1 ee nodal pricing in the german electricity sector a welfare economics analysis with particular reference to implementing offshore wind capacities florian leuthold ina rumiantseva hannes weigt till jeske and christian von hirschhausen ete modelling workshop leuven 16 september 2005 dresden university of technology drewag chair energy public management 2 agenda introduction background model data 3 scenarios 4 results 5 conclusions references dena study high additional costs from integrating germany mainly due congestions problem uniform not properly determined prices locational value node specific generation transmission eg losses congestion physical location on grid incl generators loads calculation market clearing for all nodes subject security constraints reflect real conditions every indicate price when overstepping limits purpose this paper is analyze effect power north sea under studies & applied social rises compared