TECHNICAL COMPARISON AND EVALUATION OF A PUMPED THERMAL ENERGY STORAGE WITH TWO DIFFERENT DESIGNS

Increased worldwide demand for energy (especially electricity), rising energy costs, and heightened environmental concerns are factors that continually press for the adoption of technologies to exploit renewable energy sources (RES). In order to adopt these systems, large-scale energy storage systems are needed to ensure the security of supply in energy systems due to the increasing share of renewable energy sources in the