by Jehad H. Al-Sulaimani and Ahmed M. Nahhas
Original Research
Saudi Arabia intends to promote solar power generation as a discipline in most of the country's universities, as well as large solar projects and renewable energy in general. To achieve solar energy goals, the academic community of engineers and professors is now conducting a variety of facilities, research projects and analytical studies for all regions of the country to provide clean energy in the future. As a result, the country's latest solar improvements are undergoing a period of development for scientific research and analytical studies. This paper is presenting the study of the means to facilitate the work of projects in the field of solar energy in Riyadh and Jubail Regions, which is to complete the calculation of the total cost of both stations based on our previously published study. The PVsyst 7.1 simulation software is used to simulate the installation of photovoltaic cells on Saudi Arabia different regions including as the eastern western coast and the center region. Also, the tracker system may be used to track the sun and create more electricity from PV systems. The paper presents the design of three-dimensional models of two solar power plants, one in Riyadh and the other in Jubail, using Sketchup software. Design two-dimensional layouts for both stations on AutoCAD software. Also Calculating the estimated cost of each power plant.
American Journal of Energy Research. 2024, 12(1), 21-32. DOI: 10.12691/ajer-12-1-3
Pub. Date: March 10, 2024
by Abdulaziz Alqurashi and Ahmed M. Nahhas
Review Article
The Saudi Arabia intends to promote solar power generation as a discipline in most of the country's universities, as well as large solar projects and renewable energy in general. To achieve solar energy goals, the academic community of engineers and professors is now conducting a variety of facilities, research projects and analytical studies for all regions of the country to provide clean energy in the future. As a result, the country's latest solar improvements are undergoing a period of development for scientific research and analytical studies. This paper is presenting the study of the means to facilitate the work of projects in the field of solar energy, which is to complete the calculation of the total cost of both stations based on our previously published study. The (PVsyst 7.1) simulation software is used to simulate the installation of photovoltaic cells on Saudi Arabia different regions including as the eastern western coast and the center region. Also, the tracker system may be used to track the sun and create more electricity from PV systems.
American Journal of Energy Research. 2024, 12(1), 8-20. DOI: 10.12691/ajer-12-1-2
Pub. Date: March 05, 2024
by S. Seck, A. Sow, M. S. Mané, A. Ndiaye, E. M. Keita, B. Ndiaye, B. Mbow and C. Sène
Original Research
Recently, organic/inorganic hybrid perovskite materials have attracted particular interest in the research community for future generations of photovoltaic systems, due to their manufacturing process ease by solution treatment, their low cost and exceptional optoelectronic properties. Owing mainly to these superior optoelectronic properties and the long carrier lifetime in these materials, perovskite-based photovoltaic devices have achieved high conversion efficiencies up to 25%. However, the presence of lead which is very environmental and human harmful together with the stability issues of these materials constitute major problems encountered in the development of photovoltaic devices based on these materials. Faced with these problems, a large number of alternative absorber materials based on lead-free perovskites and/or inorganic perovskites are increasingly being explored. In this work, we carried out a modeling study of photovoltaic devices using the CH3NH3Sn1-yGeyI3 lead-free perovskite as absorbing material. The ZnO(n+)/Cu2O(n)/CH3NH3Sn1-yGeyI3(p) structure is considered for this purpose in which 0≤y≤1. The evolution of the internal quantum efficiency is analyzed as a function of the relative proportion of tin and germanium in the perovskite and also as a function of various other parameters including the thickness of the base and the minority carrier diffusion length in this material. The substitution of lead by metals such as tin and/or germanium leads to lead-free perovskites having opto-electronic properties adapted to the production of high-performance photovoltaic devices. Materials of high optoelectronic and structural properties are in particular obtained for Ge content in the perovskite less than 0.50. In this range of the Ge content, our study shows that the best photovoltaic devices are obtained for values of the germanium (Ge) content close to 0.25
American Journal of Energy Research. 2024, 12(1), 1-7. DOI: 10.12691/ajer-12-1-1
Pub. Date: February 16, 2024