scholarly journals Designing Nonlinear Price Schedules for Urban Water Utilities to Balance Revenue and Conservation Goals

2016 ◽  
Author(s):  
Frank Wolak
Keyword(s):  
Water Utilities ◽  
Urban Water

scholarly journals Managing Apparent Loss and Real Loss from the Nexus Perspective Using System Dynamics

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 231
Author(s):  
Seo Hyung Choi ◽  
Bongwoo Shin ◽  
Eunher Shin
Keyword(s):  
System Dynamics ◽  
Water Loss ◽  
Management Strategies ◽  
Water System ◽  
Economic Feasibility ◽  
Water Utilities ◽  
Urban Water ◽  
Water Losses ◽  
Urban Water System ◽  
Apparent Loss

When water utilities establish water loss control programs, they traditionally focus on apparent loss rather than real loss when considering economic feasibility in the water sector. There is an urgent need for new management approaches that can address complex relationships and ensure the sustainability of natural resources among different sectors. This study suggests a novel approach for water utilities to manage water losses from the water-energy (WE) Nexus perspective. The Nexus model uses system dynamics to simulate twelve scenarios with the differing status of water loss and energy intensities. This analysis identifies real loss as one of the main causes of resource waste and an essential factor from the Nexus perspective. It also demonstrates that the energy intensity of each process in the urban water system has a significant impact on resource use and transfer. The consumption and movement of resources can be quantified in each process involved in the urban water system to distinguish central and vulnerable processes. This study suggests that the Nexus approach can strongly contribute to quantifying the use and movement of resources between water and energy sectors and the strategic formulation of sustainable and systematic water loss management strategies from the Nexus perspective.

scholarly journals Evolución y perfiles de eficiencia de los organismos operadores de agua potable en México / Evolution and Efficiency Profiles of Urban Water Utilities in Mexico

2011 ◽  
Vol 26 (3) ◽  
pp. 563 ◽  
Author(s):  
América N. Lutz Ley ◽  
Alejandro Salazar Adams
Keyword(s):  
Production Costs ◽  
Water Utilities ◽  
Urban Water ◽  
Per Capita Gdp ◽  
Consumption Level ◽  
Global Efficiency ◽  
Per Capita ◽  
Performance Results

En este trabajo se analiza la eficiencia física, comercial y global de los organismos operadores de agua en las localidades urbanas de México entre 2002 y 2008. A partir de sus puntajes se forman cuatro grupos que se comparan atendiendo a las variables que podrían afectar su desempeño. Los resultados indican que no existen cambios significativos en las eficiencias en este periodo. La eficiencia física es mayor en las localidades grandes, con elevados niveles de consumo, de PIB per cápita y de costos de producción; en cambio la eficiencia comercial y la recaudación por metro cúbico son superiores en las localidades que cuentan con mayor cobertura de micromedición. AbstractIn this paper, physical, commercial, and global efficiency of Mexican urban water utilities between 2002 and 2008 is analyzed. Utilities were grouped in four categories depending on their scores; afterwards the groups were compared in terms of variables that can affect their performance. Results indicate that there are not significant changes in the levels of efficiencies in this period. Physical efficiency is higher in large localities, where consumption level, per capita GDP, and production costs were also greater; whereas commercial efficiency and revenue per cubic meter are greater in localities with higher metering coverage.

scholarly journals Data and Information Systems Management for the Urban Water Infrastructure Condition Assessment

2021 ◽  
Vol 3 ◽  
Author(s):  
Nelson Carriço ◽  
Bruno Ferreira
Keyword(s):  
Information Systems ◽  
Condition Assessment ◽  
Water Utilities ◽  
Urban Water ◽  
Water Infrastructure ◽  
Systems Management ◽  
Maturity Level ◽  
Information Systems Management ◽  
The World ◽  
Vital Component

Most of urban water infrastructure around the world were built several decades ago and nowadays they are deteriorated. So, the assets that constitute these infrastructures need to be rehabilitated. Since most of the assets are buried, water utilities face the challenge of deciding how, where and when to rehabilitate. Condition assessment is a vital component on plan rehabilitation actions and is mostly based on the data collected from the managed networks. This collected data need to be put together in order to be transformed into useful information. Nonetheless, the large amount of assets and data involved makes data and information management a challenging task for water utilities, especially in those with as lower digital maturity level. This paper highlights the importance of data and information systems' management for urban water infrastructure condition assessment based on the authors' experience.

