Optimization of hybrid renewable energy power systems: A review



The characteristics of power produced from photovoltaic (PV) and Wind systems are based on the weather condition. Both the system are very unreliable in itself without sufficient capacity storage devices like batteries or back-up system like conventional engine generators. The reliability of the system significantly increases when two systems are hybridized with the provision of storage device. Even in such case, sufficient battery bank capacity is required to provide power to the load in extended cloudy days and non-windy days. Therefore the optimal sizing of system component represents the important part of hybrid power system. This paper summarizes recent trends of energy usage from renewable sources. It discusses physical modeling of renewable energy systems, several methodologies and criteria for optimization of the Hybrid Renewable Energy System (HRES). HRES is getting popular in the present scenario of energy and environmental crises. In this paper, we present a comprehensive review on the current state of optimization techniques specifically suited for the small and isolated power system based on the published literatures. The recent trend in optimization in the field of hybrid renewable energy system shows that artificial intelligence may provide good optimization of system without extensive long term weather data.


Hybrid renewable energy systems Optimization Mathematical modeling Photovoltaic(PV) Wind Hydro 


  1. 1.
    Enslin, J., “Renewable Energy as an Economic Energy Source for Remote Areas,” Renewable Energy, Vol. 1, No. 2, pp. 243–248, 1991.CrossRefGoogle Scholar
  2. 2.
    Bhandari, B., Lee, K.-T., Cho, Y.-M., Lee, C. S., Song, C.-K., et al., “Hybridization of Multiple Renewable Power Sources for Remote Village Electrification,” Proc. of the International Symposium on Green Manufacturing and Applications, 2013.Google Scholar
  3. 3.
    Bhandari, B., Lee, K.-T., Lee, C. S., Song, C.-K., Maskey, R. K., et al., “A Novel Off-Grid Hybrid Power System Comprised of Solar Photovoltaic, Wind, and Hydro Energy Sources,” Applied Energy, Vol. 133, pp. 236–242, 2014.CrossRefGoogle Scholar
  4. 4.
    Ahn, S., Lee, K., Bhandari, B., Lee, G., Lee, C., et al., “Formation Strategy of Renewable Energy Sources for High Mountain Off-Grid System Considering Sustainability,” J. Korean Soc. Precis. Eng., Vol. 29, No. 9, pp. 958–963, 2012.CrossRefGoogle Scholar
  5. 5.
    U.S. Energy Information Administration, “International Energy Outlook 2011,” http://www.eia.gov/forecasts/archive/ieo11/ (Accessed 12 December 2014)Google Scholar
  6. 6.
    U.S. Energy Information Administration, “Annual Energy Outlook 2012 Early Release,” http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2012).pdf (Accessed 12 December 2014)Google Scholar
  7. 7.
    Wang, C., “Modeling and Control of Hybrid Wind/Photovoltaic/Fuel Cell Distributed Generation Systems,” Ph.D. Thesis, Department of Electrical and Computer Engineering, Montant State University, 2006.Google Scholar
  8. 8.
    U.S. Energy Information Administration, “Electric Power Monthly,” http://www.eia.gov/energy_in_brief/article/renewable_electricity.cfm (Accessed 12 December 2014)Google Scholar
  9. 9.
    European Photovoltaic Industry Association, “Global Market Outlook for Photovoltaics 2013-2017,” http://www.epia.org/fileadmin/user_upload/Publications/GMO_2013_-_Final_PDF.pdf (Accessed 12 December 2014)Google Scholar
  10. 10.
    GWEC, “Global Wind Report — Annual Market Update 2012,” 2013.Google Scholar
  11. 11.
    Renewable Energy Policy Network for the 21st Century, “Renewables 2013 Global Status Report,” 2013.Google Scholar
  12. 12.
    Kaundinya, D. P., Balachandra, P., and Ravindranath, N., “Grid-Connected Versus Stand-Alone Energy Systems for Decentralized Power-A Review of Literature,” Renewable and Sustainable Energy Reviews, Vol. 13, No. 8, pp. 2041–2050, 2009.CrossRefGoogle Scholar
  13. 13.
