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energy potential assessment and techno-economic analysis of micro hydro-photovoltaic hybrid system in Goda Warke village,Ethiopia

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Clean energy 2024年第1期8卷 237-260页

作者： Ephrem Assefa Feyissa Getachew Shunki Tibba Tarekegn Limore Binchebo Endeshaw Alemu Bekele Adem Tibesso Kole Department of Mechanical Engineering Bule Hora UniversityBule HoraEthiopia Agro Technical and Technology College Menschen fuer Menschen FoundationHararEthiopia Faculty of Mechanical Engineering Jimma Institute of TechnologyJimmaEthiopia Department of Thermal Technology Silesian University of TechnologyGliwicePoland Jimma Agricultural Engineering Research Center JimmaOromia Agricultural Research InstituteEthiopia

Rural Ethiopia has significant untapped potential for hydro and solar energy generation ***,challenges arise from seasonal variations and unfavourable topographic positions of flowing rivers,hindering the efficient exploitation of these *** the country’s abundance in hydro and solar energy resources,>75%of the population still lack access to electricity from the national *** work deals with energy resource potential assessment and techno-economic analysis of micro hydro-photovol-taic(PV)hybrid systems,considered in the case study of Goda Warke village,located in the Yaya Gulele district.A novel framework is proposed that utilizes the Natural Resource Soil Conservation Service curve number method to assess the energy potential of micro-hydro energy in ungauged basins,specifically at the exit point of the Girar River basin *** average monthly flow rate in the basin is 0.975 m3/s,while the area exhibits a solar radiation potential of 5.39 kWh/m^(2)/*** policy promotes expanding ac-cess to modern energy sources and utilization of indigenous energy *** results indicate that the hydro/PV/diesel generator(DG)/battery and hydro/PV/battery systems are the most optimal choices based on net present cost,with the inclusion of a DG for economic ***-hydro energy covers most of the electric load in the area,achieving a capacity factor of 47.5%.The cost of energy and net present cost were found to be sensitive to variables such as the price of diesel fuel,pipe head loss,and the growth of the village *** optimized system demonstrated a hydro energy potential of 1405.37 MWh/year and a PV energy output of 274.04 MWh/year,resulting in a levelized cost of energy of 0.0057 and 0.049$/kWh for the hydro and PV components,respectively.

关键词： energy potential hybrid micro hydro-photovoltaic Natural Resource Soil Conservation Service curve number sensitivity variable

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Analysis and Assessment of Wind energy potential of Al-Hodeidah in Yemen

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Computers, Materials & Continua 2021年第11期69卷 1995-2011页

作者： Fahd N.Al-Wesabi Murad A.Almekhlafi Mohammed Abdullah Al-Hagery Mohammad Alamgeer Khalid Mahmood Majdy M.Eltahir Ali M.Al-Sharafi Amin M.El-Kustaban Department of Computer Science King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Electrical Engineering–Communication Engineering Sana’a UniversityYemen Department of Computer Science College of ComputerQassim UniversitySaudi Arabia Department of Information Systems King Khalid UniversityMayahel AseerKSA Department of Computer Science College of Computers and Information TechnologyUniversity of BishaKSA Department of Electronic Faculty of EngineeringUSTSana’aYemen

Renewable energy is one of the essential elements of the social and economic development in any civilized *** use of fossil fuels and the non-renewable form of energy has many adverse effects on the most of *** the high potential of renewable energy sources in Yemen and the absence of similar studies in the region,this study aimed to examine the wind energy potential of Hodeidah-Yemen Republic by analyzing wind characteristics and assessment,determining the available power density,and calculate the wind energy extracted at different *** average wind speed of Hodeidah was obtained only for the data currently available for the five years 2005–2009(due to the current economic and the political situation in Yemen).The results show that the average wind speed in the five years is(25.2 W/m2 at 10 m,93.9 W/m2 at 30 m,and 173.5 W/m2 at 50 m).The average yearly wind power density(25.2 W/m2 at 10 m,93.9 W/m2 at 30 m and 173.5 W/m2 at 50m),and the average yearly energy density(220.8 KWh/m2/year at 10 m,822.6 KWh/m2/year at 30 m and 1519.9 KWh/m2/year at 50 m).This research is a preliminary assessment of the potential of wind energy in Hodeidah,which provides useful information for developing wind energy and an efficient wind *** to the International Wind energy Rating criteria,the region of Hodeidah falls under‘Class 2’and is classified as‘Marginal’for most of the year.

