scholarly journals Economies of Scale and Scope in Australian Urban Water Utilities

2011 ◽  
Author(s):  
Andrew C. Worthington ◽  
Helen Higgs
Keyword(s):  
Economies Of Scale ◽  
Water Utilities ◽  
Urban Water

scholarly journals Examining the economies of scale of water and sewage utilities in the urban sector: the case of Israel

Water Policy ◽  
2016 ◽  
Vol 19 (2) ◽  
pp. 257-270 ◽  
Author(s):  
Doron Lavee ◽  
Sefi Bahar
Keyword(s):  
Economies Of Scale ◽  
Returns To Scale ◽  
Water Utilities ◽  
Distinct Advantage ◽  
Optimal Size ◽  
Urban Water ◽  
Water Production ◽  
Translog Cost Function ◽  
Water Sector ◽  
Urban Sector

This study applies econometric tools to examine the economies of scale of the water and sewage utilities corporation (utilities) in the urban sector in Israel, and to find whether reducing the number of utilities will maximize efficiency in the urban water sector. Using an econometric analysis of an elasticity Translog cost function, which allows the estimation of returns to scale, the authors examined the optimal size for water and sewage utilities in Israel, based on panel data of 51 utilities. According to the study's results, there is a distinct advantage of economies of scale in Israel's water utilities, and the current distribution of the urban water sector in Israel is characterized by inefficiency and high cost. The results indicate that reducing the number of utilities will achieve an increase in water quantities by utility, and the costs of water production will decline due to economies of scale.

scholarly journals Economies of scale and scope in Australian urban water utilities

2014 ◽  
Vol 31 ◽  
pp. 52-62 ◽  
Author(s):  
Andrew C. Worthington ◽  
Helen Higgs
Keyword(s):  
Economies Of Scale ◽  
Water Utilities ◽  
Urban Water

Economic effects of the consolidation of water utilities in Japan

2014 ◽  
Vol 14 (5) ◽  
pp. 909-916 ◽  
Author(s):  
Masao Shibuya ◽  
Francesc Hernández-Sancho ◽  
María Molinos-Senante
Keyword(s):  
Water Management ◽  
Economies Of Scale ◽  
Economic Effects ◽  
Water Utilities ◽  
Small Scale ◽  
Urban Water ◽  
Urban Water Management ◽  
Empirical Application ◽  
Japanese Water

Water utilities are affected by economies of scale. However, in Japan most water utilities are small-scale water services. Therefore, they face enormous difficulties in terms of financial and personnel resources. To take advantage of economies of scale, the consolidation of water utilities has been promoted since 1965 by Japanese water authorities. The measure has been successful to some extent; nevertheless, consolidation has not progressed in recent years as was expected. This paper identifies the main barriers that hinder the consolidation of water utilities in Japan and describes the new promotion plan for the consolidation of water utilities developed by the Japan Water Works Association. To assess the economic effects of consolidation, an empirical application is carried out involving four real Japanese cities. The results will be useful to water authorities considering consolidation in the long-term planning of urban water management.

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.

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