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National Coal Index

    • It is a price index which reflects the change of price level of coal in a particular month relative to the fixed base year.
      • The base year for the NCI is Financial Year 2017-18.
    • Compilation:
      • Prices of coal from all the sales channels of coal,including import, as existing today are taken into account for compiling the NCI.
      • The amount of revenue shareper tonne of coal produced from auctioned blocks would be arrived at using the NCI by means of defined formula.
    • Sub-Indices:NCI is composed of a set of five sub-indices:
      • Three for Non Coking Coaland two for Coking Coal.
      • The three sub-indices for Non Coking Coal are combined to arrive at the Index for Non Coking Coal and the two sub-indices for Coking Coal are combined to arrive at the Index for Coking Coal.
      • Thus,indices are separate for Non Coking and Coking Coal.
        • As per the grade of coal pertaining to a mine, the appropriate sub-index is used to arrive at the revenue share.

Coal

TYPES_OF_COAL india

  • Coal is the most abundant fossil fuel which holds 55% of India''s energy need.
  • Based on the uses,coal is divided into two types:
    • Coking Coal:
      • This type of coal when subjected to high temperature carbonisation i.e. heating in the absence of air to a temperature above 600 degree Celsius, forms a solid porous residue called coke.
        • Cokeis fed into a blast furnace along with iron ore and limestone to produce steel in steel plants.
      • Coking coal is desired to be oflow ash percentage.
      • Use:
        • Mainly used in steel making and metallurgical industries.
        • Also used for hard coke manufacturing.
      • Non Coking Coal:
        • These are coals without coking properties.
        • Use:
          • This is the coal used in thermal power plants to generate electricity, so it is also known as steam coal or thermal coal.
          • Also used for cement, fertilizer, glass, ceramic, paper, chemical and brick manufacturing, and for other heating purposes.
        • Coal is also classified into four ranks: anthracite, bituminous, subbituminous, and lignite.The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.

 



POSTED ON 17-01-2024 BY ADMIN
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