Abstract for: A system dynamics model for the German electricity market - model development and application

Aim of this paper is the description of a system dynamics based model for the German electricity market and its application. With the model “Zertsim”, developed by EIFER, impact studies of economic and environment related constraints on the German elec-tricity spot market should be made. A first application of the model was in a workshop with entrepreneurs of the region of Karlsruhe in Germany. One result of the workshop was an order of impact factors for the development of electricity prices and CO2 emis-sions. The most determining factors for high electricity prices are: 1) environmental constraints, 2) fuel prices, 3) electricity demand, and 4) extended operation time for nuclear power stations in Germany. Regarding CO2 emissions the highest impacts could be find in the case of: 1) environmental constraints, 2) extended operation time for nuclear power, 3) electricity demand and finally 4) fuel prices.