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Energy Management of a Hybrid Photovoltaic-Wind System with Battery Storage: A Case Report

Original scientific paper

Journal of Sustainable Development of Energy, Water and Environment Systems
Volume 7, Issue 3, pp 399-415
DOI: http://dx.doi.org/10.13044/j.sdewes.d6.0233
Salah Ben Mabrouk1 , Salvatore Favuzza2, Diego La Cascia2, Fabio Massaro2, Gaetano Zizzo2
1 Center for Research and Technologies of Energy, Techno-Park Borj Cédriya, Borj Cedria BP No. 95 2050, Hammam-Lif, Tunisie
2 Department of Energy, Information Engineering and Mathematical Models, University of Palermo, Viale delle Scienze Ed.9, 90128 Palermo, Italy

Abstract

This work presents a case report related to the management and the monitoring of a hybrid photovoltaic-wind system with battery energy storage, installed at the administrative offices building of the municipality of Valderice (Italy) within the framework of the Italy-Tunisia ENPI cooperation project Le Développement Durable Dans la Production Energétique Dans le Territoire (DE.DU.ENER.T.). The paper describes the hybrid system and briefly reports the monitoring data for a whole year, comparing the real production with the expected one and evaluating some performance indexes of the system. The performance indexes are very simple and have been defined only with the purpose of showing the advantages of distributed generation. Then, two different control logics for the battery energy storage systems are compared in order to define the most suitable management of the local energy resources, in presence of different Time-of-Use electricity tariffs. In particular, the two logics are compared by varying the difference between the electricity prices in peak hours and in off-peak hours and the rate between the electricity consumption of the building and the battery energy storage’s capacity.

Keywords: Power systems, Photovoltaic systems, Battery energy storage system, Hybrid plants, Batteries, Control logics, Sustainability, Distributed generation.

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