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Simulation and evaluation of pumped hydropower storage (PHPS) system at Kastraki reservoir

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  • Manikas, Konstantinos
  • Skroufouta, Sofia
  • Baltas, Evangelos

Abstract

PHPS is a mature energy storage technology, leading to more efficient energy management and further integration of Renewable Energy Sources (RES). This paper investigates the implementation of such a system at Kastraki, Greece, combined with a second upstream reservoir with a total capacity of 10 hm3 and evaluates its efficiency. The position and the geometric characteristics of the second reservoir are determined with ArcGIS. When excess of energy exists, water is pumped from Kastraki reservoir and stored in the upper one. Otherwise, the stored water is used for energy production. The simulation is performed for 40 years with a monthly time step. Furthermore, another simulation for a typical day in July is conducted, when water and energy needs are increased. The system is evaluated in terms of covering the water supply and energy needs, as well as in terms of efficient energy management. Several results can be obtained, as follows: i) the reliability of the PHPS system for the coverage of monthly water supply and irrigation needs is 82.84 %. ii) The coverage of water supply needs for a typical day in July is 99.99 %. iii) The average monthly coverage of energy needs amounts to 83.86 %.

Suggested Citation

  • Manikas, Konstantinos & Skroufouta, Sofia & Baltas, Evangelos, 2024. "Simulation and evaluation of pumped hydropower storage (PHPS) system at Kastraki reservoir," Renewable Energy, Elsevier, vol. 222(C).
    • Handle: RePEc:eee:renene:v:222:y:2024:i:c:s0960148123018037
    DOI: 10.1016/j.renene.2023.119888
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