Water Supply Infrastructure Investments RequireAdaptive Financial Assessment: Evaluation of Coupled Financial and Water Supply Dynamics

Gorelick, David E.; Gold, David V.; Asefa, Tirusew; Svrdlin, Sandro; Wang, Hui; Wanakule, Nisai; Reed, Patrick M.; Characklis, Gregory W.

doi:10.1061/jwrmd5.wreng-5863

Cited by 7 publications

(5 citation statements)

References 62 publications

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“…These factors are expected to further widen the envelope of uncertainty around aggregate and partner-level impacts and exacerbate the challenge of designing robust partnerships. Future extensions of this work should also consider the role of contractual innovations, environmental impact bonds, and adaptive risk management strategies in redistributing and reducing the partner-level nancial risks associated with cooperative infrastructure investments 34,[71][72][73][74] . Lastly, it is important to note that different water providers will have different abilities to pay for infrastructure and different vulnerabilities to nancial risk based on their underlying customer bases and political contexts.…”

Section: Discussionmentioning

confidence: 99%

Resilient water infrastructure partnerships in institutionally complex systems face challenging supply and financial risk tradeoffs

Hamilton

Reed

Gupta

et al. 2023

Preprint

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As regions around the world invest billions in new infrastructure to overcome increasing water scarcity, better guidance is needed to facilitate cooperative planning and investment in institutionally complex and interconnected water supply systems. This work combines detailed water resource system ensemble modeling with multiobjective intelligent search to explore highly uncertain infrastructure investment partnership design tradeoffs in the context of ongoing canal rehabilitation and groundwater banking in California. We highlight that severe tradeoffs can emerge between conflicting goals related to water supply deliveries, partnership size, and the underlying financial risks associated with cooperative infrastructure investments. We demonstrate how hydroclimatic variability and institutional complexity create significant uncertainty in realized water supply benefits and the potential for strong heterogeneity in partners’ financial risks that threaten infrastructure investment partnership viability. Importantly, the partnerships discovered by our multiobjective intelligent search framework are found to deliver substantially higher water supply benefits with a fraction of the financial risk compared to status quo planning processes. This work has important implications globally for efforts to use cooperative infrastructure investments to enhance the resilience and financial stability of water supply systems confronting increasing competition for scarce resources.

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Section: Discussionmentioning

confidence: 99%

Resilient water infrastructure partnerships in institutionally complex systems face challenging supply and financial risk tradeoffs

Hamilton

Reed

Gupta

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Often, global water crises are mainly caused by poor governance, despite the presence of important factors such as natural limitations in water supply, lack of funding and institutional problems [41]. The management of water resources requires a constant balance between the investments necessary to guarantee a reliable water supply and the entrepreneurial needs of the water operators, without losing sight of the interests of the entire community [42]. To face this challenge, it is necessary to adopt an integrated perspective that takes into account the different interests at stake.…”

Section: Discussionmentioning

confidence: 99%

Multicriteria Decision Making and Water Infrastructure: An Application of the Analytic Hierarchy Process for a Sustainable Ranking of Investments

2023

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The United Nations SDG6 goal of ensuring universal access to safe drinking water and sanitation by 2030 will require increased investment in the rehabilitation and maintenance of water infrastructure. In Italy, the water sector has not yet reached the performance of other European countries. The hierarchization of investments is essential for identifying priorities and efficiently allocating resources. This issue is part of the debate on the reconciliation of public and private needs in the management of water services. The present research proposes a model based on the analytic hierarchy process (AHP). Taking into account the design alternatives considered optimal that contribute to the resolution of territorial criticalities, the model organizes them in a ranking that indicates the chronological priorities to be respected in the investments to be made. The evaluation criteria are set in compliance with the norms defined by the National Authority (ARERA). The model is tested on a water manager in the Campania region. Among the main results, it is found that the two extremes of the ranking are shared between the two actors involved in the investment strategy (the private operator and public regulator). The model represents an effective tool for identifying shared planning strategies between public and private operators.

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“…Population growth is a major element influencing water demand predictions. Population expansion can increase water consumption, putting strain on the current water delivery infrastructure [32,33]. As a result, reliable population prediction factors/variables collected from the Ethiopian Central Statistical Agency (CSA) as tabulated in Table 1 are required to guarantee that the water delivery system can satisfy future water demand.…”

Section: Introductionmentioning

confidence: 99%

Future potable water supply demand projection under climate change and socioeconomic scenarios: A case of Gshba subbasin, Northern Ethiopia

Gebreyohannes Hiben,

Gebeyehu Awoke,

Adugna Ashenafi

2024

Int. Res. J. multidiscip. Technovation

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This paper aims to quantify the subbasin’s potable water supply demand forecast from 2023 to 2050 under various scenarios of climate change and socioeconomic development. The variability of the climate and the resulting problems with urbanization threaten the availability of water resources, especially in less developed countries like Ethiopia. Thus, the main objective of this study is showing the necessary to determine the amount of water needed in advance, in order to comply with the availability of water resources within a specified future period under different scenarios. Our indicator-based approach used a multicriteria decision-making technique. Accordingly, several important variables were considered, including climatological, anthropological, demographic, socioeconomic, and economic variables, in addition to water engineering-related factors (e.g. Water losses). The method also considered a number of factors, such as unexpected and extreme temperature changes, and forecasting factors studied by the Ethiopian Ministry of Water and Energy. The projected population in the subbasin is estimated at 2.52 million, so the total projected water supply demand i.e., for domestic, non-domestic, industrial, commercial, public, and institutional is approximately 126.53 MCM/yr by 2050. Our results revealed how changes in both climatic and socioeconomic factors strongly influence future water resource system performance, and this will help the water services provider better prioritize the refurbishment of existing infrastructure and investment in new infrastructure, and more importantly, manage the subbasin effectively by introducing resilient adaptation options.

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Water Supply Infrastructure Investments RequireAdaptive Financial Assessment: Evaluation of Coupled Financial and Water Supply Dynamics

Cited by 7 publications

References 62 publications

Resilient water infrastructure partnerships in institutionally complex systems face challenging supply and financial risk tradeoffs

Resilient water infrastructure partnerships in institutionally complex systems face challenging supply and financial risk tradeoffs

Multicriteria Decision Making and Water Infrastructure: An Application of the Analytic Hierarchy Process for a Sustainable Ranking of Investments

Future potable water supply demand projection under climate change and socioeconomic scenarios: A case of Gshba subbasin, Northern Ethiopia

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