    First Solar, “World’s Largest Operational Solar PV Project, Agua Caliente, Achieves 250 Megawatts of Grid-Connected Power,” http://investor.firstsolar.com/releasedetail.cfm?ReleaseID=706034 (Accessed 12 December 2014)Google Scholar
  14. 14.
    Solar Energy Industries Association, “NRG Energy Completes 250 MW California Valley Solar Ranch,” http://www.seia.org/news/nrgenergy-completes-250-mw-california-valley-solar-ranch (Accessed 12 December 2014)Google Scholar
  15. 15.
    Feldman, D., Barbose, G., Margolis, R., Wiser, R., Darghouth, N., et al., “Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term Projections,” National Renewable Energy Laboratory & Lawrence Berkeley National Laboratory, 2012.Google Scholar
  16. 16.
    Valente, L. C. G. and de Almeida, S. C. A. B., “Economic Analysis of a Diesel/Photovoltaic Hybrid System for Decentralized Power Generation in Northern Brazil,” Energy, Vol. 23, No. 4, pp. 317–323, 1998.CrossRefGoogle Scholar
  17. 17.
    Muselli, M., Notton, G., Poggi, P., and Louche, A., “PV-Hybrid Power Systems Sizing Incorporating Battery Storage: An Analysis via Simulation Calculations,” Renewable Energy, Vol. 20, No. 1, pp. 1–7, 2000.CrossRefGoogle Scholar
  18. 18.
    El-Hefnawi, S. H., “Photovoltaic Diesel-Generator Hybrid Power System Sizing,” Renewable Energy, Vol. 13, No. 1, pp. 33–40, 1998.CrossRefGoogle Scholar
  19. 19.
    Shrestha, G. and Goel, L., “A Study on Optimal Sizing of Stand- Alone Photovoltaic Stations,” IEEE Transactions on Energy Conversion, Vol. 13, No. 4, pp. 373–378, 1998.CrossRefGoogle Scholar
  20. 20.
    Abouzahr, I. and Ramakumar, R., “Loss of Power Supply Probability of Stand-Alone Photovoltaic Systems: A Closed Form Solution Approach,” IEEE Transactions on Energy Conversion, Vol. 6, No. 1, pp. 1–11, 1991.CrossRefGoogle Scholar
  21. 21.
    Egido, M. and Lorenzo, E., “The Sizing of Stand Alone PV-System: A Review and a Proposed New Method,” Solar Energy Materials and Solar Cells, Vol. 26, No. 1, pp. 51–69, 1992.CrossRefGoogle Scholar
  22. 22.
    Ru, Y., Kleissl, J., and Martinez, S., “Storage Size Determination for Grid-Connected Photovoltaic Systems,” IEEE Transactions on Sustainable Energy, Vol. 4, No. 1, pp. 68–81, 2013.CrossRefGoogle Scholar
  23. 23.
    Price, T. J., “James Blyth-Britain’s First Modern Wind Power Pioneer,” Wind Engineering, Vol. 29, No. 3, pp. 191–200, 2005.CrossRefGoogle Scholar
  24. 24.
    Feijoo, A. E., Cidras, J., and Dornelas, J. G., “Wind Speed Simulation in Wind Farms for Steady-State Security Assessment of Electrical Power Systems,” IEEE Transactions on Energy Conversion, Vol. 14, No. 4, pp. 1582–1588, 1999.CrossRefGoogle Scholar
  25. 25.
    Li, S., Wunsch, D. C., O’Hair, E., and Giesselmann, M. G., “Comparative Analysis of Regression and Artificial Neural Network Models for Wind Turbine Power Curve Estimation,” Journal of Solar Energy Engineering, Vol. 123, No. 4, pp. 327–332, 2001.CrossRefGoogle Scholar
  26. 26.
    Salameh, Z. M. and Safari, I., “The Effect of the Windmill’s Parameters on the Capacity Factor,” IEEE Transactions on Energy Conversion, Vol. 10, No. 4, pp. 747–751, 1995.CrossRefGoogle Scholar
  27. 27.
    Boccard, N., “Capacity Factor of Wind Power Realized Values vs. Estimates,” Energy Policy, Vol. 37, No. 7, pp. 2679–2688, 2009.CrossRefGoogle Scholar
  28. 28.
