Abstract

In Africa, electrification of rural areas are low and off-grid power supply is needed. Often diesel generators are used to provide local electricity supply. However, the tremendous decrease in the costs of photovoltaics provides an attractive option to substitute existing diesel generation or to build up a new electricity supply in those locations, lowering power costs and environmental impact. Photovoltaics (PV) hybrid system combines photovoltaics with diesel generators and batteries. The design of PV hybrid systems requires an in-depth analysis of load, solar resources and the interaction between PV, diesel generator and storage for the appropriate sizing of components. The team at CIRE TH Cologne has undertaken several projects to examine the feasibility of such PV hybrid systems in different African locations, e.g. a generic Senegalese village in the Thies region. In addition, a modelling tool was developed to analyze the benefits and optimum setup of PV hybrid systems. Furthermore, hands-on experience was gained by installing a PV hybrid system in Ghana, proving the local benefits of this rather new energy source. Key words: Photovoltaic hybrid system, load profiles, energy system modelling, photovoltaics project planning, installation.  

Highlights

  • International Journal of Physical SciencesOften diesel generators are used to provide local electricity supply

  • In Senegal, like in several other African countries, electrification rates of the rural areas are low and off-grid power supply is needed

  • Photovoltaics may even fully substitute existing diesel generator systems. The design of such a system requires an in-depth analysis of load, solar resources, and the interaction PV, diesel generator and storage for the appropriate sizing of the components

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Summary

International Journal of Physical Sciences

Often diesel generators are used to provide local electricity supply. The tremendous decrease in the costs of photovoltaics provides an attractive option to substitute existing diesel generation or to build up a new electricity supply in those locations, lowering power costs and environmental impact. The design of PV hybrid systems requires an in-depth analysis of load, solar resources and the interaction between PV, diesel generator and storage for the appropriate sizing of components. The team at CIRE TH Cologne has undertaken several projects to examine the feasibility of such PV hybrid systems in different African locations, e.g. a generic Senegalese village in the Thies region. Hands-on experience was gained by installing a PV hybrid system in Ghana, proving the local benefits of this rather new energy source

INTRODUCTION
GENERAL SETUP AND BENEFITS OF A PV HYBRID SYSTEM
LOAD PATTERNS AND PROFILE
SOLAR RESOURCES IN DIOURBEL REGION
Type of dispatch LF CC
MODELLING THE PV HYBRID SYSTEM
PV array
The CIRE team was also involved in the planning and
Selection of optimum combination
Findings
Conclusion
Full Text
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