Arrangement of the Combined Production of Power/Heat in a Supralocal Electric Power Grid System: Transmitted by the Government of the Federal Republic of Germany

Abstract

The “Stadtwerke Bielefeld GmbH”, distributing electric power, remote heat, natural gas and water, has been producing electric power in its own power stations since the beginning of electrification. The old, medium-pressure power station, with a net capacity of 105 MW, was rebuilt after the Second World War; since the early 1950s it has been equipped with back-pressure turbines for the combined production of power and heat. The remaining heating requirement is prepared by decentralizing peak heating stations. The heating power station was made more efficient in 1977 by adding a 25-MW gas turbine with waste-heat boiler. The “Stadtwerke Bielefeld GmbH” could not extend its own power station, so in 1959 it joined two neighbouring power supply authorities in a power station combine, which today disposes of an electrical capacity of 920 MW and which has a 26 per cent share in the 300 MW high-temperature reactor being built in Schmehausen and a 50 per cent share in the 1,300 MW pressurized water reactor being built in Grohnde. Thus the local heating/power station is working in parallel with the modern conventional high-pressure plants of the power station combine, and in the future will be working in parallel with nuclear power stations.