Feasibility study of small Hydro/PV/Wind hybrid system for off-grid rural electrification in Ethiopia

Bekele, Getachew; Tadesse, Getnet K.

doi:10.1016/j.apenergy.2011.11.059

Cited by 374 publications

(129 citation statements)

References 8 publications

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“…Unlike other studies of HPS [7][8][9][10][11][12][13] where diesel generator is usually used as a back-up unit for peak load, poor resource periods or/and reduce Cost Of Electricity (COE), the present work only considers battery bank as a back-up unit and Storage Energy Systems.…”

Section: System Description and Design Specificationmentioning

confidence: 99%

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Solar-Wind Renewable Energy System for Off-Grid Rural Electrification in Ecuador

Barzola¹,

Espinoza²,

Pavon³

et al. 2016

Proceedings of the 14th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Engineering Innovati

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Abstract-The increasing world population, and therefore the increasing of the energy demand bring us to the scenario in which the energetic solutions have to be supported by the renewable energy sources, i.e., solar energy, wind energy, tidal energy, etc. Due to the geographic location of Ecuador, these types of energy sources can be considered during the analysis, design and implementation of a rural electrification system. An off-grid electrification is helpful, especially for providing electrical energy in remote areas. The purpose of this work is to analyse and propose a suitable energetic off-grid system solution for rural electrification in a selected county placed in Ecuador. This study is based on insitu measurements of energy consumption as well as on the quantification of possible energy sources, i.e., solar and wind energy. This analysis is carried out with the help of a simulation tool. Considering the real obtained data, the electric load profile for a community is estimated and a complete system is proposed. Additionally, technical and economic details of a Wind-Solar energy system are presented.Keywords Abstract-The increasing world population, and therefore the increasing of the energy demand bring us to the scenario in which the energetic solutions have to be supported by the renewable energy sources, i.e., solar energy, wind energy, tidal energy, etc. Due to the geographic location of Ecuador, these types of energy sources can be considered during the analysis, design and implementation of a rural electrification system. An off-grid electrification is helpful, especially for providing electrical energy in remote areas.The purpose of this work is to analyze and propose a suitable energetic off-grid system solution for rural electrification in a selected county placed in Ecuador. This study is based on in-situ measurements of energy consumption as well as on the quantification of possible energy sources, i.e., solar and wind energy. This analysis is carried out with the help of a simulation tool. Considering the real obtained data, the electric load profile for a community is estimated and a complete system is proposed. Additionally, technical and economic details of a Wind-Solar energy system are presented.

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Section: System Description and Design Specificationmentioning

confidence: 99%

“…There have been several studies related to the Hybrid Power System (HPS) [7][8][9][10][11][12][13] considering different characteristics of the systems and demand. However, in this study, to decrease the oil dependence and propose a complete friendly environmental system, no diesel generator is considered during the corresponding design.…”

Section: Introductionmentioning

confidence: 99%

Solar-Wind Renewable Energy System for Off-Grid Rural Electrification in Ecuador

Barzola¹,

Espinoza²,

Pavon³

et al. 2016

Proceedings of the 14th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Engineering Innovati

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“…Although hybrid systems provide a promising alternative to single source energy system, the sizing of individual energy system and limited operational experience increases the design complexity. Various probabilistic and deterministic approaches have been used to develop models of hybrid systems to find optimum combination of the available resources and assess the system's performance [3][4][5][6]. This work evaluates the techno-economic feasibility of a hybrid system generating power for a small community using wind turbine and PV along with grid connection to further ensure uninterrupted power flow.…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Feasibility of a Hybrid Power Generation System for Developing Economies

Mukherjee

Asthana

2017

The Sustainable Places 2017 (SP2017) Conference

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This work investigates the feasibility of hybrid power generation system using multiple energy sources to fulfil the electrical demand of a residential community. The system performance is evaluated against the capital investment, Cost of Electricity (COE), CO2 emissions and Net Present Cost. Results indicate that the hybrid system reduces the COE by 47% compared to grid price and has a negative CO2 emissions of 24,603 kg/yr due to supplying its surplus energy to the grid. Renewable sources contribute to 80.1% of the overall power produced by the hybrid system. The study finds that the hybrid systems could replace complete dependency on grids.

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“…Rated output speed is the wind speed between cut-in speed and cut-out speed where the power output reaches the maximum limit that the electrical generator is capable of and is called rated power output. The power output in terms of wind speed can be estimated using 43 (20) where P R is rated power, v C is cut-in wind speed, v R is rated wind speed, v F is rated cut-out speed, and k is the Weibull shape factor. Kalantar and Mousavi 5 used value of k as 1 while Daif et al 15 and Yang et al 44 used the value of k as 2, Chedid et al 45 took the value as 3.…”

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confidence: 99%

Mathematical modeling of hybrid renewable energy system: A review on small hydro-solar-wind power generation

Bhandari

Poudel

Lee

et al. 2014

Int. J. of Precis. Eng. and Manuf.-Green Tech.

251

105

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Harnessing energy from alternative energy source has been recorded since early history. Renewable energy is abundantly found anywhere, free of cost and has non-polluting characteristics. However, these energy sources are based on the weather condition and possess inherited intermittent nature, which hinders stable power supply. Combining multiple renewable energy resources can be a possible solution to overcome defects, which not only provides reliable power but also leads to reduction in required storage capacity. Although an oversized hybrid system satisfies the load demand, it can be unnecessarily expensive. An undersized hybrid system is economical, but may not be able to meet the load demand. The optimal sizing of the renewable energy power system depends on the mathematical model of system components. This paper summarizes the mathematical modeling of various renewable energy system particularly PV, wind, hydro and storage devices. Because of the nonlinear power characteristics, wind and PV system require special techniques to extract maximum power. Hybrid system has complex control system due to integration of two (or more) different power sources. The complexity of system increases with maximum power point tracking (MPPT) techniques employed in their subsystems. This paper also summarizes mathematical modeling of various MPPT techniques for hybrid renewable energy systems.

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Feasibility study of small Hydro/PV/Wind hybrid system for off-grid rural electrification in Ethiopia

Cited by 374 publications

References 8 publications

Solar-Wind Renewable Energy System for Off-Grid Rural Electrification in Ecuador

Solar-Wind Renewable Energy System for Off-Grid Rural Electrification in Ecuador

Techno-Economic Feasibility of a Hybrid Power Generation System for Developing Economies

Mathematical modeling of hybrid renewable energy system: A review on small hydro-solar-wind power generation

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