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Performance of Thirty Years Stand Alone Photovoltaic System
The use of Photovoltaic systems as a stand-alone power supply in Libyan telecommunication networks has been in use since 1979. A pilot project was put in work in 1979-1980 to supply electricity for telecommunication repeater stations, it was expected that the system will only last for twenty years; but the systems lasted thirty years up to now, and expected to run for more. It was proved that PV generators are reliable and more economical in comparison with diesel generators. In Libya more photovoltaic systems were put into work since 1990, with an estimated total peak power of more than 800 KWp by the end of year 2008. It was due to the durability and reliability of PV systems in this type of applications, that convinced Almadar Algadid company which is a mobile and telecommunication company in Libya, to use PV systems in GSM stations around the country, the total peak power in the field of communicationwill reach about 2.6 Mega watt peak by the end of this year. The experience reflected from using PV systems in telecommunications for thirty years proved to be reliable, have a very low or no communication stops, and more economical in comparison with stations running by diesel generators. The PV systems, which are installed in 1979-1980, still running with a little decrease in the output power but with some changes in its designed parameters. We experienced that closed type batteries are more reliable than open type, with a life time of ten years, when designing the batteries with five days autonomy. In this paper we will compare the PV system output power after thirty years of work with the designed power, expose the past experiences for using these PV systems in microwave repeater stations.
I.M. Saleh, I. Abouhdima, M.B. Gantrari
Qualification and Testing, Stand-Alone PV System, System Performance
PV Systems
Subtopic: Off-grid Applications and Rural Electrification
Event: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany
Session: 5DO.7.6
3995 - 3998
ISBN: 3-936338-25-6
Paper DOI: 10.4229/24thEUPVSEC2009-5DO.7.6
0,00 EUR
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