Energy efficiency in water distribution systems - A path to an ideal network - AGS experience

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Courtesy of IWA Publishing

Water utilities’ responsibility to deliver quality and reliable service under a sustainable basis requires an increasingly efficient management and therefore an asset management strategy that ensures high levels of service, safe and reliable drinking-water quality and an appropriate network performance.

In Portugal, IAM gave a step forward with a recent Portuguese decree law (Decreto-Lei n.º 194/2009), supported by the National Regulator’s (ERSAR) technical guides (Alegre and Covas 2010; Almeida and Cardoso 2010), where water and wastewater utilities serving more than 30,000 inhabitants shall promote the development of IAM plans. This requirement is an important driver towards suitable long term balance between cost, performance and risk at strategic, tactical and operational levels concerning three different perspectives: engineering, information and management (Alegre 2008). In order to achieve this balance, a correct performance assessment of WDS supported on a good knowledge of the assets, reliable network models and adequate measures is essential.

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