关键词： energy potential wind speed weibull distribution wind power density

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Analysis and Assessment of Wind energy potential of Almukalla in Yemen

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Computers, Materials & Continua 2022年第8期72卷 3113-3129页

作者： Murad A.A.Almekhlafi Fahd N.Al-Wesabi Majdy M.Eltahir Anwer Mustafa Hilal Amin M.El-Kustaban Abdelwahed Motwakel Ishfaq Yaseen Manar Ahmed Hamza Department of Electrical Engineering–Communication Engineering Sana’a UniversityYemen Department of Computer Science King Khalid UniversityMuhayelAseerSaudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Information Systems King Khalid UniversityMuhayelAseerSaudi Arabia Department of Computer and Self Development Preparatory Year DeanshipPrince Sattam bin Abdulaziz UniversityAlKharjSaudi Arabia Electronic Department Faculty of EngineeringUniversity of Science and TechnologySana’aYemen

energy is an essential element for any civilized country’s social and economic development,but the use of fossil fuels and nonrenewable energy forms has many negative impacts on the environment and the *** Republic of Yemen has very good potential to use renewable ***,we find few studies on renewable wind energy in *** the lack of a similar analysis for the coastal city,this research newly investigates wind energy’s potential near the Almukalla area by analyzing wind ***,evaluation,model identification,determination of available energy density,computing the capacity factors for several wind turbines and calculation of wind energy were extracted at three heights of 15,30,and *** wind speeds were obtained only for the currently available data of five recent years,2005–*** study involves a preliminary assessment of Almukalla’s wind energy potential to provide a primary base and useful insights for wind engineers and *** research aims to provide useful assessment of the potential of wind energy in Almukalla for developing wind energy and an efficient wind *** Weibull distribution shows a perfect approximation for estimating the intensity of Yemen’s wind *** on both theWeibullmodel and the results of the annual wind speed data analysis for the study site in Mukalla,the capacity factor for many turbines was also calculated,and the best suitable turbine was *** to the International Wind energy Rating criteria,Almukalla falls under Category 7,which is,rated“Superb”most of the year.

关键词： Almukalla energy potential Rayleigh distribution Weibull distribution wind power density wind speed

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Analysis and Assessment of Wind energy potential of Socotra Archipelago in Yemen

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Computers, Materials & Continua 2022年第1期70卷 1177-1193页

作者： Murad A.Almekhlafi Fahd N.Al-Wesabi Imran Khan Nadhem Nemri Khalid Mahmood Hany Mahgoub Noha Negm Amin M.El-Kustaban Ammar Zahary Department of Electrical Engineering–Communication Engineering Sana’a UniversityYemen Department of Computer Science King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Electrical Engineering University of Engineering and TechnologyPeshawarP.O.B 814Pakistan Department of Information Systems King Khalid UniversityMayahel AseerKSA Computer Science Department King Khaled UniversityKSA&Faculty of Computers and InformationComputer Science DepartmentMenoufia UniversityEgypt Computer Science Department King Khaled UniversityKSA&Faculty of ScienceDepartment of Mathematics and Computer ScienceMenoufia UniversityEgypt Electronics Department Faculty of EngineeringUSTSana’aYemen Faculty of Computer and IT Sana’a UniversityYemen

The increasing use of fossil fuels has a significant impact on the environment and ecosystem,which increases the rate of *** the high potential of renewable energy sources inYemen and the absence of similar studies in the region,this study aims to examine the potential of wind energy in Socotra *** was done by analyzing and evaluating wind properties,determining available energy density,calculating wind energy extracted at different altitudes,and then computing the capacity factor for a number of wind turbines and determining the *** average wind speed in Socotra Island was obtained from the Civil Aviation and Meteorology Authority data,only for the five-year data currently *** results showed high wind speeds from June to September(9.85-14.88 m/s)while the wind speed decreased for the rest of the *** average wind speed in the five years was 7.95 m/*** average annual wind speed,wind energy density,and annual energy density were calculated at different altitudes(10,30,and 50 m).According to the International Wind energy Rating criteria,the region of Socotra Island falls under Category 7 and is classified as‘Superb’for most of the *** study provides useful information for developing wind energy and an efficient wind approach.

