of India holding almost 90 per cent of the company's total equity shares is holding forte on the power front. As per the latest estimate released in April 2008, the company has contributed 28.51 per cent of the total electricity generated in the country during 2007-08 with 19.11 per cent share of the total installed capacity of the nation. The company boast of the current installed capacity of 29,144 MW, including 1794 MW from JVs. The company aims to add more than 10 GW in new coal-fired plants by the end of the eleventh plan i.e., by 2012. The approved outlay for 2008-09 for capital schemes of NTPC is Rs 1,35,880 million. The company shall generate 2,09,000 MUs of electricity in the financial year 2008-09. One of the most promising project of NTPC is Barh Super Thermal Power Project.

Barh Super Thermal Power Project:
This project was approved by the Central Electricity Authority (CEA) way back in the year 2001. The project funding is through domestic and external commercial borrowings, with equity from internal resources of NTPC. The project is accorded mega power project status, based on which it is eligible for certain benefits such as no customs duty on import of capital equipment, and price preference of 15 per cent for domestic public sector undertakings (PSUs).

Stage - I: The first stage consisting of three units of 660 MW each is under implementation. The contract for construction of Barh Super Thermal Power Project - Stage I was awarded to Technopromexport a Russia-based power equipment supplier, upon the results of open tender, held by NTPC in November 2004. The contract value was USD 454 million. The group designed, manufactured, supplied, erected and commissioned the three power units for the turbine island. The pump set consisting of 9 turbine or electric driven feed pumps and 9 condensate pumps are being supplied by the KSB Group since April 2007. In this project, Yokogawa India is providing instrumentation systems for the boilers and other utilities of three power generators. These include the CENTUM CS 3000 R3 Distributed Control System, PRM Plant Resource Manager, DPharp EJA Pressure/Differential Pressure Transmitters, and IR8A Infrared Gas Analyzers. As part of its full turnkey project solution, Yokogawa India is also providing engineering, installation, and commissioning services. This contract is estimated to be worth USD 11.8 million.

Stage - II: The company plans to spend about Rs 7,341 crore for setting up the second phase of Barh super thermal power project in Bihar. The company board has accorded the investment approval for Barh Super Thermal Power Project, Stage-II (2 X 660 MW) in Bihar at an appraised estimated current cost of Rs 7,341 crore.

Technology in use: The plant uses super-critical steam generation, with water instantly being converted into steam without passing through the boiling phase. Operating pressures are around 250 atmospheres. Fuel requirement: The annual coal requirement for Barh will be met from the Amrapali block of North Karanpura coal fields. The coal would be transported by using rail network from North Karanpura to Barh. The power generated will go mostly to North, West and East India. Six 400KV electrical substations link Barh to Kahalgaon, Sasaram and Biharsharif. This project will go a long way in solving energy crisis in Bihar. As per CEA report released in April 2008, there is a energy deficit of 14.2 per cent for the period April - March 2008 (See table). It is 26.8 per cent for March 2008 alone. The peak demand for March 2008 was 1534 MW against the supply of 1020 MW, thereby resulting into a power deficit of 514 MW amount to 33.5 per cent peak hour deficit in Bihar.

Period, Energy Requirement (MU), Energy Availability (MU), Energy Deficit /
Surplus (MU), Energy Deficit / Surplus (%)
April 2007 - March 2008
All India 737052 664660 -72392 -9.8
Bihar 9242 7930 -1312 -14.2
*MU: Million units

Source: Central Electricity Authority, April 2008 Report

Corporate Brief
NTPC's core business is engineering, construction and operation of power generating plants. It also provides consultancy in the area of power plant constructions and power generation to companies in India and abroad. The company plans to be a 50,000 MW plus Company by 2012 and 75,000 MW plus Company by 2017. As on date the installed capacity of NTPC is 29,144 MW through its 15 coal based (23,395 MW), 7 gas based (3,955 MW) and 4 Joint Venture Projects (1,794 MW). Currently 16,930 MW projects are under construction.

Project Facts

Stakeholders
NTPC Ltd.

Capacity
3300 MW (1980 MW - Stage I, 1320 MW - Stage II)

Cost
Stage-I: Rs 19,000 Crore
Stage-II: Rs 7,342 Crore

Funding
NTPC has recently tied a loan of USD 380 million (approximately Rs. 15272 million) with international banks under Japan aBank of Cooperation (JBIC) guarantee to part finance the 1980 MW Barh Super Thermal Power Project (Stage I) in Bihar state

Power Equipment Supplier
Stage-I: Technopromexport, Russia, KSB Group,Yokogawa India

Stage-II: Bhel, India

Coal Requirement
15 million tonnes per annum

Location
Near Patna, Bihar

Current Status
Stage-I consisting of 3 x 660 MW is under implementation. Construction is progressing smoothly and Unit 1 is now planned to start operation in October 2009.

Stage-II consisting of 2 x 660 MW is planned and investment approved by the company. So far LOA issued for Steam Generator. State-owned power equipment manufacturer Bharat Heavy Electricals Ltd (BHEL) has been awarded Rs.18-billion ($450 million) contract to supply boiler package to the National Thermal Power Corporation's 1,320 megawatt (MW) Barh stage-II supercritical power project in Bihar. The entire project is expected to complete by March 2012.

Clean coal technologies

Power generation in India is largely dependent on coal. The targetted capacity for the XIth plan is 78,577 MW, out of which around 46,600 MW is expected from coal based power projects. The use of coal causes environmental problems. To address these environmental concerns, India has adopted clean coal technologies for power generation. Some of these technologies in use are given below:

Supercritical Technology
In India supercritical units of 660 MW are under installation at Sipat and Barh Thermal Power Stations(TPS) of NTPC Ltd. Ultra Mega Power Projects are also envisaged to be with supercritical parameters. Supercritical generating units are being manufactured by a number of countries viz, USA, Japan, Germany, Korea, Russia, China etc. BHEL has also on-going collaboration for manufacture of supercritical boilers and turbine generators with M/s Alstom and M/s Siemens respectively. L&T has also formed a joint venture company for manufacture of supercritical boilers and turbine generators with MHI, Japan.

Circulating Fluidised Bed Combustion (CFBC) Technology
Four CFBC units of 125 MW each are operating at Surat lignite TPS and Akrimota TPS in Gujarat. Six CFBC units of 125 MW each are under execution at Surat Lignite, Giral TPS and Barsingsar TPS. CFBC units of 250 MW are being installed at Neyvelli by Neyvelli Lignite Corporation. CFBC boilers are already being manufactured in India.

Integrated Gasification Combined Cycle (IGCC)
So far the world over, IGCC technology has been adopted for low ash coal which is not suitable for Indian high ash coal. In India, efforts are underway to develop this technology through indigenous efforts.


*Credits: Sandeep Ravidutt Sharma, Foundation of Infrastructure Research Studies Training (FIRST)


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