Johannes Czernik successfully defends his diploma

Johannes Czernik successfully defended his thesis on "Optimized energy supply of a CO₂-neutral Germany - techno-economic analysis of an energy system with high temporal resolution including renewable supply and storage technologies" on 5 March 2026. The thesis was supervised by Dipl.-Ing. (FH) Sebastian Rochau, the examiners were Dr.-Ing. Simon Unz and Prof. Dr.-Ing. Michael Beckmann.

The focus of the work was the development of a transparent and comprehensible optimization model for a climate-friendly energy supply in Germany. The starting point was an analysis of today's energy demand structure and an estimate of future final energy demand. This was used to create a load profile with a quarter-hourly resolution over the course of a year, which served as the basis for modeling the energy system.

Building on this, Mr. Czernik examined various renewable supply technologies - including photovoltaics, wind energy and biomass - as well as different storage options and energy converters. These technologies and their technical and economic parameters were integrated into an optimization model with the aim of designing a CO₂-neutral energy system at minimum cost. Scenario and sensitivity analyses were also used to investigate the effects of key system parameters on the future energy supply.

The results show that a CO₂-neutral energy supply for Germany is technically feasible in principle . At the same time, they highlight the importance of storage technologies, the electrification of various sectors and possible import dependencies of renewable energy sources for the future design of the energy system.

We would like to congratulate Mr. Czernik on the successful defense of his thesis and wish him all the best for the future.