Terms used in official statistics

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Brown coal


Non-agglomerating coal with a gross calorific value less than 17 435 kJ/kg (4 165 kcal/kg) and greater than 31 % volatile matter on a dry mineral matter free basis. Oil shale and tar sands produced and combusted directly should be reported in this category. Oil shale and tar sands used as inputs for other transformation processes should also be reported in this category. This includes the portion of the oil shale or tar sands consumed in the transformation process. Shale oil and other products derived from liquefaction should be reported on the Annual Oil Questionnaire.

  • Regulation (EC) No 1099/2008 of the European Parliament and of the Council of 22 October 2008 on energy statistics
    Place of publication: (Dz. Urz. UE L 304 z 14.11.2008, str. 1, z późn. zm.)

Contact person on methodology:
Urząd Statystyczny w Rzeszowie