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Wednesday, 24 June 09
NTPC BURNS MORE COAL TO PRODUCE ELECTRICITY
 A tonne of coal is the same as another tonne of coal, you might think.
But power major NTPC Ltd is finding that this year’s coal is not yielding as much energy to generate electricity as last year’s did or as that of the year before. So the utility needs to burn more and more coal to produce a unit of electricity.
In 2008-09, NTPC, the nation’s largest electricity producer with 79 coal-fired units across the country, managed to increase its electricity output by 3.7 per cent over the previous year, but had to consume 5.4 per cent more coal than it did previously. It was not an anomaly.
In 2007-08, it increased electricity output by 8.2 per cent, but coal burn was up 9.2 per cent. The situation was better the previous year (2006-07), where electricity output was up nearly 11 per cent against an incremental coal consumption of around 8 per cent.
Demand-supply mismatch
NTPC officials concede that that a steady decline in domestic coal quality has been among the key factors responsible for the mismatch in incremental coal consumption and power generation. “Power stations are designed for a particular coal quality range for optimum plant efficiency.
The key areas of concern include high levels of ash in coal, which goes up to 45 per cent in case of domestic coal, and also inconsistency in coal quality, both chemical and physical. Presence of mineral matter in coal has a detrimental impact — wear and tear of coal and ash flow paths, combustion chambers, mills, crushers etc. High ash also impacts the plants thermal efficiency,” an NTPC official said.
Domestic problem
According to Coal Ministry officials, Indian coal has always had a problem on account of high ash content. “Besides the inherent ash problem, there is dilution in the quality of coal due to the over-reliance of open cast mining over underground mining in recent years,” a Coal Ministry official said. Stones and other inert material happen to get scooped up along with the coal.
While in 1970-71, open cast mining constituted only 20 per cent of production, at present about 85 per cent of coal is produced through this mining method, due to which the quality of coal — in terms of gross calorific value — has been steadily deteriorating.
According to Power Ministry estimates, during the early 1960s, the calorific value of domestic coal was around 5,900 kilocalories per kilogram (KCals/Kg). By the 1970s, this had gone down to around 5,250 KCals/Kg, which dipped further to around 4,200 KCals/Kg in the Eighties.
This came down to around 4,000 KCals/Kg in the Nineties then to the current levels of around 3,500 KCals/Kg. Imported coal from countries such as Indonesia, Australia and South Africa, in comparison, has an average calorific value of around 6,500 KCals/Kg.
Source: The Hindu Business Line (http://www.thehindubusinessline.com/2009/06/24/stories/2009062451550200.htm)
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Tuesday, 23 June 09
NAPOCOR TO RE-TENDER FOR 195,000 T COAL IN JULY
Electricity producer National Power Corp. (Napocor) will hold a tender on July 15 to buy 195,000 tons of steam coal for its Sual power station, the ...
Monday, 22 June 09
ONE DIES IN KUTAI COAL TUNNEL COLLAPSE
The Jakarta Post reported that, A tunnel at a coal mine belonging to company PT Fajar Bumi Sakti in Kutai Kartanegara, East Kalimantan collapsed on ...
Monday, 22 June 09
THIS WEEK IS EXPECTED TO BE FIRM AND DEMAND OF SHIPS WOULD BE STRONG - VISTAAR SINGAPORE
COALspot.com (Singapore): The BDI up by 487 points over last week which is an increase of almost 13 pct. The increase is again mainly due to Ca ...
Monday, 22 June 09
CHINESE MAY COAL IMPORTS HIT RECORD 9.43 MILLION TONNES
Reuters quoted Custom Data showed that China's coal imports hit an all-time record of 9.43 million tonnes in May.
The figure surpasses the previ ...
Monday, 22 June 09
SOUTH AFRICAN EXPORT COAL DECLINES ON WEAKENING EUROPEAN DEMAND
Prices for coal shipped from South Africa’s Richards Bay, site of the world’s largest export terminal for the fuel, posted the first dro ...
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- Electricity Generating Authority of Thailand
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- Romanian Commodities Exchange
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- Videocon Industries ltd - India
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- MS Steel International - UAE
- Rashtriya Ispat Nigam Limited - India
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- Indian Oil Corporation Limited
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- Planning Commission, India
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- Simpson Spence & Young - Indonesia
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- Power Finance Corporation Ltd., India
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- Africa Commodities Group - South Africa
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- Wilmar Investment Holdings
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- Rio Tinto Coal - Australia
- CNBM International Corporation - China
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- Intertek Mineral Services - Indonesia
- Ind-Barath Power Infra Limited - India
- GN Power Mariveles Coal Plant, Philippines
- Economic Council, Georgia
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- OPG Power Generation Pvt Ltd - India
- Trasteel International SA, Italy
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- Australian Coal Association
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- Leighton Contractors Pty Ltd - Australia
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- Bangladesh Power Developement Board
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- Kepco SPC Power Corporation, Philippines
- PowerSource Philippines DevCo
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- Ministry of Finance - Indonesia
- Chamber of Mines of South Africa
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- Price Waterhouse Coopers - Russia
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- Attock Cement Pakistan Limited
- Mjunction Services Limited - India
- Commonwealth Bank - Australia
- Kalimantan Lumbung Energi - Indonesia
- Global Business Power Corporation, Philippines
- Mercuria Energy - Indonesia
- Offshore Bulk Terminal Pte Ltd, Singapore
- Eastern Coal Council - USA
- Bhatia International Limited - India
- Altura Mining Limited, Indonesia
- San Jose City I Power Corp, Philippines
- PTC India Limited - India
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- The University of Queensland
- Holcim Trading Pte Ltd - Singapore
- Miang Besar Coal Terminal - Indonesia
- Coastal Gujarat Power Limited - India
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- The Treasury - Australian Government
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- Jaiprakash Power Ventures ltd
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- PNOC Exploration Corporation - Philippines
- Bukit Baiduri Energy - Indonesia
- Gujarat Sidhee Cement - India
- Pipit Mutiara Jaya. PT, Indonesia
- Maheswari Brothers Coal Limited - India
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