Author(s): Naime Ahmadi; Alexander Kies; Vedran Peric; Corneliu Barbu
Linked Author(s):
Keywords: No Keywords
Abstract: The transition toward a low-carbon European energy system requires the integration of large shares of variable renewable energy sources (RES), particularly wind and solar. However, the inherent intermittency of these technologies introduces significant operational challenges related to system flexibility, balancing, and reliability. This study investigates the potential of expanding hydropower storage capacity—specifically retrofited pumped hydro storage—to enhance renewable integration at the European scale. The objective is to assess the techno-economic impact of additional hydro-storage capacity on system operation, generation mix, and total system costs under CO₂ emission constraints.
Year: 2026