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RB Kolubara
RB Kolubara (full legal name: ''Privredno društvo za proizvodnju, preradu i transport uglja Rudarski basen ''Kolubara'' d.o.o. Lazarevac'') is a Serbian coal mining and smelting complex with headquarters in Lazarevac, Kolubara District. The mine has coal reserves amounting to 2.2 billion tonnes of lignite, one of the largest lignite reserves in Europe, and it produces 22.6 million tonnes of coal per year.〔
Since Kolubara mining basin is the largest coal producer in the Elektroprivreda Srbije it plays a vital role in countries energy independence. About 52% of the electricity in Serbia is produced based on the lignite from Kolubara,〔(Rudarski basen Kolubara. Proizvodnja. Retrieved 11. 6. 2014 )〕 that is about 20 billion kW hours of electricity per year. Most of the coal (about 90%) is used for electricity production in TPP Nikola Tesla in Obrenovac, in thermal power plant Kolubara in Veliki Crljeni and in thermal power plant Morava in Svilajnac.〔(Serbia Energy. Serbia mining:The importance of “Kolubara mine basin” in the Serbian energy system. Retrieved 11. 6. 2014 )〕
==History==
The beginnings of mining in the region of Kolubara basin are associated with the year 1896 when the first pit Zvizdar was opened. In the eastern and western part of the basin coal has been successively extracted from the 14 pits Zvizdar, Sokolovac, Skobalj, Radljevo, Prkosava, Veliki Crljeni, Kolubara 1, Veliki Crljeni - Kolubara 2, Kosmaj - Kolubara 3, Baroševac, Šopić, Junkovac and others. A turning point in coal production came in 1952 with the opening of the first open pit (Fields A) which started mass surface mining of lignite. Opening of new mines and processing facilities fallowed.〔(Rudarski basen Kolubara. Rudarstvo staro 117 godina. Retrieved 9. 6. 2014 )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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