    Celik, A. N., “A Simplified Model for Estimating the Monthly Performance of Autonomous Wind Energy Systems with Battery Storage,” Renewable Energy, Vol. 28, No. 4, pp. 561–572, 2003.CrossRefGoogle Scholar
  29. 29.
    Celik, A. N., “A Simplified Model for Estimating Yearly Wind Fraction in Hybrid-Wind Energy Systems,” Renewable Energy, Vol. 31, No. 1, pp. 105–118, 2006.CrossRefGoogle Scholar
  30. 30.
    Abouzahr, I. and Ramakumar, R., “Loss of Power Supply Probability of Stand-Alone Wind Electric Conversion Systems: A Closed Form Solution Approach,”, IEEE Transactions on Energy Conversion, Vol. 5, No. 3, pp. 445–452, 1990.CrossRefGoogle Scholar
  31. 31.
    Karki, R. and Billinton, R., “Cost-Effective Wind Energy Utilization for Reliable Power Supply,” IEEE Transactions on Energy Conversion, Vol. 19, No. 2, pp. 435–440, 2004.CrossRefGoogle Scholar
  32. 32.
    Office of Energy Efficiency & Renewable Energy, “History of Hydropower,” http://www1.eere.energy.gov/water/hydro_history.html (Accessed 12 December 2014)Google Scholar
  33. 33.
    Earth Policy Institute, “Hydropower Continues Steady Growth,” http://www.earth-policy.org/data_highlights/2012/highlights29 (Accessed 12 December 2014)Google Scholar
  34. 34.
    Earth Policy Institute, “Data Highlights,” http://www.earth-policy.org/data_highlights/2012/highlights29 (Accessed 12 December 2014)Google Scholar
  35. 35.
    Bifano, W. J., Ratajczak, A. F., Bahr, D. M., and Garrett, B. G., “Social and Economic Impact of Solar Electricity at Schuchuli Village,” Solar Technology in Rural Settings: Assessments of Field Experiences, 1979.Google Scholar
  36. 36.
    Nehrir, M. H., LaMeres, B. J., Venkataramanan, G., Gerez, V., and Alvarado, L., “An Approach to Evaluate the General Performance of Stand-Alone Wind/Photovoltaic Generating Systems,” IEEE Transactions on Energy Conversion, Vol. 15, No. 4, pp. 433–439, 2000.CrossRefGoogle Scholar
  37. 37.
    Lim, J. H., “Optimal Combination and Sizing of a New and Renewable Hybrid Generation System,” International Journal of Future Generation Communication and Networking, Vol. 5, No. 2, pp. 43–59, 2012.Google Scholar
  38. 38.
    Notton, G., Muselli, M., and Louche, A., “Autonomous Hybrid Photovoltaic Power Plant using a Back-Up Generator: A Case Study in a Mediterranean Island,” Renewable Energy, Vol. 7, No. 4, pp. 371–391, 1996.CrossRefGoogle Scholar
  39. 39.
    Elhadidy, M. and Shaahid, S., “Parametric Study of Hybrid (Wind+Solar+Diesel) Power Generating Systems,” Renewable Energy, Vol. 21, No. 2, pp. 129–139, 2000.CrossRefGoogle Scholar
  40. 40.
    Chedid, R., Akiki, H., and Rahman, S., “A Decision Support Technique for the Design of Hybrid Solar-Wind Power Systems,” IEEE Transactions on Energy Conversion, Vol. 13, No. 1, pp. 76–83, 1998.CrossRefGoogle Scholar
  41. 41.
    United Nations, “Decade Of Sustainable Energy For All,” http://www.un.org/News/Press/docs/2012/ga11333.doc.htm (Accessed 12 December 2014)Google Scholar
  42. 42.
    Bhandari, B., Poudel, S. R., Lee, K.-T., and Ahn, S.-H., “Mathematical Modeling of Hybrid Renewable Energy System: A Review on Small Hydro-Solar-Wind Power Generation,” Int. J. Precis. Eng. Manuf.-Green Tech., Vol. 1, No. 2, pp. 157–173, 2014.CrossRefGoogle Scholar
  43. 43.
