DBPapers
DOI: 10.5593/SGEM2016/B31/S12.060

IMPROVING EFFICIENCY OF A WATER SUPPLY SYSTEM BASED ON ENERGY TARRIFS

V. Piraianu, G. Dumitran, L.Vuta, C. Dragoi
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-61-2 / ISSN 1314-2704, June 28 - July 6, 2016, Book3 Vol. 1, 459-464 pp

ABSTRACT
The operation of water supply systems is continuously challenged to become more efficient, reliable and cost effective to fulfill its main objective – permanent supply of high quality water to the end-users. This subject is of great interest for the researchers, engineers and decision makers working in this domain, especially in the field of optimal design of water supply networks, risk assessment, water quality assurance and also in cost reduction and optimization, in order to increase financial efficiency of this utility.
In this paper, a study on an existing small city water supply system is completed in order to analyze the opportunity to provide the system with a reservoir configuration which can be used to assure the water demand. Two scenarios regarding the electricity consumption of a water distribution company are considered: the first one assumes the use of the pumping stations according to the demand curve to meet the request of the users, e.g. the electricity costs are the ones corresponding to each trading period (e.g. base, peak, night or according to the prices in the day ahead market for each trading interval); the second scenario is based on the use of the night tariffs in order to pump the necessary water in upper reservoirs which will assure the continuously supply of water during the day.

Keywords: water supply systems, electricity market, electricity costs, storage reservoirs