Pv installation of on-grid type in comparison with pv installation of off-grid type

Heat Transfer and Renewable Sources of Energy 2010 J. Mikielewicz and A. Stachel (Editors)

ZBIGNIEW ZAPAŁOWICZ*), SŁAWOMIR KONIECZNY**)
*) Department of Heat Enginnering, Faculty of Mechanical Engineering and Mechatronics
**) Department of Economic Politics and Market, Faculty of Economics
West Pomeranian University of Technology, Szczecin,
al. Piastów 17, 70-310 Szczecin, Poland
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ABSTRAKT: The paper presents a comparison between electric energy production in photovoltaic (PV) installations of on-grid and of off-grid types in June 2009. PV installations are located on properties of the West Pomeranian University of Technology in Szczecin (ZUT). PV installation of on-grid type is located in the building of Department of Heat Engineering (KTC), whereas two installations of off-grid type are located in the Training and Research Center for Renewable Energy Sources in Ostoja by Szczecin (Ostoja).

1. Introduction

Plans of European Union assume dynamic development of photovoltaic technologies in the present century [2]. The plans demand on one hand a development of new photovoltaic cells, as well as lowering technological costs of producing cells, panels, and the other elements of PV installations [1]. On the other hand, it is necessary to verify the working parameters of the installations in question in sites of their locations. In the West Pomeranian University of Technology (ZUT), PV installation of on-grid type [3] has already been monitored for 11 years in the building of Department of Heat Engineering (KTC). New research possibilities were created in November 2008, after two autonomous PV installations of off-grid type were were set in operation in the Training and Research Center for Renewable Energy Sources in Ostoja by Szczecin (Ostoja). The installations were financed from sources of European Regional Development Fund within the programme of INTERREG IIIA Poland (West Pomeranian Voivodeship – Meklemburg Vorpommern/Brandenburg). The aim of the present paper is to compare the electric energy production by the above installations in June 2009.