Hydrokinetic power generation for rural electricity supply: Case of South Africa

Kusakana, K.; Vermaak, H.J.

doi:10.1016/j.renene.2012.12.051

Cited by 92 publications

(35 citation statements)

References 6 publications

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“…In order to increase energy supply to the nation, there is need to harness all the energy potential available in our rivers. Kusakana (2013) viewed that Hydrokinetic power production is the best supply option compared to the wind, Photovoltaic (PV) and diesel generator where adequate water resources is available. It is clear that many villages and settlements around the catchment of Ikere gorge basin are not connected to the national grid.…”

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confidence: 99%

SWAT analysis of Ikere Gorge basin for hydrokinetic power estimation in selected rural settlements of Oke Ogun, Nigeria

2017

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Abstract. The issue of power generation is the bane of rural development. Power availability will not only raise standard of living but will also enhance people livelihood. This work examines the application of soil and water Assessment Tool (SWAT) in hydrological analysis of upper catchment of Ikere Gorge Basin for hydrokinetic energy estimation. The operation of hydrokinetic turbines depends on river flow and pressure head (∆H). SWATGIS system was used to determine the hydrological parameters of the sub-basins. SWAT is a version of ArcGIS Software. The result of the analysis was used to estimate the theoretical hydrokinetic power potential of the selected basins. The total theoretical hydrokinetic energy potential of the 10 basin selected was estimated as 36.4 MW. Potential hydrokinetic energy was computed using a theoretical procedure, assuming a head of 0.3 meters and a constant weight of water at 9800 n/m³. The hydrokinetic energy potential was highest in Oshe at Onikankan (9.542 MW) and lowest in Kojuoba at Olonje (0 MW). The SWAT software was later used to create Geo-database for each catchment of Hydrologic Response Unit (HURs) of the basin under study. A spatial structured query language (SSQL) was used to perform query analysis on the potential of the sites selected for hydrokinetic energy estimation.

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confidence: 99%

SWAT analysis of Ikere Gorge basin for hydrokinetic power estimation in selected rural settlements of Oke Ogun, Nigeria

2017

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“…The operation principle and the advantages of this power generation technology compared to other renewable options have been discussed in detail in reference [11].…”

Section: Hydrokinetic Systemmentioning

confidence: 99%

“…Currently, few publications are available on standalone HKT systems; however, it is very rare to find research dealing with HKT systems combined with other renewable sources and DG. In [11], the author investigated the potential use of hydrokinetic-based hybrid systems for low cost and sustainable electrical energy supply. Different hybrid system configurations with PV, wind, and diesel generator are modeled and simulated using the Hybrid Optimization Model for Electric Renewable (HOMER) software.…”

Section: Introductionmentioning

confidence: 99%

Optimal Operation Control of Hydrokineticbased Hybrid Systems

Kusakana

Vermaak

Numbi

2015

Renewable Energy in the Service of Mankind Vol I

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This chapter develops a mathematical programming model to optimize the operation of a hybrid energy system consisting of a hydrokinetic, photovoltaic, wind system, a battery bank, and diesel generator. The optimization approach is aimed at minimizing the cost function subject to the availability of renewable resources, total load energy requirements, as well as the diesel generator and the battery operational constraints. Furthermore, the mathematical models of all other components of hybrid, the proposed system, and the optimization control algorithm is also developed. The main purpose of the control algorithm proposed here is to minimize the use of the diesel generator in the electricity generation process, while maximizing the use of the hydrokinetic system and other available renewable energy sources. For simulation purpose, hourly water velocity, solar irradiation, wind data, and load demand data have been collected and used as an input data. The economic analysis has resulted in the calculation of optimized daily operation cost of the proposed hybrid system in summer and winter conditions. The obtained results represent also a helpful tool for energy planners and justify the consideration of hydrokinetic-based hybrid energy systems more seriously.

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“…Given the wide applicability of SWT in various regions of the world (KUSAKUNA & VERMAAK, 2013a;KUSAKUNA & VERMAAK, 2013b;SIMIC et al, 2013;NOGUEIRA et al, 2014;AL-FATLAWI et al, 2014;NOGUEIRA & ZURN, 2005), the aim of this study was to evaluate the technical and economic feasibility of installing two small wind turbine with horizontal axis of power ratings 6kW and 5kW, considering wind resource in three different cities. The computer program Homer was used to simulate a wind system connected to the public power grid and an isolated wind system with batteries for storage, comparing the two wind turbines regarding the electric power production performance and the generation costs associated.…”

Section: Introductionmentioning

confidence: 99%

Performance of small wind turbines: simulation of electricity supply to loads connected to the public or isolated grid

Rodrigues

Rossi

2016

Eng. Agríc.

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ABSTRACT:The successful in the implementation of wind turbines depends on several factors, including: the wind resource at the installation site, the equipment used, project acquisition and operational costs. In this paper, the production of electricity from two small wind turbines was compared through simulation using the computer software HOMER -a national model of 6kW and an imported one of 5kW. The wind resources in three different cities were considered: Campinas (SP/BR), Cubatão (São Paulo/BR) and Roscoe (Texas/ USA). A wind power system connected to the grid and a wind isolated system -batteries were evaluated. The results showed that the energy cost ($/kWh) is strongly dependent on the windmill characteristics and local wind resource. Regarding the isolated wind system -batteries, the full supply guarantee to the simulated electrical load is only achieved with a battery bank with many units and high number of wind turbines, due to the intermittency of wind power. KEYWORDS:Homer, wind power, electricity. DESEMPENHO DE AEROGERADORES DE PEQUENO PORTE: SIMULAÇÃO DO FORNECIMENTO DE ENERGIA ELÉTRICA A CARGAS CONECTADAS À REDEPÚBLICA OU ISOLADAS RESUMO: O sucesso na aplicação de aerogeradores depende de vários fatores, dentre os quais: o recurso eólico no local de instalação, os equipamentos utilizados, os custos de aquisição e operacionais do projeto. Neste trabalho, comparou-se a produção de energia elétrica de dois aerogeradores de pequeno porte, sendo um modelo nacional de 6kW e um importado de 5kW, por meio de simulação, utilizando o programa computacional HOMER. O recurso eólico de três cidades diferentes foi considerado: Campinas (SP/BR), Cubatão (SP/BR) e Roscoe (TX/EUA). Um sistema eólico conectado à rede elétrica e um sistema isolado eólico -baterias foram avaliados. Os resultados mostraram que o custo da energia ($/kWh) é fortemente dependente das características do aerogerador e do recurso eólico local. Em relação ao sistema isolado eólico -baterias, a garantia de suprimento integral à carga elétrica simulada só é alcançada com um banco de baterias com muitas unidades e alto número de aerogeradores, devido à intermitência da fonte eólica. PALAVRAS-CHAVE:Homer, energia eólica, energia elétrica.

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Hydrokinetic power generation for rural electricity supply: Case of South Africa

Cited by 92 publications

References 6 publications

SWAT analysis of Ikere Gorge basin for hydrokinetic power estimation in selected rural settlements of Oke Ogun, Nigeria

SWAT analysis of Ikere Gorge basin for hydrokinetic power estimation in selected rural settlements of Oke Ogun, Nigeria

Optimal Operation Control of Hydrokineticbased Hybrid Systems

Performance of small wind turbines: simulation of electricity supply to loads connected to the public or isolated grid

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