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Evaluation of A 50MW Two-Axis Tracking Photovoltaic Power Plant for AL-Jagbob, Libya: Energetic, Economic, and Environmental Impact Analysis

Authors: Y. Aldali, F. Ahwide


This paper investigates the application of large scale (LS-PV) two-axis tracking photovoltaic power plant in Al-Jagbob, Libya. A 50MW PV-grid connected (two-axis tracking) power plant design in Al-Jagbob, Libya has been carried out presently. A hetero-junction with intrinsic thin layer (HIT) type PV module has been selected and modeled. A Microsoft Excel-VBA program has been constructed to compute slope radiation, dew-point, sky temperature, and then cell temperature, maximum power output and module efficiency for this system, for tracking system. The results for energy production show that the total energy output is 128.5 GWh/year. The average module efficiency is 16.6%. The electricity generation capacity factor (CF) and solar capacity factor (SCF) were found to be 29.3% and 70.4% respectively. A 50MW two axis tracking power plant with a total energy output of 128.5 GWh/year would reduce CO2 pollution by 85,581 tonnes of each year. The payback time for the proposed LS-PV photovoltaic power plant was found to be 4 years.

Keywords: Solar energy, Environmental Impact, large PV power plant, dual-axis tracking system

Digital Object Identifier (DOI):

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Kurokawa K, Keiichi, K,.” Energy from the Desert”: Earthscan in UK and USA 2007.
[2] Duffie JA, and Beckman, W.A.,. "Solar Engineering of Thermal Processes”. 2nd ed. New York: Wiley Interscience 1991.
[3] Markvart T. "Photovoltaic solar energy conversion”: School of Engineering Sciences, University of Southampton; 2002.
[4] Aldali Y, Celik A, Muneer T. "Modelling and experimental verification of solar radiation on a sloped surface, photovoltaic cell temperature, and photovoltaic efficiency”. Journal of American Society of Civil Engineering. (ASCE) EY. 2013 March; 139(1), 8–11.
[5] Sanyo. cited; Available from: sanyo_HIT200W_8-08.pdf.
[6] Stromsta K-E.” Masdar connects 10MW solar farm to UAE's power grid”. RECHARGE. 2009.
[7] Kurokawa K, Keiichi K. "Energy from the Desert”.: Earthscan Publications Ltd 2003.
[8] J.M. Gordon HJW. "Central-station solar photovoltaic systems: Field layout, tracker, and array geometry sensitivity studies”. Solar Energy. 1991; 46(4):211-7.
[9] El-Arroudi K, Moktar,M. "Demand Side Management in Libya Tripoli”: General Electric Company of Libya (GECOL), Transmission System Operation and Control Department; 2009.
[10] Berg B. "The ecology of building materials”: Architectural Press, Butterworth-Heinemann, Oxford 2001.
[11] Sun Edison Activates Really Big Solar PV Plant in Italy. 2010
[cited; Available from:
[12] Gupta S. "How Low Will Price Fall?” Photovoltaic Technology Show 2010 Europe; April 27, 2010; Stuttgart, Germany; April 27, 2010.
[13] D. Lecoufle R, Lawless, M. Hampel. "Large Scale PV Plants in North Africa and the Middle East - Are Large Scale PV Plants in the Sun-Belt Countries Overshadowed by CSP's Recent Boom?” A Technical and Economical Comparison. 24th European Photovoltaic Solar Energy Conference.
[14] L Narvarte EL. "Tracking and Ground Cover Ratio”. Prog Photovoltaic. 2008; 16:703-14.