    Karaki, S., Chedid, R., and Ramadan, R., “Probabilistic Performance Assessment of Autonomous Solar-Wind Energy Conversion Systems,” IEEE Transactions on Energy Conversion,, Vol. 14, No. 3, pp. 766–772, 1999.CrossRefGoogle Scholar
  44. 44.
    Chouder, A., Silvestre, S., Sadaoui, N., and Rahmani, L., “Modeling and Simulation of a Grid Connected PV System based on the Evaluation of Main PV Module Parameters,” Simulation Modelling Practice and Theory, Vol. 20, No. 1, pp. 46–58, 2012.CrossRefGoogle Scholar
  45. 45.
    Das, D., Esmaili, R., Xu, L., and Nichols, D., “An Optimal Design of a Grid Connected Hybrid Wind/Photovoltaic/Fuel Cell System for Distributed Energy Production,” Proc. of the IEEE on Industrial Electronics Society, p. 6, 2005.Google Scholar
  46. 46.
    De Soto, W., Klein, S., and Beckman, W., “Improvement and Validation of a Model for Photovoltaic Array Performance,” Solar Energy, Vol. 80, No. 1, pp. 78–88, 2006.CrossRefGoogle Scholar
  47. 47.
    Salam, Z., Ishaque, K., and Taheri, H., “An Improved Two-Diode Photovoltaic (PV) Model for PV System,” Proc. of the Power Electronics, Drives and Energy Systems (PEDES) & 2010 Power India, pp. 1–5, 2010.Google Scholar
  48. 48.
    Duffie, J. A. and Beckman, W. A., “Solar Engineering of Thermal Process,” Wiley & Sons, 1991.Google Scholar
  49. 49.
    Markvart, T., “Solar Electricity,” John Wiley & Sons, 2000.Google Scholar
  50. 50.
    Habib, M. A., Said, S. A. M., El-Hadidy, M. A., and Al-Zaharna, I., “Optimization Procedure of a Hybrid Photovoltaic Wind Energy System,” Energy, Vol. 24, pp. 919–929, 1999.CrossRefGoogle Scholar
  51. 51.
    Evans, D., “Simplified Method for Predicting Photovoltaic Array Output,” Solar Energy, Vol. 27, No. 6, pp. 555–560, 1981.CrossRefGoogle Scholar
  52. 52.
    Zhou, W., Yang, H., and Fang, Z., “A Novel Model for Photovoltaic Array Performance Prediction,” Applied Energy, Vol. 84, No. 12, pp. 1187–1198, 2007.CrossRefGoogle Scholar
  53. 53.
    Hsu, S., Meindl, E. A., and Gilhousen, D. B., “Determining the Power-Law Wind-Profile Exponent under Near-Neutral Stability Conditions at Sea,” Journal of Applied Meteorology, Vol. 33, No. 6, pp. 757–765, 1994.CrossRefGoogle Scholar
  54. 54.
    Borowy, B. S. and Salameh, Z. M., “Methodology for Optimally Sizing the Combination of a Battery Bank and PV Array in a Wind/PV Hybrid System,” IEEE Transactions on Energy Conversion, Vol. 11, No. 2, pp. 367–375, 1996.CrossRefGoogle Scholar
  55. 55.
    Betz, A., “Introduction to the Theory of Flow Machines,” Pergamon, 1966.Google Scholar
  56. 56.
    Deshmukh, M. and Deshmukh, S., “Modeling of Hybrid Renewable Energy Systems,” Renewable and Sustainable Energy Reviews, Vol. 12, No. 1, pp. 235–249, 2008.CrossRefGoogle Scholar
  57. 57.
    Theubou, T., Wamkeue, R., and Kamwa, I., “Dynamic Model of Diesel Generator Set for Hybrid Wind-Diesel Small Grids Applications,” Proc. of the IEEE on Electrical & Computer Engineering, pp. 1–4, 2012.Google Scholar
  58. 58.
    Bhuiyan, M. and Ali, A. M., “Sizing of a Stand-Alone Photovoltaic Power System at Dhaka,” Renewable Energy, Vol. 28, No. 6, pp. 929–938, 2003.CrossRefGoogle Scholar
  59. 59.
