Design and performance assessment of a pumped hydro power energy storage connected to a hybrid system of photovoltaics and wind turbines

Alqahtani, B., Yang, J. and Paul, M. C. (2023) Design and performance assessment of a pumped hydro power energy storage connected to a hybrid system of photovoltaics and wind turbines. Energy Conversion and Management, 293, 117444. (doi: 10.1016/j.enconman.2023.117444)

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Worldwide, the overdependence on conventional power plants for electricity generation has been one of the most significant economic and environmental challenges. Renewable energy sources have become the most viable option to overcoming this issue. Recently, a hybrid renewable energy system consisting of wind turbines and photovoltaics combined with a pumped hydroelectric energy storage system has received considerable interest. However, neglecting crucial parameters, such as head losses and evaporation rate, might reduce the accuracy of the total simulation performance, resulting in an underestimation of the correct size of each component. This study investigates this issue by proposing a robust approach with a strategy to establish the ideal pipe design through an in-depth techno-economic assessment. A comparative analysis between two different scenarios in which one considers head loss and the other does not is carried out. A wide range of proposed system configurations has been thoroughly investigated. The essential performance indicators employed for designing the proposed system are the renewable energy fraction and the loss of renewable energy, and the results reveal that these two indicators have improved by approximately 8.6% and 3%, respectively. The most significant annual variation between the two scenarios regarding the total demand satisfied by the proposed system and the amount of renewable energy loss is 218.23 GWh and 89.39 GWh, respectively. The pipe efficiency at the pumping and generating modes, which is determined through a sensitivity analysis, ranges between 91-99% and 76–95%, respectively. These findings could assist designers in making initial assumptions about such parameters with reasonable confidence.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Paul, Professor Manosh and Yang, Dr Jin and alqahtani, bader
Creator Roles:
Alqahtani, B.Conceptualization, Methodology, Software, Validation, Investigation, Formal analysis, Visualization, Writing – original draft, Writing – review and editing
Yang, J.Supervision, Writing – review and editing
Paul, M. C.Conceptualization, Supervision, Writing – review and editing, Project administration
Authors: Alqahtani, B., Yang, J., and Paul, M. C.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Energy Conversion and Management
ISSN (Online):1879-2227
Published Online:27 July 2023
Copyright Holders:Copyright © 2023 The Author(s)
First Published:First published in Energy Conversion and Management 293:117444
Publisher Policy:Reproduced under a Creative Commons license

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