| Abstract |
HorizonEU funded nGEL Project aims to add the aspect of flexibility to geothermal power plants by converting them into tri-generation power plants. This is to be achieved by providing heating, cooling and power generation flexibly by the utilization of equipments such as thermal energy storage (TES), cold thermal energy storage (CTES), absorption chiller and various heat exchangers for heat transfer purposes. Project explores the integration of TES to enhance the flexibility and efficiency of geothermal power generation at the Kızıldere-2 (KZD-2) Geothermal Power Plant. This study provides an overview of the TES concept within nGEL, focusing on its role in enabling dynamic power adjustments to meet grid demand fluctuations. One of the key aspects of the project is utilizing TES during low demand period for storing thermal energy which will be used during peak demand period, improving responsiveness and market participation of a base load geothermal power plant. A critical challenge in TES implementation is ensuring seamless integration with the existing plant infrastructure. This study examines site-specific requirements, including modifications to heat exchange and storage systems, and potential impacts on overall power generation of the power plant. Alongside technical feasibility, the economic perspective of TES deployment is broadly analyzed, evaluating investment costs, operational benefits, and projected return on investment. The study considers revenue generation through enhanced capacity availability, participation in ancillary services, and improved grid reliability. By combining technical and financial assessments, this work highlights the potential of TES in advancing flexible and sustainable geothermal power generation. |