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  • Renewable hydropower generation as a co-benefit of balanced urban water portfolio management and flood risk mitigation

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    Author(s)
    Sahin, Oz
    Stewart, Rodney A
    Giurco, Damien
    Porter, Michael G
    Griffith University Author(s)
    Stewart, Rodney A.
    Sahin, Oz
    Year published
    2017
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    Abstract
    Understanding energy–water system interactions is critical to the effective management of urban infrastructure. This paper explores the potential for hydropower as a co-benefit in a novel operating regime for Sydney׳s main water reservoir (Warragamba Dam). Hydropower could be generated as part of storage level management in the reservoir aimed at introducing flood retention ‘airspace’ (to mitigate downstream flood risk from extreme rainfall) whilst augmenting the use of installed desalination capacity to maintain secure supplies of water. A purpose-built systems dynamics model provides the mechanism for evaluating and comparing ...
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    Understanding energy–water system interactions is critical to the effective management of urban infrastructure. This paper explores the potential for hydropower as a co-benefit in a novel operating regime for Sydney׳s main water reservoir (Warragamba Dam). Hydropower could be generated as part of storage level management in the reservoir aimed at introducing flood retention ‘airspace’ (to mitigate downstream flood risk from extreme rainfall) whilst augmenting the use of installed desalination capacity to maintain secure supplies of water. A purpose-built systems dynamics model provides the mechanism for evaluating and comparing future operating scenarios over a 25 year period (i.e. until 2040). Importantly, the findings reveal the potential for desalination plants, integrated into a populous city׳s water supply network, to satisfy a much broader planning agenda. Specifically, the study provides evidence that Sydney’s interdependent goals of deferring capital intensive flood storage works, maintaining water security, better utilising existing desalination and hydropower assets, and increasing renewable energy generation can be achieved through applying systems thinking to a complex citywide water planning problem. The work also makes a valuable contribution to the energy–water nexus literature at the under-explored city-scale.
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    Journal Title
    Renewable and Sustainable Energy Reviews
    DOI
    https://doi.org/10.1016/j.rser.2016.01.126
    Copyright Statement
    © 2016 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Engineering
    Water resources engineering
    Publication URI
    http://hdl.handle.net/10072/142160
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    • Journal articles

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