Nashrieh Shimi va Mohandesi Shimi Iran

Nashrieh Shimi va Mohandesi Shimi Iran

Optimal Design and Techno-Economic Analysis of a Hybrid Power System for Sustainable Electricity in Rural Area: A Case Study

Document Type : Research Article

Authors
Akbar Maleki
Ali Sadeghi
Seyed Abolfazl Mousavian
Department of Mechanical Engineering, Shahrood University of Technology, Shahrood, I.R.IRAN
Abstract
Today, providing sustainable energy for remote areas has become one of the fundamental global challenges. In this regard, the use of hybrid energy systems based on renewable resources has been considered as a practical and economical solution. The present research focuses on multi-objective optimization of a hybrid energy system including photovoltaic panels, wind turbines, diesel generators, and batteries for supplying electricity to a sample village. Design objectives include minimizing system costs, maximizing reliability and reducing carbon dioxide emissions. Optimization was performed using HOMER Pro software and two energy management strategies. In this study, in addition to technical, economic, and environmental analyses, three comprehensive sensitivity analyses were conducted on fuel price, solar radiation intensity, and wind speed to evaluate the stability and flexibility of the proposed system in facing changes in key parameters. Results show that the combined wind-solar-diesel-battery system is superior to other configurations in terms of economic and environmental aspects, with its energy cost and net present cost being $0.191 per kilowatt-hour and $4.65 million, respectively. Additionally, sensitivity analysis showed that increasing fuel prices and changes in renewable resources can affect the optimal selection of system components and the share of each source. Finally, the use of the proposed hybrid system compared to a fully diesel system results in an average reduction of more than 73% in carbon dioxide emissions and provides greater stability in supplying energy to remote areas.
Keywords
Optimization
Hybrid power systems
Solar-wind-diesel system
Techno-economic analysis
Sustainable electrification

Subjects

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