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Performance benchmark of thermal energy storage concepts in concentrating solar power

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  • Tagle-Salazar, Pablo D.
  • Cabeza, Luisa F.
  • Prieto, Cristina

Abstract

Thermal energy storage (TES) plays a critical role in enhancing the efficiency and dispatchability of concentrating solar power (CSP) plants by mitigating solar energy intermittency. Although molten salts remain the dominant TES solution, alternative systems such as solid-state and latent heat storage offer promising advantages. This study analyses the performance impact of different TES technologies—two-tank molten salt, concrete-based storage, and phase change materials (PCMs)—when integrated into CSP systems. By comparing key performance indicators under identical operating conditions, this study provides insights into the suitability of each TES technology for CSP plant operations. The results highlight the trade-offs between energy yield, efficiency, and footprint. All three concepts demonstrated comparable performance at both the system and TES levels, with disparities of less than 3 %. The advantage of PCM lies in its substantial volume reduction of approximately 27 % compared to molten salt, whereas concrete TES achieves similar outcomes with a slight increase in volume relative to molten salt TES volume.

Suggested Citation

  • Tagle-Salazar, Pablo D. & Cabeza, Luisa F. & Prieto, Cristina, 2026. "Performance benchmark of thermal energy storage concepts in concentrating solar power," Applied Energy, Elsevier, vol. 404(C).
    • Handle: RePEc:eee:appene:v:404:y:2026:i:c:s0306261925019130
    DOI: 10.1016/j.apenergy.2025.127183
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    1. Tao, Y.B. & He, Ya-Ling, 2018. "A review of phase change material and performance enhancement method for latent heat storage system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 93(C), pages 245-259.
    2. Gamil, Ahmed & Li, Peiwen & Khammash, Abdel Latif & Ali, Babkir, 2024. "Comparative techno-economic and environmental analysis of a relocatable solar power tower for low to medium temperature industrial process heat supply," Energy, Elsevier, vol. 304(C).
    3. Miró, Laia & Oró, Eduard & Boer, Dieter & Cabeza, Luisa F., 2015. "Embodied energy in thermal energy storage (TES) systems for high temperature applications," Applied Energy, Elsevier, vol. 137(C), pages 793-799.
    4. Mostafavi Tehrani, S. Saeed & Shoraka, Yashar & Nithyanandam, Karthik & Taylor, Robert A., 2018. "Cyclic performance of cascaded and multi-layered solid-PCM shell-and-tube thermal energy storage systems: A case study of the 19.9 MWe Gemasolar CSP plant," Applied Energy, Elsevier, vol. 228(C), pages 240-253.
    5. Liu, Chunyu & Zheng, Xinrui & Yang, Haibin & Tang, Waiching & Sang, Guochen & Cui, Hongzhi, 2023. "Techno-economic evaluation of energy storage systems for concentrated solar power plants using the Monte Carlo method," Applied Energy, Elsevier, vol. 352(C).
    6. Kenisarin, Murat M., 2010. "High-temperature phase change materials for thermal energy storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(3), pages 955-970, April.
    7. Prieto, Cristina & Cabeza, Luisa F., 2019. "Thermal energy storage (TES) with phase change materials (PCM) in solar power plants (CSP). Concept and plant performance," Applied Energy, Elsevier, vol. 254(C).
    8. Romaní, Joaquim & Gasia, Jaume & Solé, Aran & Takasu, Hiroki & Kato, Yukitaka & Cabeza, Luisa F., 2019. "Evaluation of energy density as performance indicator for thermal energy storage at material and system levels," Applied Energy, Elsevier, vol. 235(C), pages 954-962.
