Efficiency (electricity and heat) production from conventional thermal plants, 1990 and 2005
Output from conventional thermal power stations consists of gross electricity generation and also of any heat sold to third parties (combined heat and power plants) by conventional thermal public utility power stations as well as autoproducer thermal power stations.
Due to inconsistencies in the Eurostat data set regarding public production in Luxembourg (input data is registered, output data is zero in 1990) and Norway (efficiencies >100%), this data is excluded from the figure and in total efficiency, but only for 1990.
Due to inconsistencies in the Eurostat data set regarding autoproducers production in Bulgaria, Greece, Romania, Luxembourg and Lithuania (efficiencies >100%) and Czech Republic (input data is zero, output is registered), the data of these countries are excluded. For Cyprus and Malta data on autoproducers is not available. Norway is completely excluded due to unreliable data.