    Ai, B., Yang, H., Shen, H., and Liao, X., “Computer-Aided Design of PV/Wind Hybrid System,” Renewable Energy, Vol. 28, No. 10, pp. 1491–1512, 2003.CrossRefGoogle Scholar
  60. 60.
    Yang, H., Wei, Z., and Chengzhi, L., “Optimal Design and Techno- Economic Analysis of a Hybrid Solar-Wind Power Generation System,” Applied Energy, Vol. 86, No. 2, pp. 163–169, 2009.CrossRefGoogle Scholar
  61. 61.
    Guasch, D. and Silvestre, S., “Dynamic Battery Model for Photovoltaic Applications,” Progress in Photovoltaics: Research and Applications, Vol. 11, No. 3, pp. 193–206, 2003.CrossRefGoogle Scholar
  62. 62.
    Markvart, T., “Sizing of Hybrid Photovoltaic-Wind Energy Systems,” Solar Energy, Vol. 57, No. 4, pp. 277–281, 1996.CrossRefGoogle Scholar
  63. 63.
    Kellogg, W., Nehrir, M., Venkataramanan, G., and Gerez, V., “Optimal unit Sizing for a Hybrid Wind/Photovoltaic Generating System,” Electric Power Systems Research, Vol. 39, No. 1, pp. 35–38, 1996.CrossRefGoogle Scholar
  64. 64.
    Chedid, R. and Saliba, Y., “Optimization and Control of Autonomous Renewable Energy Systems,” International Journal of Energy Research, Vol. 20, No. 7, pp. 609–624, 1996.CrossRefGoogle Scholar
  65. 65.
    Markvart, T., Fragaki, A., and Ross, J., “PV System Sizing using Observed Time Series of Solar Radiation,” Solar Energy, Vol. 80, No. 1, pp. 46–50, 2006.CrossRefGoogle Scholar
  66. 66.
    Tina, G., Gagliano, S., and Raiti, S., “Hybrid Solar/Wind Power System Probabilistic Modelling for Long-Term Performance Assessment,” Solar Energy, Vol. 80, No. 5, pp. 578–588, 2006.CrossRefGoogle Scholar
  67. 67.
    Bagul, A., Salameh, Z., and Borowy, B., “Sizing of a Stand-Alone Hybrid Wind-Photovoltaic System using a Three-Event Probability Density Approximation,” Solar Energy, Vol. 56, No. 4, pp. 323–335, 1996.CrossRefGoogle Scholar
  68. 68.
    Posadillo, R. and López Luque, R., “Approaches for Developing a Sizing Method for Stand-Alone PV Systems with Variable Demand,” Renewable Energy, Vol. 33, No. 5, pp. 1037–1048, 2008.CrossRefGoogle Scholar
  69. 69.
    De, A. R. and Musgrove, L., “The Optimization of Hybrid Energy Conversion Systems using the Dynamic Programming Model-Rapsody,” International Journal of Energy Research, Vol. 12, No. 3, pp. 447–457, 1988.CrossRefGoogle Scholar
  70. 70.
    Bhandari, R. and Stadler, I., “Electrification using Solar Photovoltaic Systems in Nepal,” Applied Energy, Vol. 88, No. 2, pp. 458–465, 2011.CrossRefGoogle Scholar
  71. 71.
    Yang, H., Lu, L., and Burnett, J., “Weather Data and Probability Analysis of Hybrid Photovoltaic-Wind Power Generation Systems in Hong Kong,” Renewable Energy, Vol. 28, No. 11, pp. 1813–1824, 2003.CrossRefGoogle Scholar
  72. 72.
    Yang, H., Lu, L., and Zhou, W., “A Novel Optimization Sizing Model for Hybrid Solar-Wind Power Generation System,” Solar Energy, Vol. 81, No. 1, pp. 76–84, 2007.CrossRefGoogle Scholar
  73. 73.
    Kellogg, W., Nehrir, M., Venkataramanan, G., and Gerez, V., “Generation Unit Sizing and Cost Analysis for Stand-Alone Wind, Photovoltaic, and Hybrid Wind/PV Systems,” IEEE Transactions on Energy Conversion, Vol. 13, No. 1, pp. 70–75, 1998.CrossRefGoogle Scholar
  74. 74.
