Multiple-risk assessment of water supply, hydropower and environment nexus in the water resources system

Chen, Lu; Huang, Kangdi; Zhou, Jianzhong; Duan, Huan‐Feng; Zhang, Mengjie; Wang, Dangwei; Qiu, Hongya

doi:10.1016/j.jclepro.2020.122057

Cited by 46 publications

(16 citation statements)

References 45 publications

(46 reference statements)

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“…Rapid progress and development of human societies, including economic (industrial localization and glocalization) and population (invigorated by new young families) growth as well as agricultural and industrial activities (special economic zones), have increased water utilization in South Africa. Rising populations and consumption are increasing the demand for domestic water, negatively impacting water availability Chen, et al [122]. Liu, et al [65] note the urgent need to consider trade types and water scarcity when developing water resource allocation and conservation policies in interprovincial trade.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

Dimensions of supply risks in the supply of water: A case of Zet district municipality

Mbhele

Khuzwayo

2023

ijirss

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The purpose of the study is to ascertain water supply risks in a district municipality, in South Africa. It aims to strike a balance between the risk of water supply and demand within the Zet District Municipality’s capacity for integrated water service delivery. Inductive thematic analysis and in-depth interviews with district administrators were used to collect qualitative data as part of an exploratory case study design. The findings from the interpretive philosophy reveal that district municipalities lack the capacity to deliver water services due to a variety of supply chain risks and augmenting water demand from the community. Due to the detrimental effects of water shortages on livelihoods, the district's supply risk management capacities need to be strengthened. The supply chain operations should mitigate supply risks not just in water supply, but in service delivery as a whole by striking a balance between water demand and supply to address supply risks. The supply risks that are recognised should take into account data sharing, supplier agility, adaptability, dependability, and infrastructure quality. The force field analysis created a platform to identify the forces that provide a change in the water supply.

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Section: Discussion Of Resultsmentioning

confidence: 99%

Dimensions of supply risks in the supply of water: A case of Zet district municipality

Mbhele

Khuzwayo

2023

ijirss

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“…However, due to the uneven spatiotemporal distribution of water resources in the catchment, the potential risks of insufficient water supply are also considered. For example, a recent work focused on joint distribution and conditional expectation models to analyze the nexus of water supply, hydropower and environment variables, thereby evaluating multiple risks in water-resource systems [99]. In this work, it was highlighted that for frequencies of hydropower generation higher than 90%, both the expected values of water supply sufficiency and water use sustainability significantly decrease, creating possible risks of water supply inadequacy and environmental damage upstream of dams.…”

Section: Renewable Energy Applicationsmentioning

confidence: 99%

Recent Advances in Low-Carbon and Sustainable, Efficient Technology: Strategies and Applications

et al. 2022

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The COVID-19 pandemic has had a significant impact on the supply chains of traditional fossil fuels. According to a report by the International Energy Agency (IEA) from 2020, oil-refining activity fell by more than the IEA had anticipated. It was also assumed that the demand in 2021 would likely be 2.6 million bpd below the 2019 levels. However, renewable markets have shown strong resilience during the crisis. It was determined that renewables are on track to meet 80% of the growth in electricity demand over the next 10 years and that sustainable energy will act as the primary source of electricity production instead of coal. On the other hand, the report also emphasized that measures for reducing environmental pollution and CO2 emissions are still insufficient and that significant current investments should be further expanded. The Sustainable Development of Energy, Water and Environment Systems (SDEWES) conference series is dedicated to the advancement and dissemination of knowledge on methods, policies and technologies for improving the sustainability of development by decoupling growth from the use of natural resources. The 15th SDEWES conference was held online from 1–5 September 2020; more than 300 reports with 7 special sections were organized on the virtual conference platform. This paper presents the major achievements of the recommended papers in the Special Issue of Energies. Additionally, related studies connected to the above papers published in the SDEWES series are also introduced, including the four main research fields of energy saving and emission reduction, renewable energy applications, the development of district heating systems, and the economic assessment of sustainable energy.

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“…In multi-purpose reservoirs, a Bayesian approach can be a useful tool for analyzing the water balance as a typical risk-benefit problem in water resources management [21,22], given that water supply, hydropower production and environmental water use are conflicted water uses linked by water inflows in the basin. A joint analysis method, the copula method, as well as multivariate distribution functions, are also useful tools to involve these dependences in water resources systems [23,24]. Chen et al (2020) [24], for example, analyzed the water supply, hydropower production and environmental water nexus based on the multivariate distribution functions by establishing joint distributions and conditional expectation models to evaluate risks in the water resources system.…”

Section: Introductionmentioning

confidence: 99%

“…A joint analysis method, the copula method, as well as multivariate distribution functions, are also useful tools to involve these dependences in water resources systems [23,24]. Chen et al (2020) [24], for example, analyzed the water supply, hydropower production and environmental water nexus based on the multivariate distribution functions by establishing joint distributions and conditional expectation models to evaluate risks in the water resources system.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Hydropower Potential Using Bayesian and Stochastic Approaches for Streamflow Simulation and Accounting for the Intermediate Storage Retention

et al. 2022

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Hydropower is the most widely used renewable power source worldwide. The current work presents a methodological tool to determine the hydropower potential of a reservoir based on available hydrological information. A Bayesian analysis of the river flow process and of the reservoir water volume is applied, and the estimated probability density function parameters are integrated for a stochastic analysis and long-term simulation of the river flow process, which is then used as input for the water balance in the reservoir, and thus, for the estimation of the hydropower energy potential. The stochastic approach is employed in terms of the Monte Carlo ensemble technique in order to additionally account for the effect of the intermediate storage retention due to the thresholds of the reservoir. A synthetic river flow timeseries is simulated by preserving the marginal probability distribution function properties of the observed timeseries and also by explicitly preserving the second-order dependence structure of the river flow in the scale domain. The synthetic ensemble is used for the simulation of the reservoir water balance, and the estimation of the hydropower potential is used for covering residential energy needs. For the second-order dependence structure of the river flow, the climacogram metric is used. The proposed methodology has been implemented to assess different reservoir volume scenarios offering the associated hydropower potential for a case study at the island of Crete in Greece. The tool also provides information on the probability of occurrence of the specific volumes based on available hydrological data. Therefore, it constitutes a useful and integrated framework for evaluating the hydropower potential of any given reservoir. The effects of the intermediate storage retention of the reservoir, the marginal and dependence structures of the parent distribution of inflow and the final energy output are also discussed.

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Multiple-risk assessment of water supply, hydropower and environment nexus in the water resources system

Cited by 46 publications

References 45 publications

Dimensions of supply risks in the supply of water: A case of Zet district municipality

Dimensions of supply risks in the supply of water: A case of Zet district municipality

Recent Advances in Low-Carbon and Sustainable, Efficient Technology: Strategies and Applications

Estimation of Hydropower Potential Using Bayesian and Stochastic Approaches for Streamflow Simulation and Accounting for the Intermediate Storage Retention

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