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Title: PV-battery and diesel hybrid system for irrigation of a farm in Patagonia
Authors : Knecht, Raphael
Baumgartner, Franz
Conference details: 33rd EUPVSEC 2017, Amsterdam, September 2017
Publisher / Ed. Institution : ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Issue Date: 2017
License (according to publishing contract) : Not specified
Type of review: Not specified
Language : English
Subjects : Off-Grid; Battery Storage and Control; Hybrid; Islanding; PV Pumping
Subject (DDC) : 333.7: Land, recreational areas and energy
621.04: Energy engineering
Abstract: An existing off-grid irrigation system of a 12’000 ha farm in Patagonia today powered by electrical pumps and diesel gensets, will be extended by a PV plant and a battery system to improve ecological ratings of the products and reduce energy costs. An optimal photovoltaic plant and a battery energy storage system had to be designed. The compiled hourly demand profile served as input to a simulation model of a photovoltaic diesel battery hybrid system. With the given assumptions the PV array should be oriented to north at an inclination of 30°. The analysis of electricity cost indicated the optimal system size of 1800 kWp PV nominal power and 500 kWh of battery capacity. With this system 55.2% of the energy used for irrigation will be provided by the photovoltaic plant in the first year. The electricity cost amount to $0.136 per kWh electrical energy compared to the $0.432 per kWh electrical energy currently produced by the diesel-only system. Further analysis showed high dependency of the electricity cost on the time until connection to the utility grid and its electricity price and future diesel price.
Departement: School of Engineering
Organisational Unit: Institute of Energy Systems and Fluid Engineering (IEFE)
Publication type: Conference Paper
DOI : 10.21256/zhaw-1320
Appears in Collections:Publikationen School of Engineering

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