A water-energy balance application with adaptations to a brazilian water supply system





Water; Energy; Water-energy balance; Energy efficiency; Water supply system.


According to the Alliance to Save Energy, between 2 % and 3 % of the total electric energy consumed in the world is used for water pumping in supply systems, with the consumption reduction potential through energy efficiency and conservation measures being estimated at 25 %. In Brazil, the water supply sector corresponds to 2.6 % of the total energy consumed in the country, with pumping systems being responsible for over 90 % of the total energy consumption. It is extremely common to find supersized facilities with pump motor sets operating outside their ideal points, with it being a common practice to perform flow and pressure control through the installation of valves. The use of reducing valves inserts unnecessary pressure drops into the hydraulic system, increasing energy consumption. The objective of this work is to present an energy balance of a study sector of the Autonomous Water and Sewage Service (AWSS) of a municipality in the south of Minas Gerais, Brazil, aiming to elucidate the electric energy consumption of the system and where the reduction in such consumption may occur. For this, we measured data such as the efficiency of the pump motor sets, calculated performance indicators and water loss indices, and applied the energy balance adapted. This work presents an application of a water-energy balance with adaptations to a Brazilian water supply system, under the perspective of the energy efficiency in lift station pump motor sets.


ABES. (2013). Perdas em sistemas de abastecimento de água: diagnóstico, potencial de ganhos com sua redução e propostas de medidas para o efetivo combate. Sumário Executivo. http://www.abes-sp.org.br/arquivos/perdas_resumo.pdf

Ahopelto, S. & Vahala, R. (2020). Cost–benefit analysis of leakage reduction methods in water supply networks. Water, 12 (1), 195. doi:10.3390/w12010195

Alegre, H. et al. (2017). Performance indicators for water supply services. London: IWA Publishing.

ANA. (2018). Abastecimento Urbano de Água. http://www.ana.gov.br/

Andrade, M. R. (2016). Balanço hidroenergético de sistema de distribuição de água aplicado a um setor do município de Cambuí - MG. Master’s Thesis. https://repositorio.unifei.edu.br/xmlui/handle/123456789/494

Aznar-Sánchez, J. A. et al. (2018). Mining waste and its sustainable management: Advances in worldwide research. Minerals, 8 (7), 284. doi: 10.3390/min8070284

Baleta, J. et al. (2019). Integration of energy, water and environmental systems for a sustainable development. Journal of cleaner production, 215 (1), 1424-1436. doi:10.1016/j.jclepro.2019.01.035

Bieber, N. et al. (2018). Sustainable planning of the energy-water-food nexus using decision making tools. Energy Policy, 113 (1), 584-607. doi:10.1016/j.enpol.2017.11.037

Britton, T. C. et al. (2013). Smart metering: Enabler for rapid and effective post meter leakage identification and water loss management. Journal of Cleaner Production, 54 (1), 166–176. doi:10.1016/j.jclepro.2013.05.018

Cantele, S. et al. (2018). A new framework for assessing the sustainability reporting disclosure of water utilities. Sustainability, 10 (2), 433. doi:doi.org/10.3390/su10020433

Chini, C. M., & Stillwell, A. S. (2018). The state of US urban water: data and the energy‐water nexus. Water Resources Research, 54 (3), 1796-1811. doi:

Coelho, B. &, Andrade-Campos, A. (2014). Efficiency achievement in water supply systems - A review. Renewable and Sustainable Energy Reviews, 30 (2), 59–84, 2014. doi:10.1016/j.rser.2013.09.010

Goulart, T. D. C. (2015) Estudos de Aprimoramento de Algoritmo de Calibração e Aplicação em Rede de Distribuição de Água de Cambuí (MG). Master’s Thesis. https://repositorio.unifei.edu.br/xmlui/handle/123456789/147

Krueger, E. H. et al. (2020). Balancing security, resilience, and sustainability of urban water supply systems in a desirable operating space. Environmental Research Letters, 15 (3), 22. doi:10.1088/1748-9326/ab6c2d

Lambert, A. &, Hirner, W. (2000). Losses from Water Supply Systems: Standard Terminology and Recommended Performance Measures. IWA the blue pages, 10 (3), 1–13.

Lee, S. et al. (2021). Setting future water rates for sustainability of a water distribution system. Journal of Water Resources Planning and Management, 147 (2), 13. doi:10.1061/(ASCE)WR.1943-5452.0001313

Luna, T. et al. (2019). Improving energy efficiency in water supply systems with pump scheduling optimization. Journal of cleaner production, 213 (3), 342-356. doi:10.1016/j.jclepro.2018.12.190

Mamade, A. et al. (2017). A comprehensive and well tested energy balance for water supply systems. Urban Water Journal, 14 (8), 853–861. doi:10.1080/1573062X.2017.1279189

Mamade, A. et al. (2018a). Assessing the Impact of Network Layout on Energy Efficiency, Water Losses and Water Quality in Water Supply. WDSA/CCWI Joint Conference Proceedings. Retrieved Sep 21, from https://ojs.library.queensu.ca

Mamade, A. et al. (2018b). Top-down and bottom-up approaches for water-energy balance in Portuguese supply systems. Water, 10 (5), 577. doi:10.3390/w10050577

Mutikanga, H. E. et al. (2009). Water loss management in developing countries: Challenges and prospect. Journal - American Water Works Association, 101 (12), 57–68. doi:10.1002/j.1551-8833.2009.tb10010.x

Oikonomou, K. & Parvania, M. (2018). Optimal coordination of water distribution energy flexibility with power systems operation. IEEE Transactions on Smart Grid, 10 (1), 1101-1110. doi:10.1109/TSG.2018.2824308

Razmjoo, A. et al. (2020). The main role of energy sustainability indicators on the water management. Modeling Earth Systems and Environment, 6 (3), 1419-1426. doi:10.1007/s40808-020-00758-1

Rodrigues, R. C. (2012). Análise do desempenho hidroenergético de sistemas de abastecimento de água do município de Marabá/PA. Master’s Thesis. http://repositorio.ufpa.br/jspui/handle/2011/3546

Sgroi, M. et al. (2018). Feasibility, sustainability and circular economy concepts in water reuse. Current opinion in environmental Science & Health, 2 (4), 20-25. doi:10.1016/j.coesh.2018.01.004

Song, M. et al. (2018). Water resources utilization efficiency and influence factors under environmental restrictions. Journal of Cleaner Production, 184 (5), 611-621. doi:10.1016/j.jclepro.2018.02.259




How to Cite

SILQUEIRA, M. G. .; SILVA, F. das G. B. da .; SILVA, A. T. Y. L. .; BARBEDO, M. D. G. . A water-energy balance application with adaptations to a brazilian water supply system. Research, Society and Development, [S. l.], v. 10, n. 10, p. e380101019039, 2021. DOI: 10.33448/rsd-v10i10.19039. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/19039. Acesso em: 25 oct. 2021.