Abstract
AbstractIn Germany up to 100 GW of intermittent wind and solar power feed-in is expected until 2020. The network load probably will be between 45 GW and 85 GW. Therefore the influence of renewable power production especially onto thermal power generation is investigated by this paper in detail.An adjusted mixed-integer optimization model using the CPLEX solver 11.2 is used to calculate power plant schedules for the thermal generation system with up to 160 single thermal power plants (TPPs). Inter-temporal constraints like minimum up and down times, time depending startup costs, maximum power transients and a detailed allocation of spinning reserve power for primary and secondary control are considered. The load covered by fossil and nuclear power plants is determined considering the currently projected power from offshore wind farms, solar panels, combined heat and power in combination with the German pumped storage power stations (PSPSs) in 2020. The paper includes several scenarios to illustrate the heavy influence and show the results of the used model and time series.
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