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Energy statistics yearbook 2011

image of Energy statistics yearbook 2011
The 2011 Energy Statistics Yearbook is the fifty-fifth issue in a series of annual compilations of internationally comparable statistics summarizing world energy trends. Annual data for 224 countries and areas for the period 2008 to 2011 are presented on production, trade and consumption of energy: solids, liquids, gaseous fuels and electricity. In addition, per capita consumption series are also provided for all energy products. Graphs are included to illustrate historic trends and/or changes in composition of production and/or consumption of major energy products. Special tables of interest include: international trade tables for coal, crude petroleum and natural gas by partner countries – providing information on direction of trade; selected series of statistics on renewables and wastes; refinery distillation capacity; and a table on selected energy resources.

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Definitions

Hard coal – Coal that has a high degree of coalification with a gross calorific value above 23,865 kJ/kg (5,700 kcal/kg) on an ash-free but moist basis, and a mean random reflectance of vitrinite of at least 0.6. Slurries, middlings and other low-grade coal products, which cannot be classified according to the type of coal from which they are obtained, are included under hard coal. There are two sub-categories of hard coal: (i) coking coal and (ii) other bituminous coal and anthracite (also known as steam coal). Coking coal is a hard coal with a quality that allows the production of coke suitable to support a blast furnace charge. Steam coal is coal used for steam raising and space heating purposes and includes all anthracite coals and bituminous coals not classified as coking coal.

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