Feasibility study for a standalone solar–wind-based hybrid energy system for application in Ethiopia

Bekele, Getachew; Palm, Björn

doi:10.1016/j.apenergy.2009.06.006

Cited by 293 publications

(124 citation statements)

References 10 publications

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“…For example, Himri et al [19] present a study of an Algerian village; Nandi and Ghosh [20] discuss the case of a Bangladeshi village, while Nfah et al [21] and Bekele and Palm [22] provide case studies of Cameroon and Ethiopia, respectively.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: A New Method to Energy Saving in a Micro Grid

2015

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Optimization of energy production systems is a relevant issue that must be considered in order to follow the fossil fuels consumption reduction policies and CO2 emission regulation. Increasing electricity production from renewable resources (e.g., photovoltaic systems and wind farms) is desirable but its unpredictability is a cause of problems for the main grid stability. A system with multiple energy sources represents an efficient solution, by realizing an interface among renewable energy sources, energy storage systems, and conventional power generators. Direct consequences of multi-energy systems are a wider energy flexibility and benefits for the electric grid, the purpose of this paper is to propose the best technology combination for electricity generation from a mix of renewable energy resources to satisfy the electrical needs. The paper identifies the optimal off-grid option and compares this with conventional grid extension, through the use of HOMER software. The solution obtained shows that a hybrid combination of renewable energy generators at an off-grid location can be a cost-effective alternative to grid extension and it is sustainable, techno-economically viable, and environmentally sound. The results show how this innovative energetic approach can provide a cost reduction in power supply and energy fees of 40% and 25%, respectively, and CO2 emission decrease attained around 18%. Furthermore, the multi-energy system taken as the case study has been optimized through the utilization of

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Section: Introductionmentioning

confidence: 99%

RETRACTED: A New Method to Energy Saving in a Micro Grid

2015

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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%

“…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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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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“…HOMER has been used to conduct several investigations of hybrid systems in many locations around the world [Shaahid and El-Amin, 2009;Bekele and Palm, 2010;Hassan et al, 2011;Nandi and Ghosh, 2010;Rehman …”

Section: Simulation and Optimizationmentioning

confidence: 99%

Environmental Impact Assessment of Power Generation Systems at GSM (Global Systems for Mobile Communication) Base Station Site

Ani¹

2013

Electron. J. Energy Envron.

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Hybrid power systems were used to minimize the environmental impact of power generation at GSM (global systems for mobile communication) base station sites. This paper presents the comparative environmental impact assessment of a diesel gas (DG) and hybrid (PV/wind/hydro/diesel) power system for the base station sites. The assessment was based on theoretical modeling of the power stations using Hybrid Optimization Model for Electric Renewables (HOMER) software. The model was designed to provide an optimal system configuration based on hour-by-hour data for energy availability and demands. Energy source, energy storage and their applicability in terms of performance are discussed. The proposed hybrid (solar, wind & hydro) + DG system was simulated using the model which results in eight different topologies: hybrid (solar, wind & hydro) + DG, hybrid (solar & hydro) + DG, hybrid (wind & hydro) + DG, hydro only + DG, hybrid (solar & wind) + DG, solar only + DG, wind only + DG, DG. From the simulation results, it is shown that a 69% renewable energy penetration in the designed hybrid PV/wind/hydro/diesel system reduces the quantity of different air pollutants relative to the case of a diesel-only system. Details of the comparisons are presented.

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Feasibility study for a standalone solar–wind-based hybrid energy system for application in Ethiopia

Cited by 293 publications

References 10 publications

RETRACTED: A New Method to Energy Saving in a Micro Grid

RETRACTED: A New Method to Energy Saving in a Micro Grid

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

Environmental Impact Assessment of Power Generation Systems at GSM (Global Systems for Mobile Communication) Base Station Site

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