    Li, J., Wei, W., and Xiang, J., “A Simple Sizing Algorithm for Stand-Alone PV/Wind/Battery Hybrid Microgrids,” Energies, Vol. 5, No. 12, pp. 5307–5323, 2012.CrossRefGoogle Scholar
  75. 75.
    Chedid, R. and Rahman, S., “Unit Sizing and Control of Hybrid Wind-Solar Power Systems,” IEEE Transactions on Energy Conversion, Vol. 12, No. 1, pp. 79–85, 1997.CrossRefGoogle Scholar
  76. 76.
    Chedid, R., Karaki, S., and Rifai, A., “A Multi-Objective Design Methodology for Hybrid Renewable Energy Systems,” Proc. of the IEEE on Power Tech, pp. 1–6, 2005.Google Scholar
  77. 77.
    Yang, H., Zhou, W., Lu, L., and Fang, Z., “Optimal Sizing Method for Stand-Alone Hybrid Solar-Wind System with LPSP Technology by Using Genetic Algorithm,” Solar Energy, Vol. 82, No. 4, pp. 354–367, 2008.CrossRefGoogle Scholar
  78. 78.
    Koutroulis, E., Kolokotsa, D., Potirakis, A., and Kalaitzakis, K., “Methodology for Optimal Sizing of Stand-Alone Photovoltaic/ Wind-Generator Systems using Genetic Algorithms,” Solar Energy, Vol. 80, No. 9, pp. 1072–1088, 2006.CrossRefGoogle Scholar
  79. 79.
    Mohammadi, M., Hosseinian, S., and Gharehpetian, G., “Ga-Based Optimal Sizing of Microgrid and DG Units under Pool and Hybrid Electricity Markets,” International Journal of Electrical Power & Energy Systems, Vol. 35, No. 1, pp. 83–92, 2012.CrossRefGoogle Scholar
  80. 80.
    Xu, D., Kang, L., Chang, L., and Cao, B., “Optimal Sizing of Standalone Hybrid Wind/PV Power Systems using Genetic Algorithms,” Proc. of the IEEE on Electrical and Computer Engineering, pp. 1722–1725, 2005.Google Scholar
  81. 81.
    Hakimi, S. and Moghaddas-Tafreshi, S., “Optimal Sizing of a Stand- Alone Hybrid Power System via Particle Swarm Optimization for Kahnouj Area in South-East of Iran,” Renewable Energy, Vol. 34, No. 7, pp. 1855–1862, 2009.CrossRefGoogle Scholar
  82. 82.
    Boonbumroong, U., Pratinthong, N., Thepa, S., Jivacate, C., and Pridasawas, W., “Particle Swarm Optimization for AC-Coupling Stand Alone Hybrid Power Systems,” Solar Energy, Vol. 85, No. 3, pp. 560–569, 2011.CrossRefGoogle Scholar
  83. 83.
    Mohammadi, M., Hosseinian, S., and Gharehpetian, G., “Optimization of Hybrid Solar Energy Sources/Wind Turbine Systems Integrated to Utility Grids as Microgrid (MG) under Pool/Bilateral/Hybrid Electricity Market using PSO,” Solar Energy, Vol. 86, No. 1, pp. 112–125, 2012.CrossRefGoogle Scholar
  84. 84.
    Kashefi, K. A., Riahy, G., and Kouhsari, S., “Optimal Design of a Reliable Hydrogen-Based Stand-Alone Wind/PV Generating System, Considering Component Outages,” Renewable Energy, Vol. 34, No. 11, pp. 2380–2390, 2009.CrossRefGoogle Scholar
  85. 85.
    La, T. G., Salvina, G., and Tina, G., “Optimal Sizing Procedure for Hybrid Solar Wind Power Systems by Fuzzy Logic,” Proc. of the IEEE on Electrotechnical Conference, pp. 865–868, 2006.Google Scholar
  86. 86.
