scholarly journals Economic Design of Hybrid Pico-Hydraulic/Photovoltaic Generation System: A Case Study in Egypt

Electronics ◽  
2021 ◽  
Vol 10 (23) ◽  
pp. 2947
Author(s):  
Fathalla F. Selim ◽  
Almoataz Abdelaziz ◽  
Ibrahim B. M. Taha
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
High Efficiency ◽  
Renewable Energy Sources ◽  
Generation System ◽  
System A ◽  
Effective Performance ◽  
Professional Control ◽  
Practical Model

Clean and renewable energy sources are the preferable power system generations for the overall world. This research aims to present a very highly integrated, economic, professional, and simple construction, clean and natural resources usage of the renewable hybrid generation system. This research performs analysis, systematic representation, evaluation, and design of the hybrid proposed system—pico-hydraulic from home usage water and photovoltaic (PV)—to generate an optimal renewable generation system using a new professional control system. Applying this proposed technique in Egypt shows that the hybrid system successfully overcame Egypt’s energy crisis. Renewable energy will rise to 8.782% by increasing 7.323% (14,408.83 GWh/Y). Besides, this system increases the power supply reliability; it gives an additional emergency supply and reduces the exhausts from other generation stations (e.g., CO2). The saving from this hybrid system is very effective for; the residential sector (subscribes), which will be ranged from 9599.298 million E£/10Ys up to 86,393.68 million E£/10Ys that equals 5399.6 million $, government to use this extra generation energy to reduce the maximum loads from various stations. A practical model has been presented with results to verify the high efficiency of the proposed system that illustrates the effective performance of the used hybrid system.

Wind, Photovoltaic anD Mini-Hydro Hybrid Generation in Bolivia: A Case Study at a Mountainous Village

2005 ◽  
Vol 29 (3) ◽  
pp. 271-286 ◽  
Author(s):  
Tsutomu Dei ◽  
Kiyoshi Hirata ◽  
Izumi Ushiyama
Keyword(s):  
Renewable Energy ◽  
Energy Balance ◽  
Power Output ◽  
Renewable Energy Sources ◽  
Solar Irradiation ◽  
Energy Sources ◽  
Generation System ◽  
Hybrid Generation ◽  
Site Monitoring

This paper investigates the most feasible configuration for hybrid generation by indigenous renewable energy sources in Chachacomani village at 4,220 meters elevation in Bolivia. Site monitoring of wind, solar irradiation and the water level of the Jarma River was conducted for a year. The data enabled potential power output from Wind, PV and Micro Hydro generation system to be estimated. Energy balance calculations for different configuration of hybrid generation system were made. The results show that the three energy supplies would be complementary for integrated power.

scholarly journals Techno-Economic Analysis of a Stand-Alone Hybrid Wind-Power Fuel-Cell Grid System: A Case Study in Shahryar Region of Tehran

2020 ◽  
Vol 24 (1) ◽  
pp. 691-705
Author(s):  
Abozar Hashemi ◽  
Ghasem Derakhshan ◽  
M. R. Alizadeh Pahlavani ◽  
Babak Abdi
Keyword(s):  
Renewable Energy ◽  
Fuel Cell ◽  
Wind Power ◽  
Hybrid System ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Production Capacity ◽  
Economic Optimization ◽  
Wind Power Plants

Abstract Decreasing fossil energy resources and increasing greenhouse gas emissions increase the need for clean and renewable energy sources day by day. One of the sources of renewable energy is wind power, which has been constantly evolving in recent years. Wind power plants are sometimes unresponsive during peak hours, so a backup storage system seems essential for these power plants. In this study, a hybrid system is presented for connection to wind power plants consisting of fuel cell and hydrogen production, to provide reliable power and valuable by-products. In this paper, a case study is conducted for the desired system in the Shahryar County. The techno-economic optimization of the above system indicates that in the best design (consisting of three wind turbines), the annual production capacity of the hybrid system will be 1795 MWh, of which 12 % is the share of fuel cells. The results show that the hybrid system increases the capacity factor of the wind power plant by 2.8 %. The calculated cost of energy (COE) and the net present cost (NPC) for the hybrid system would amount to $ 0.77 and $ 5 235.066, respectively.

scholarly journals Portfolio optimization of power plants by using renewable energy in Iran

2020 ◽  
Author(s):  
Seyedeh Asra Ahmadi ◽  
Seyed Mojtaba Mirlohi ◽  
Mohammad Hossein Ahmadi ◽  
Majid Ameri
Keyword(s):  
Renewable Energy ◽  
Portfolio Optimization ◽  
Energy Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Modern Society ◽  
Sustainable Growth ◽  
Electricity Sector ◽  
Capital Costs

Abstract Lack of investment in the electricity sector has created a huge bottleneck in the continuous flow of energy in the market, and this will create many problems for the sustainable growth and development of modern society. The main reason for this lack of investment is the investment risk in the electricity sector. One way to reduce portfolio risk is to diversify it. This study applies the concept of portfolio optimization to demonstrate the potential for greater use of renewable energy, which reduces the risk of investing in the electricity sector. Besides, it shows that investing in renewable energies can offset the risk associated with the total input costs. These costs stem from the volatility of associated prices, including fossil fuel, capital costs, maintenance, operation and environmental costs. This case study shows that Iran can theoretically supply ~33% of its electricity demand from renewable energy sources compared to its current 15% share. This case study confirms this finding and predicts that Iran, while reducing the risk of investing in electricity supply, can achieve a renewable energy supply of ~9% with an average increase in supply costs. Sensitivity analysis further shows that with a 10% change in input cost factors, the percentage of renewable energy supply is only partially affected, but basket costs change according to the scenario of 5–32%. Finally, suggestions are made that minimize risk rather than cost, which will bring about an increase in renewable energy supply.

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