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Long term planning of inter-company energy supply concepts

: Fichtner, W.; Wietschel, M.; Rentz, O.


OR spectrum 24 (2002), Nr.4, S.497-520
ISSN: 0171-6468
ISSN: 1436-6304
Fraunhofer ISI ()
investment planning; long-term production planning; intercompany energy supply concepts; mixed-integer programming; combined heat and power

In order to assess the economic and ecological effects of inter-company energy supply concepts, an optimising model integrating investment and long-term production planning has been developed. The model represents the energy production of companies on a very disaggregated level taking into account different resources, energy carriers and production processes. This model has been applied to five industrial companies to analyse the economic and ecological implications resulting from investments in inter-company energy supply concepts. Existing technologies as well as possible investment options have been assessed by a techno-economic analysis taking into account company specific circumstances. In addition, the new German combined heat and power law has been modelled in detail, because the supplementary payments legally established in this law may effect energy go supply concepts in a considerable way. Computational results show the installation of a combined cycle power plant adapted to the specific conditions of the case at hand would be the most promising option to fulfil the future energy demand of the companies involved.