American Society of Civil Engineers

Losses Reduction and Energy Production in Water-Distribution Networks

by Nicola Fontana, (Associate Professor, Dept. of Engineering Univ. of Sannio, Piazza Roma 21, 82100 Benevento, Italy. E-mail:, Maurizio Giugni, (corresponding author), (Full Professor, Dept. of Hydraulic, Geotechnical and Environmental Engineering, Univ. of Naples Federico II, Via Claudio 21, 80125 Naples, Italy. E-mail:, and Davide Portolano, Ph.D., (Engineer, Centre of Environmental Research C.I.R.AM., Univ. of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy. E-mail:

Journal of Water Resources Planning and Management, Vol. 138, No. 3, May/June 2012, pp. 237-244, (doi:

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Document type: Journal Paper
Discussion: by E. Cabrera E-mail: and et al.    (See full record)
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Abstract: During the past few years, issues concerning sustainable management of water distribution systems have attracted interest through an integrated policy aimed at reducing leakage through a pressure management strategy. Pressure reducing valves (PRVs) are often used in water networks to prevent the downstream hydraulic grade from exceeding a set value, although they must be adequately located to maximize their effectiveness. In recent years, the application of turbines or pumps operating as turbines (PATs) appeared as an alternative and sustainable solution to control network pressure and produce energy. In the present paper, PRVs and PATs were used within a district in a Naples’ water distribution network and showed large potential revenues and an attractive capital payback period.

ASCE Subject Headings:
Water distribution systems
Energy efficiency
Sustainable development

Author Keywords:
Water distribution networks
Leaks reduction
Energy saving policy
Pressure reducing valve (PRV)
Pump as turbine (PAT)