Lignite is the lowest rank of coal, often referred to as brown coal, used almost exclusively as fuel for steam-electric power generation. It is brownish-black and has a high inherent moisture content, sometimes as high as 45 percent The heat content of lignite ranges from 9 to 17 million Btu per ton on a moist, mineral-matter-free basis. Production data include quantities extracted from surface and underground mines, and normally exclude wastes removed at mines or associated reparation plants.
| Datum | Wert | Ändern , % |
|---|---|---|
| 2022 | 125 | 19,37 % |
| 2021 | 104 | 21,52 % |
| 2020 | 86 | 19,85 % |
| 2019 | 72 | -0,15 % |
| 2018 | 72 | 22,83 % |
| 2017 | 58 | 6,00 % |
| 2016 | 55 | -12,28 % |
| 2015 | 63 | 1,79 % |
| 2014 | 62 | 64,71 % |
| 2013 | 37 | 25,24 % |
| 2012 | 30 | 74,58 % |
| 2011 | 17 |