Analyzing the Cost of Electricity for Solarpv- Diesel Hybrid Generation for Sub-regional Hospital Electrification in Dourbali District, Chad
Mahamat Bichara, Issak
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"Promoting electricity access in rural and peri-urban areas is a common challenge all over the world. The lack of reliable caring in the rural health district, caused by poorly preserved pharmaceutical products that is due to the lack of sustainable electricity. Therefore, this study is mainly analyzed the costs (LCOE, NPC) of electricity for solar PV associated with setting up a hybrid solar PV / diesel generation system for supply the electricity to sub-regional hospital of Dourbali. The daily total load of the hospital determined is 11.05 KW. The solar irradiation resources of the site determine with the NASA database is average of 5.83 KWh/m2. The hospital energy demand varies according to the season, the peak months are March, April, Mai, Jun. The result of simulation and optimization of the Homer pro of the system show the PV system and its storage battery respectively with capacity of 14.1 KW and 59.1 KWh, the battery has a battery life of 14.7 hours with an estimated service life of 11 years. The total capital cost of the system is $74.363; the system net present cost is $ 148,511 and the levelized cost of electricity is $ 0.544. The return on investment is 15.2% and the repayment time is 7.5 years. The economic analysis and the solar resource, it is concluded that this system is very profitable and favorable with the rural portfolio throughout the sub-region. With the reduction of fuel consumption, reduced hours of work of the diesel generator, the emission of CO2 and the energy production share by source 77% of electricity generated from the renewable source and 23% from the diesel, this hybrid system is economically and environmentally sustainable. Finally, this study is an opportunity for the government and the national electricity company and the institutions that contribute to rural development to invest heavily in this sustainable energy to meet the challenge. Indeed, these optimized results from Homer are in accordance with the results made by other researchers in the same hybrid system."