Description
Niederaussem Power Station is a lignite-fired power station in the Bergheim Niederaussem/Rhein Erft circle, owned by RWE. It consists of nine units, which were built between 1963 and 2003. It is the second-largest brown coal power plant in operation in Germany, with total output capacity of 3,864 MW and a net capacity of 3,627 MW. According to the study Dirty Thirty, issued in May 2007 by the WWF, Niederaussem Power Station is the third-worst power station in Europe in terms of the relation of energy efficiency to CO2 emissions.HistoryInitial constructionIn the autumn of 1960 the construction work for the blocks A and B began. The location was selected because of the possibility of an extension. The supply of brown coal was ensured by seams on a north-south course . Before blocks A and B first produced power, the construction work for the first 300 megawatt power station block location in Niederaussem began. That block went on-line in the summer 1965. Between 1968 and 1971 three further power plants with improved technology were developed. With the building of the two 600 MW plants a large jump forward occurred. These plants were added to the grid in 1974. At that time the plants at Niederaussem produced a total of 2,700 megawatts.Mid-1990sIn the middle of the 1990s the output was again increased. In order to reach the limit values of the new environmental protection regulations, in 1986 the work for a flue gas desulphurating plant began. That work was completed in 1988. The flue gases are fed into scrubbers and cleaned by a lime water mixture. The cleaned and cooled exhaust gases are then warmed up to 75 °C (167 °F) again and carried by the chimneys to the outside air. During the flue gas purification, gypsum from the lime water mixture, which is processed beside the power station in Auenheim by the company Pro mineral, is produced.
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