    9. Ktistis, Panayiotis K. & Agathokleous, Rafaela A. & Kalogirou, Soteris A., 2021. "Experimental performance of a parabolic trough collector system for an industrial process heat application," Energy, Elsevier, vol. 215(PA).
    10. Yao, Zhihao & Wang, Zhifeng & Lu, Zhenwu & Wei, Xiudong, 2009. "Modeling and simulation of the pioneer 1MW solar thermal central receiver system in China," Renewable Energy, Elsevier, vol. 34(11), pages 2437-2446.
    11. Tagle-Salazar, Pablo D. & Cabeza, Luisa F. & Prieto, Cristina, 2026. "Advancing sensible heat storage: A novel transient heat transfer model for concrete-based TES modules for CSP applications," Renewable Energy, Elsevier, vol. 256(PH).
    12. González-Roubaud, Edouard & Pérez-Osorio, David & Prieto, Cristina, 2017. "Review of commercial thermal energy storage in concentrated solar power plants: Steam vs. molten salts," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 133-148.
    13. Liu, Ming & Jacob, Rhys & Belusko, Martin & Riahi, Soheila & Bruno, Frank, 2021. "Techno-economic analysis on the design of sensible and latent heat thermal energy storage systems for concentrated solar power plants," Renewable Energy, Elsevier, vol. 178(C), pages 443-455.
    14. Baigorri, Javier & Zaversky, Fritz & Astrain, David, 2023. "Massive grid-scale energy storage for next-generation concentrated solar power: A review of the potential emerging concepts," Renewable and Sustainable Energy Reviews, Elsevier, vol. 185(C).
    15. Guccione, Salvatore & Guedez, Rafael, 2024. "Techno-economic analysis of power-to-heat-to-power plants: Mapping optimal combinations of thermal energy storage and power cycles," Energy, Elsevier, vol. 312(C).
    16. Sara Pascual & Pilar Lisbona & Luis M. Romeo, 2022. "Thermal Energy Storage in Concentrating Solar Power Plants: A Review of European and North American R&D Projects," Energies, MDPI, vol. 15(22), pages 1-32, November.
    17. Zhao, Bing-chen & Cheng, Mao-song & Liu, Chang & Dai, Zhi-min, 2017. "Cyclic thermal characterization of a molten-salt packed-bed thermal energy storage for concentrating solar power," Applied Energy, Elsevier, vol. 195(C), pages 761-773.
    18. He, Ya-Ling & Qiu, Yu & Wang, Kun & Yuan, Fan & Wang, Wen-Qi & Li, Ming-Jia & Guo, Jia-Qi, 2020. "Perspective of concentrating solar power," Energy, Elsevier, vol. 198(C).
    19. Tagle-Salazar, Pablo D. & Prieto, Cristina & López-Román, Anton & Cabeza, Luisa F., 2023. "A transient heat losses model for two-tank storage systems with molten salts," Renewable Energy, Elsevier, vol. 219(P1).
    20. Laura Boquera & David Pons & Ana Inés Fernández & Luisa F. Cabeza, 2021. "Characterization of Supplementary Cementitious Materials and Fibers to Be Implemented in High Temperature Concretes for Thermal Energy Storage (TES) Application," Energies, MDPI, vol. 14(16), pages 1-26, August.
    21. Jiang, Rui & Li, Ming-Jia & Wang, Wen-Qi & Li, Meng-Jie & Ma, Teng, 2024. "A novel numerical methodology of solar power tower system for dynamic characteristics analysis and performance prediction," Energy, Elsevier, vol. 292(C).
    22. Oró, Eduard & Gil, Antoni & de Gracia, Alvaro & Boer, Dieter & Cabeza, Luisa F., 2012. "Comparative life cycle assessment of thermal energy storage systems for solar power plants," Renewable Energy, Elsevier, vol. 44(C), pages 166-173.
    23. Cristina Prieto & Adrian Blindu & Luisa F. Cabeza & Juan Valverde & Guillermo García, 2023. "Molten Salts Tanks Thermal Energy Storage: Aspects to Consider during Design," Energies, MDPI, vol. 17(1), pages 1-19, December.
    24. Jacob, Rhys & Belusko, Martin & Inés Fernández, A. & Cabeza, Luisa F. & Saman, Wasim & Bruno, Frank, 2016. "Embodied energy and cost of high temperature thermal energy storage systems for use with concentrated solar power plants," Applied Energy, Elsevier, vol. 180(C), pages 586-597.
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