Renewable energies are expected to be the main electricity generation source. However, the variability of renewable energy supply poses challenges to the generation expansion modelling as uncertainty of hourly generation need to be adequately taken into account. This paper analyzes the implications of different approaches to optimization under uncertainty, ranging from stochastic to robust optimization. ...
We analyze optimal infrastructure investments for the integration of variable renewables in the German electricity system. Using a combined dispatch, transmission, and investment model, we compare four scenarios with different investment options, including gas-fired power plants, pumped hydro storage and transmission lines. In a reference scenario of the year 2024, geographically optimized investments ...
We investigate the impact that different technical and operational model representations for hydroelectric reservoir and pumped storage power plants have on the market dispatch and annual generation patterns in a techno-economic electricity sector model. The ‘detailed’ model explicitly accounts for individual plant and reservoir capacity limitations, hydraulic interconnections within cascaded systems, ...
