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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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Wednesday, 01 July 09
COAL INDIA SEEKS FASTER APPROVALS, IMPORTS, OVERSEAS MINERS
Coal India Ltd., the world’s biggest coal producer, wants mining approvals sped up to help it boost production to meet a widening supply short ...
Tuesday, 30 June 09
ARCELORMITTAL, RIO, 8 OTHERS VIE FOR COAL INDIA MINES
Coal India Ltd. short-listed ArcelorMittal, Rio Tinto Group and eight other companies to develop its abandoned mines to help ease a shortage of coal ...
Monday, 29 June 09
INDONESIA PLANS 20 PCT FOREIGN MINING SALE LAW
Indonesia plans to require foreign investors in mining firms to gradually divest shares starting from the fifth year of commercial production, but m ...
Monday, 29 June 09
CHINA ENJOYS STABLE COAL ECONOMY IN THE FIRST FIVE MONTHS OF 2009
In the first five months of the year, China's raw coal production had continued to rise, and coal market stayed in a balance in terms of supply-dem ...
Monday, 29 June 09
GOVERNMENT FINE TUNES MINING LAW
The government is planning to require all foreign-owned mining companies to divest 20 percent of their businesses to local entities after five years ...
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- Uttam Galva Steels Limited - India
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- Jorong Barutama Greston.PT - Indonesia
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- Bank of Tokyo Mitsubishi UFJ Ltd
- GAC Shipping (India) Pvt Ltd
- Africa Commodities Group - South Africa
- Kalimantan Lumbung Energi - Indonesia
- Electricity Authority, New Zealand
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- Kumho Petrochemical, South Korea
- Ambuja Cements Ltd - India
- Toyota Tsusho Corporation, Japan
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- Holcim Trading Pte Ltd - Singapore
- Directorate General of MIneral and Coal - Indonesia
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- Kartika Selabumi Mining - Indonesia
- Krishnapatnam Port Company Ltd. - India
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- SN Aboitiz Power Inc, Philippines
- IEA Clean Coal Centre - UK
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- Wood Mackenzie - Singapore
- Meenaskhi Energy Private Limited - India
- Binh Thuan Hamico - Vietnam
- Orica Mining Services - Indonesia
- Ministry of Finance - Indonesia
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- Ministry of Mines - Canada
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- White Energy Company Limited
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- Energy Development Corp, Philippines
- Parliament of New Zealand
- Chamber of Mines of South Africa
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- Posco Energy - South Korea
- Port Waratah Coal Services - Australia
- International Coal Ventures Pvt Ltd - India
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- Tamil Nadu electricity Board
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- Global Coal Blending Company Limited - Australia
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- AsiaOL BioFuels Corp., Philippines
- Kideco Jaya Agung - Indonesia
- Maheswari Brothers Coal Limited - India
- Kohat Cement Company Ltd. - Pakistan
- Australian Commodity Traders Exchange
- Electricity Generating Authority of Thailand
- Indonesian Coal Mining Association
- Planning Commission, India
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- Indika Energy - Indonesia
- Orica Australia Pty. Ltd.
- Directorate Of Revenue Intelligence - India
- Mercator Lines Limited - India
- Attock Cement Pakistan Limited
- Thiess Contractors Indonesia
- Cigading International Bulk Terminal - Indonesia
- Eastern Coal Council - USA
- Australian Coal Association
- New Zealand Coal & Carbon
- Mercuria Energy - Indonesia
- Independent Power Producers Association of India
- Minerals Council of Australia
- Edison Trading Spa - Italy
- Billiton Holdings Pty Ltd - Australia
- Interocean Group of Companies - India
- Georgia Ports Authority, United States
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- The University of Queensland
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- TNB Fuel Sdn Bhd - Malaysia
- Latin American Coal - Colombia
- Karbindo Abesyapradhi - Indoneisa
- MS Steel International - UAE
- The State Trading Corporation of India Ltd
- McConnell Dowell - Australia
- Ind-Barath Power Infra Limited - India
- India Bulls Power Limited - India
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- Bhatia International Limited - India
- Heidelberg Cement - Germany
- SMG Consultants - Indonesia
- PTC India Limited - India
- Global Business Power Corporation, Philippines
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- Dong Bac Coal Mineral Investment Coporation - Vietnam
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- GVK Power & Infra Limited - India
- GMR Energy Limited - India
- Commonwealth Bank - Australia
- Parry Sugars Refinery, India
- Alfred C Toepfer International GmbH - Germany
- Goldman Sachs - Singapore
- Aboitiz Power Corporation - Philippines
- Power Finance Corporation Ltd., India
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- Bharathi Cement Corporation - India
- Bukit Baiduri Energy - Indonesia
- Bayan Resources Tbk. - Indonesia
- Cement Manufacturers Association - India
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- Indian Energy Exchange, India
- Ceylon Electricity Board - Sri Lanka
- Filglen & Citicon Mining (HK) Ltd - Hong Kong
- LBH Netherlands Bv - Netherlands
- Dalmia Cement Bharat India
- Price Waterhouse Coopers - Russia
- Gujarat Mineral Development Corp Ltd - India
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- Pipit Mutiara Jaya. PT, Indonesia
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- Offshore Bulk Terminal Pte Ltd, Singapore
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- Mintek Dendrill Indonesia
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- Tata Chemicals Ltd - India
- Semirara Mining and Power Corporation, Philippines
- Trasteel International SA, Italy
- Economic Council, Georgia
- The Treasury - Australian Government
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- London Commodity Brokers - England
- Borneo Indobara - Indonesia
- Riau Bara Harum - Indonesia
- Madhucon Powers Ltd - India
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- Coastal Gujarat Power Limited - India
- Rio Tinto Coal - Australia
- Bangladesh Power Developement Board
- Barasentosa Lestari - Indonesia
- Asia Pacific Energy Resources Ventures Inc, Philippines
- SMC Global Power, Philippines
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- Semirara Mining Corp, Philippines
- Banpu Public Company Limited - Thailand
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- ASAPP Information Group - India
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- Medco Energi Mining Internasional
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