Energy supplies

The specific fuel consumption used for generating electricity was considerably reduced between 1990 and 2008. Whereas in 1990 the fuel utilisation per net kilowatt-hour generated was still 9.9 mega-joules (MJ), only 6 MJ was required in 2008. As a result, the efficiency of the electricity generation – here defined as the ratio of the gross electricity generation to the overall energy input – increased to 41.9% by 2008. By way of comparison, in 1990 the efficiency of the fuel utilisation for generating electricity was still just 36.5%. Within the framework of the existing power plant fleet, a reduction of the specific fuel consumption can only be achieved with considerable additional costs. This means that a significant increase in the efficiency will only be attained if the technically and economically obsolete plants are replaced with modern, new plants.