https://ejeee.elmergib.edu.ly/index.php/ejeee <p>This Journal concerns with researches in elecrtical and electronic engineering </p> <p>ISSN: 2959-0450</p> <p> </p> Elmergib University en-US Elmergib Journal Of Electrical and Electronic Engineering ISSN: 2959-0450 2959-0450 https://ejeee.elmergib.edu.ly/index.php/ejeee/article/view/55 <p>In recent years, there has been a growing global interest in boosting the contribution of solar energy to electrical networks. This is because it is a clean energy source with no negative environmental impact. Furthermore, the development of solar panels is increasing, and so is the price decrease. High-voltage electrical power inverter manufacturing has also advanced, allowing solar energy units to be connected to high-voltage networks. Despite these advantages, there are numerous problems. With growing worry about global warming, most countries are advocating for a cleaner alternative to present fossil fuel-based generation systems. Photovoltaic (PV) installations are becoming more popular because of their adaptability. Compared to typical generation systems, PV is placed closer to load centres. This allows injecting PV at optimal locations and sizes to reduce system losses and improve the voltage profile. This paper considers the optimal PV penetration percentage size and location placement. Simulation is performed on the IEEE 14 bus system using Neplan software. When the system is optimised, the voltage profile improves significantly while losses are reduced.</p> Hussein Alfrd Abdolkarem Ebshish Copyright (c) 2024 Elmergib Journal Of Electrical and Electronic Engineering ISSN: 2959-0450 2024-09-12 2024-09-12 3 2 https://ejeee.elmergib.edu.ly/index.php/ejeee/article/view/58 <p>There has been a growing interest in flexible energy storage devices to meet the diverse requirements of modern applications, such as wearable electronics. Therefore, there is a great need to use energy efficiently and develop renewable and clean energy sources to facilitate sustainable development. Flexible energy storage devices are manufactured to provide energy that can be transported to where it is needed and conserved in terms of the effect of mechanical properties on it. Energy storage devices such as batteries, capacitors, fuel cells, and super-flexible double-layer capacitors include many types in terms of flexibility and performance of charging and discharging energy. Therefore, each type of flexible device has advantages and disadvantages in terms of the various manufacturing stages and methods starting from the basic materials used, performance, cost, and actual life. This paper discusses the findings of researchers on super-flexible double-layer capacitors in terms of the types of flexible materials used in electrodes, current collectors, electrolytes, and basic substrates for the final stages of packaging, as well as in terms of their retention degree and how to increase the energy density of supercapacitors based on material development.</p> ميلاد عرير ابراهيم سالم علي Copyright (c) 2024 Elmergib Journal Of Electrical and Electronic Engineering ISSN: 2959-0450 2024-10-30 2024-10-30 3 2