Hybrid Power System Sizing and Design for Commercial Application in Kenya

  • Leonard Kipyegon Rotich Institute for Energy & Environmental Technology, Jomo Kenyatta University of Agriculture & Technology, Nairobi
  • Joseph Ngugi Kamau Department of Physics, Jomo Kenyatta University of Agriculture & Technology, Nairobi, Kenya
  • Jared Hera Ndeda Department of Physics, Jomo Kenyatta University of Agriculture & Technology, Nairobi, Kenya
  • Robert Kinyua Jomo Kenyatta University of Agriculture & Technology

Abstract

Hybrid power system sizing involves determination of local load and energy resources’ conditions as well as availability of generating system components. Each component of the system is preliminarily sized individually using prevailing load, resource and conversion system’s conditions. The Net Present Cost (NPC), Cost of Energy (COE) may be included in determining the configuration of the most optimal system that can meet all the desired power system’s goals. In order to refine the sizing and design process, a simulation software is used to select and size system components that can serve the load effectively. In this study, a Solar PV, Wind and Grid hybrid power system was systematically sized to meet the demand of a commercial consumer, East African School of Aviation (EASA). HOMER software was used to simulate the operation of the proposed HPS. The most suitable HPS was found to consist of Wind generation of an installed capacity of 200 kW, solar PV of 120 kW and the Grid. This system had an NPC of KSh 77,684,050 and a COE of KSh 8.34/kWh

Keywords: Hybrid Power System, Net Present Cost, Cost of energy, wind energy, solar PV, Simulation and sizing.

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References


  • Tégani, A. Aboubou, M.Y. Ayad, M. Becherif, R. Saadi, and O. Kraa, (2014). “Optimal sizing design and energy management of stand-alone photovoltaic/wind generator systems”. Energy Procedia 50 p163 – 170. View

  • Bhandari, K. Lee, G. Lee, Y. Cho, and S.H Ahn., (2015). “Optimization of Hybrid Renewable Energy Power Systems: A Review”. International Journal of Precision Engineering and Manufacturing-Green Technology 2 (1), P 99-112. View

  • Muthuvel, S.A. Daniel, S.K. Paul, (2017). “Sizing of PV array in a DC Nano-grid for isolated households after alteration in time of consumption”. Engineering Science and Technology, an International Journal 20 P1632–1641. View

  • M. Gioutsos, K. Blok, L. Velzen, S. Moorman, (2018). “Cost-optimal electricity systems with increasing renewable energy penetration for islands across the globe”. Applied energy 226 P 437-449. View

  • Gagari D., Ramananda P. and Sudip D., (2012). “Hybrid Power Generation System”. International Journal of Computer and Electrical Engineering, 4, pp 141-144. View

  • N. Prodromidis, L. Kikareas, P. Stamatopoulou, G. Tsoumanis, F.A. Coutelieris, (2015). “Modelling and Experimental Study on Renewable Energy based Hybrid Systems”. International Journal of Renewable Energy Research 5 P1187-1195. View

  • O. Oloo, L. Olang, and J. Strobl, (2016). “Spatial Modelling of Solar Energy Potential in Kenya”. International Journal of Sustainable Energy Planning & Development 6 pp 17-30. View

  • Gossens, (2017). “Natural resource endowment is not a strong driver of wind or PV development”. Renewable Energy 113, P 1007-1018. View

  • Sahraei S. Watson S. Sofia A. Pennes T. Buonassisi I.A. Peters, (2017). “Persistent and adaptive power system for solar powered sensors of Internet of Things (IoT)”. Energy Procedia 143 P 739-741. View

  • Kolhe, K. Agbossou, J. Hamelin and T.K. Bose, (2003). “Analytical model for predicting the performance of photovoltaic array coupled with a wind turbine in a stand-alone renewable energy system based on hydrogen”. Renewable Energy, 28 pp 727-742. View

  • Manwell F.J., McGouan G.J., Rogers L.A., (2002).Wind energy explained theory design and application. John Wiley & Sons Ltd., USA. View

  • Twidell and T. Weir, (2006). Renewable Energy Resources. Taylor & Francis 270 Madison Ave, New York, NY 10016, USA. View

  • National Aeronautic Space Administration. (n.d). NASA Surface Meteorology and Solar Energy. View

  • (2013). Schedule of Tariffs 2013, Nairobi: Energy Regulatory Commission. View

Published
2018-10-01
How to Cite
[1]
L. Rotich, J. Kamau, J. Ndeda, and R. Kinyua, “Hybrid Power System Sizing and Design for Commercial Application in Kenya”, Adv. J. Grad. Res., vol. 5, no. 1, pp. 33-42, Oct. 2018.
Section
Graduate Research Articles