    Vosen, S. and Keller, J., “Hybrid Energy Storage Systems for Stand-Alone Electric Power Systems: Optimization of System Performance and Cost through Control Strategies,” International Journal of Hydrogen Energy, Vol. 24, No. 12, pp. 1139–1156, 1999.CrossRefGoogle Scholar
  87. 87.
    Khatib, T., Mohamed, A., and Sopian, K., “Optimization of a PV/ Wind Micro-Grid for Rural Housing Electrification using a Hybrid Iterative/Genetic Algorithm: Case Study of Kuala Terengganu, Malaysia,” Energy and Buildings, Vol. 47, pp. 321–331, 2012.CrossRefGoogle Scholar
  88. 88.
    Anayochukwu, A. V. and Nnene, E. A., “Simulation and Optimization of Photovoltaic/Diesel Hybrid Power Generation Systems for Health Service Facilities in Rural Environments,” Electronic Journal of Energy & Environment, Vol. 1, No. 1, pp. 57–70, 2013.Google Scholar
  89. 89.
    Nfah, E., Ngundam, J., Vandenbergh, M., and Schmid, J., “Simulation of Off-Grid Generation Options for Remote Villages in Cameroon,” Renewable Energy, Vol. 33, No. 5, pp. 1064–1072, 2008.CrossRefGoogle Scholar
  90. 90.
    Lal, D. K., Dash, B. B., and Akella, A., “Optimization of PV/Wind/Micro-Hydro/Diesel Hybrid Power System in Homer for the Study Area,” International Journal on Electrical Engineering and Informatics, Vol. 3, No. 3, pp. 307–325, 2011.Google Scholar
  91. 91.
    Hrayshat, E. S., “Techno-Economic Analysis of Autonomous Hybrid Photovoltaic-Diesel-Battery System,” Energy for Sustainable Development, Vol. 13, No. 3, pp. 143–150, 2009.CrossRefGoogle Scholar
  92. 92.
    El-Khadimi, A., Bchir, L., and Zeroual, A., “Dimensionnement et Optimisation Technico-Economique D’un Système D’Energie Hybride Photovoltaïque-Eolien Avec Système de Stockage,” Revue des Énergies Renouvelables, Vol. 7, pp. 73–83, 2004.Google Scholar
  93. 93.
    Kusakana, K. and Vermaak, H. J., “Hybrid Renewable Power Systems for Mobile Telephony Base Stations in Developing Countries,” Renewable Energy, Vol. 51, pp. 419–425, 2013.CrossRefGoogle Scholar
  94. 94.
    Russell, S. J. and Norvig, P., “Artificial Intelligence: A Modern Approach,” 2nd Ed., Upper Saddle River, 2003.Google Scholar
  95. 95.
    Liu, B. Y. and Jordan, R. C., “The Long-Term Average Performance of Flat-Plate Solar-Energy Collectors: With Design Data for the Us, Its Outlying Possessions and Canada,” Solar Energy, Vol. 7, No. 2, pp. 53–74, 1963.CrossRefGoogle Scholar
  96. 96.
    Ashok, S., “Optimised Model for Community-Based Hybrid Energy System,” Renewable Energy, Vol. 32, No. 7, pp. 1155–1164, 2007.CrossRefGoogle Scholar
  97. 97.
    Chapman, R. N., “Sizing Handbook for Stand-Alone Photovoltaic/ Storage Systems.” Sandia National Laboratories, 1987.Google Scholar
  98. 98.
    Pillai, N. V., “Loss of Load Probability of a Power System,” Munich Personal Repec Archive, Paper No. 6953, 2008.Google Scholar
  99. 99.
    Calabrese, G., “Generating Reserve Capacity Determined by the Probability Method,” Transactions of the American Institute of Electrical Engineers, Vol. 66, No. 1, pp. 1439–1450, 1947.CrossRefGoogle Scholar

Copyright information

© Korean Society for Precision Engineering 2015

Authors and Affiliations

  1. 1.School of Mechanical & Aerospace EngineeringSeoul National UniversitySeoulSouth Korea
  2. 2.Institute of Advanced Machinery and DesignSeoul National UniversitySeoulSouth Korea
  3. 3.William E. Boeing Department of Aeronautics and AstronauticsUniversity of WashingtonSeattleUSA

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