11.10.2022; Vortragsreihe
Kolloquium: Adequate Capacity in the German Electricity Market: Current Developments and Challenges
Helmholtzstraße 10, 01062 Dresden
Abstract:
Stable operation of the electricity system requires adequate capacities. In a meshed European energy system and increasing shares of renewable energies, determining adequate capacity is becoming increasingly challenging. This contribution illustrates different methods for analysing sufficient capacity in the electricity market and examines their differences: The simplest form of analysis is a static view of capacities using simple availability factors. Chance-constrained programming can extend the static view by uncertainty data, e.g., load and renewable feed-in. Highly sophisticated approaches are probabilistic methods, necessitating much more data and a higher modelling effort.
Additional to the illustration of methods, a case study on the German energy system is used to illustrate the challenges in the coming years: The phase-out of coal and nuclear capacities reduces secured capacity. Can the expansion of renewable energies compensate for this decline or are other capacities necessary? And which technologies can play a role here? The contribution discusses the question of adequate capacity and the role of technologies in the coming years but also highlights solutions for a decarbonised energy system with a high share of renewables.