The relative economic efficiency of urban water utilities in regional New South Wales and Victoria

2010 ◽  
Vol 32 (3) ◽  
pp. 439-455 ◽  
Author(s):  
Joel Byrnes ◽  
Lin Crase ◽  
Brian Dollery ◽  
Renato Villano
Keyword(s):  
Economic Efficiency ◽  
New South ◽  
New South Wales ◽  
Water Utilities ◽  
Urban Water ◽  
South Wales

Sustainable, Resilient, and Reliable Urban Water Systems: Making a Case for 'One Water Approach'

2021 ◽  
Author(s):  
Sarin Raj Pokhrel ◽  
Gyan Chhipi-Shrestha ◽  
Kasun Hewage ◽  
Rehan Sadiq
Keyword(s):  
Water Resource Management ◽  
Management Practices ◽  
The United States ◽  
Visionary Leadership ◽  
Water Utilities ◽  
Urban Water ◽  
Water Services ◽  
Rapid Urbanization ◽  
Novel Technologies ◽  
Service Components

An urban water system (UWS) has three main service components: 1) drinking water, 2) wastewater, and 3) stormwater. Historically, each component in urban water development evolved over time with different objectives for “different” types of water. Even today, the trend continues, as different urban water services are managed in silos. This trend is less sustainable, resilient, and reliable mainly because of significant pressures on freshwater supplies exerted by increasing population, demand for high living standards, rapid urbanization, and climate change. To cope with these challenges, the conventional thinking necessitates a change. This paper identifies a number of significant research gaps related to inter-relationships among various UWS service components. An innovative paradigm - One Water Approach (OWA), which considers “urban water” as a single entity, is investigated. Currently, Australia, the United States, and Singapore are leading the pack to implement OWA, whereas only a few Canadian municipalities have embraced OWA at a very basic level. In the European Union nations, Amsterdam (Netherlands) emphasized the need for integrated water resource management in an urban environment. This review highlights the challenges in adopting OWA and also proposes guiding principles in ongoing water management practices. Institutional complexities involving an intricate regulatory structure for different UWS service components, a wider fragmentation in decision making at government levels, and insufficient stakeholder engagement within and between water utilities and other institutions present serious challenges. Various strategies such as, data sharing between water utilities, use of novel technologies (e.g., artificial intelligence, sensor technologies), and visionary leadership at different government levels have been identified as key drivers for the adoption and implementation of OWA. The authors believe that a paradigm shift from ‘conventional’ approach to OWA is needed to increase resiliency and reliability of water services and assist decision-makers of UWSs.

scholarly journals Urban Water Infrastructure Asset Management Plan: Case Study

2019 ◽  
Vol 9 (1) ◽  
pp. 459-467
Author(s):  
Bruno Ferreira ◽  
Nelson J. G. Carriço
Keyword(s):  
Asset Management ◽  
Management Plan ◽  
Supply System ◽  
Water Utilities ◽  
Urban Water ◽  
Plan Implementation ◽  
New Challenges ◽  
Definition Of ◽  
Infrastructure Asset Management

AbstractThe current paper aims the application of the Portuguese infrastructure asset management (IAM) methodology to a case study. The inevitable degradation of urban water infrastructures creates new challenges for water utilities engineers and manager, as they need to decide which components should be rehabilitated to efficiently match the public’s demand, while still providing a qualitative and efficient service that doesn’t compromise the financial integrity of water utilities.This methodology is based on a five-step structured sequence - (i) definition of objectives assessment criteria and metrics; (ii) diagnosis; (iii) plan production; (iv) plan implementation; and (v) monitoring and revision – being structured in three distinct levels of planning and decision (i.e., strategic, tactical and operational). The IAM methodology was applied to a sixty-year-old water supply system (WSS) located in Lisbon’s metropolitan area, Portugal, mainly focused on steps (i) to (iii) and to the tactical level of planning. Results obtained are discussed and the main conclusions are presented.

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