关键词： energy potential wind characteristics Weibull distribution wind power density Socotra island

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Investigation of availability,demand,targets,and development of renewable energy in 2017-2050:a case study in Indonesia

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International Journal of Coal Science & Technology 2021年第4期8卷 483-499页

作者： Erdiwansyah Erdiwansyah Mahidin Mahidin Husni Husin Nasaruddin Nasaruddin Khairil Khairil Muhammad Zaki Jalaluddin Jalaluddin Doctoral Program School of EngineeringUniversitas Syiah KualaBanda Aceh 23111Indonesia Department of Chemical Engineering Universitas Syiah KualaBanda Aceh 23111Indonesia Department of Electrical and Computer Engineering Syiah Kuala UniversityBanda Aceh 23111Indonesia Department of Mechanical Engineering Universitas Syiah KualaBanda Aceh 23111Indonesia Department of Accounting Universitas Syiah KualaBanda Aceh 23111Indonesia Faculty of Engineering Universitas Serambi MekkahBanda Aceh 23245Indonesia

Abundant potential of renewable energy(RE)in Indonesia is predicted to replace conventional energy which continues to experience depletion year by ***,until now,the use of RE has only reached 2%of the existing potential of 441.7 *** main overview of this work is to investigate the availability of RE that can be utilized for electricity generation in *** energy demand and targets in the long run during the 2017-2050 period are also ***,government policies in supporting RE development are considered in this *** results show that the potential of RE in Indonesia can be utilized and might replace conventional energy for *** use of RE for electricity generation can be achieved by employing a government policy that supports the investor as the executor of RE *** selling price of electricity generated from RE is cheaper than electricity generated from fossils;this makes economy is more affordable for ***,the target set by the government for utilizing RE as the main energy in Indonesia can be done by implementing several policies for the RE ***,greenhouse gas emissions and the use of petroleum fuels can be reduced.

关键词： energy potential energy demand energy development Economic growth energy policy energy targets

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Techno-Economic and Environmental Analysis of energy Scenarios in Ghana

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Smart Grid and Renewable energy 2021年第6期12卷 81-98页

作者： John Abban Albert Awopone College of Engineering Design and Physical Sciences Brunel University London Uxbridge United Kingdom

The electricity potential in Ghana has become a huge challenge to the nation, which increases the country’s economic growth and reduces Nation’s development. The study highlights the trends on the power grid of the energy potential for the past ten years’ impact regarding the directions on the power grid, and to determine the economic potential viabilities couples with the sustainability of renewable energy sources in Ghana. The study relied on substantial reviewed literature and revealed that Ghana’s energy generation has passed through multiple stages, started from diesel generator supply systems owned by industries and factories to hydroelectricity, thermal power electricity powered by natural gas or crude oil, and solar electricity. The study showed that as of December 2017, Ghana had installed a total capacity of 4398.6 MW comprising Hydro, Thermal, and Solar Plants. Out of the full power, Hydropower generates 1580 MW representing 35.9%, Thermal generates 2796 MW, which also represents 63.6%, while 22.6 MW capacity represents 0.5%. The Long-range Energy Alternatives Planning system (LEAP) tools were employed to consider three different scenarios: energy demand, cost-benefit, and carbon limitation. 2018 was considered as the base year and 2048 as the end year. The results show that 17,800 GWh was estimated as energy demand at base year while 44,000

关键词： energy Demand Mitigation (MITG) Reference (REF) Scenarios energy potential

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