Hatz (Germany)

The electricity grid of KWH Netz is facing the challenges of the German energy transition: combined with ageing assets in the low-voltage and medium-voltage level these challenges lead to increased peak-to-peak reliability values. For the future, an increase in technical risks is expected. Therefore, the target is to describe the structural specifics of KWH Netz's electricity grid and to disclose the specific challenges in supplying consumers and feeders. The combined results of a long-term infrastructure analysis and an electrical analysis deliver various evaluation opportunities: Vulnerabilities regarding reliability on medium-voltage level are revealed and for the low-voltage level, a grid overview and critical assets are discovered. The “Integrated electrical and long-term infrastructure analysis” for the medium- and low-voltage grid has resulted in well-founded and detailed findings. A sound basis for short-term measures and the development of “optimized” medium- and long-term measures (including optimization of the grid structure reflecting the dependencies between medium- and low-voltage level) has been evolved.