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Optimal Design of a PV/Diesel Hybrid System for Decentralized Areas through Economic Criteria

D. Tsuanyo; D. Aussel; Y. Azoumah; P. Neveu

An innovative concept called “Flexy-Energy” is developing at 2iE. This concept aims to produce electricity at lower cost by smartly mix different available energy sources in accordance to the load profile of the region. With a higher solar irradiation and due to the fact that Diesel generator are massively used in sub-Saharan rural areas, PV/Diesel hybrid systems could be a good application of this concept and a good solution to electrify this region, provided they are reliable, cost effective and economically attractive to investors. Presentation of the developed approach is the aims of this paper. The PV/Diesel hybrid system designed consists to produce electricity and/or heat from a coupling between Diesel Diesel generators and PV panels without batteries storage, while ensuring the substitution of gasoil by bio-fuels available in the area where the system will be installed. The optimal design of this system is based on his technical performances; the Life Cycle Cost (LCC) and Levelized Cost of Energy are developed and use as economic criteria. The Net Present Value (NPV), the internal rate of return (IRR) and the discounted payback (DPB) are also evaluated according to dual electricity pricing (in sunny and unsunny hours). The PV/Diesel hybrid system obtained is compared to the standalone Diesel Diesel generators. The approach carried out in this paper has been applied to Siby village in Mali (Latitude 12 ° 23'N 8 ° 20'W) with 295 kWh as daily demand.This approach provides optimal physical characteristics (size of the components, number of component) and dynamical characteristics in real time (number of Diesel generator on, their load rate, fuel specific consumptions, and PV penetration rate) of the system. The system obtained is slightly cost effective; but could be improved with optimized tariffing strategies.

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  • Y. Sokona, Y. Mulugetta, and H. Gujba, "Widening energy access in Africa: Towards energy transition," Energy Policy, vol. 47, Supplement 1, pp. 3–10, june 2012.

  • Y. Azoumah, D. Yamegueu, P. Ginies, Y. Coulibaly, and P. Girard, "Sustainable electricity generation for rural and peri-urban populations of sub-Saharan Africa: The 'flexy-energy' concept," Energy Policy, vol. 39, no. 1, pp. 131–141, Jan. 2011.

  • M. Moner-Girona, R. Ghanadan, A. Jacobson, and D. M. Kammen, "Decreasing PV costs in Africa: Opportunities for Rural Electrification using Solar PV in Sub-Saharan Africa," Refocus, vol. 7, no. 1, pp. 40–45, Jan. 2006.

  • D. Yamegueu, Y. Azoumah, X. Py, and H. Kottin, "Experimental analysis of a solar PV/diesel hybrid system without storage: Focus on its dynamic behavior," Int. J. Electr. Power Energy Syst., vol. 44, no. 1, pp. 267–274, Jan. 2013.

  • I. Vechiu, H. Camblong, G. Tapia, B. Dakyo, and O. Curea, "Control of four leg inverter for hybrid power system applications with unbalanced load," Energy Convers. Manag., vol. 48, no. 7, pp. 2119–2128, july 2007.

  • E. Demirok, D. Sera, R. Teodorescu, P. Rodriguez, and U. Borup, "Clustered PV inverters in LV networks: An overview of impacts and comparison of voltage control strategies," in 2009 IEEE Electrical Power Energy Conference (EPEC), 2009, pp. 1–6.

  • R. Tonkoski and L. A. C. Lopes, "Impact of active power curtailment on overvoltage prevention and energy production of PV inverters connected to low voltage residential feeders," Renew. Energy, vol. 36, no. 12, pp. 3566–3574, december 2011.

  • D. Tsuanyo, D. Aussel, P. Neveu, and Y. Azoumah, "Modeling and optimization of off-grid and battery less hybrid PV/Diesel systems," Submitt. Publ.

  • D. Yamegueu, Y. Azoumah, X. Py, and N. Zongo, "Experimental study of electricity generation by Solar PV/diesel hybrid systems without battery storage for off-grid areas," Renew. Energy, vol. 36, no. 6, pp. 1780–1787, july 2011. [10] O. Skarstein and K. Uhlen, "Design considerations with respect to long-term diesel saving in wind/diesel plants," Wind Eng., vol. 13, pp. 72–87, 1989. [11] Y. Azoumah, "Systèmes énergétiques pour une production d'énergie durable: Du concept «Flexy-Energy» à l'optimisation constructale des réseaux de transferts," Habilitation à Diriger les Recherches, Université de Perpignan Via Domitia, Perpignan, 2013. [12] D. Tsuanyo, P. Neveu, Y. Azoumah, and D. Aussel, "review of economic criteria for energy systems," Submitt. Publ. [13] H. Kierulff, "MIRR: A better measure," Bus. Horiz., vol. 51, no. 4, pp. 321–329, july 2008. [14] W. Short, D. J. Packey, and T. Holt, A manual for the economic evaluation of energy efficiency and renewable energy technologies. University Press of the Pacific, 2005. [15] F. Lefley, "The payback method of investment appraisal: A review and synthesis," Int. J. Prod. Econ., vol. 44, no. 3, pp. 207–224, july 1996. [16] A. Wambach, "Payback criterion, hurdle rates and the gain of waiting," Int. Rev. Financ. Anal., vol. 9, no. 3, pp. 247–258, 2000. [17] M. Muselli, G. Notton, and A. Louche, "Design of Hybrid-Photovoltaic Power Generator, with Optimization of Energy Management," Sol. Energy, vol. 65, no. 3, pp. 143–157, february 1999. [18] C. W. Ajan, S. S. Ahmed, H. B. Ahmad, F. Taha, and A. A. B. Mohd Zin, "On the policy of photovoltaic and diesel generation mix for an off-grid site: East Malaysian perspectives," Sol. Energy, vol. 74, no. 6, pp. 453–467, june 2003.

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