Techno-economic Analysis of a Hybrid Renewable Energy System: A Case study of a small village in Tanahu district of Nepal
Authors: Bisam Binod Khanal, Sandeep Dhami, Bhrigu Raj Bhattarai
Abstract— This paper is based on a case study of the electrification of a small village in Tanahun, Nepal, called Kota, which has 512 residents. The power demand is estimated based on different classifications for making it more practicable. After doing market research, the prices of equipment components are determined in order to carry out the system’s techno-economic design. The solar, micro-hydro, wind, battery, diesel genset, fundamental loads, and deferrable loads (water pumping and purification load) make up the microgrid. This study explores the feasibility of utilizing both the existing microhydro power and renewable energy sources to meet the village’s energy needs and the analysis is performed using HOMER. The share of energy from renewable resources has been about 98% from the analysis. The hybrid energy system is also modeled and simulated in MATLAB for the energy flow analysis. To analyze the energy flow pattern, the hybrid energy system is simulated both with and without a solar charge controller. The implementation of the solar charge controller limits the amount of excess energy to 7.73 % in comparison to that without charge controller i.e. 34.74 %. and 32.4% obtained from Homer analysis.
Keywords— Autonomous control, dumped load, energy storage, hybrid energy, load-shedding, micro-grid, power management, renewable sources, rural electrification, solar power, wind power
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Published In: International Conference on Role of Energy for Sustainable Social Development (RESSD-2023)
Date of Conference: 14th-15th May 2023
Conference Location: Kathmandu, Nepal
Publisher: IEEE Power and Energy Society Nepal Chapter
Cite the paper as:
B. B. Khanal, S. Dhami, B. R. Bhattarai, “Techno-economic Analysis of a Hybrid Renewable Energy System: A Case study of a small village in Tanahu district of Nepal”, International Conference on Role of Energy for Sustainable Social Development, 14th-15th May 2023, Kathmandu, Nepal