ComAp, together with our partner, United for Electromechanical Supplies, provided a Hybrid Microgrid solution for a community development project in New Cairo, Egypt, to upgrade the community's power supply system through the implementation of renewable energy, reducing its dependency on diesel. Thi Contact online >>
ComAp, together with our partner, United for Electromechanical Supplies, provided a Hybrid Microgrid solution for a community development project in New Cairo, Egypt, to upgrade the community''s power supply system through the implementation of renewable energy, reducing its dependency on diesel. This project was run by the Better Home Group, an Egyptian real estate investment and development group that specialises in developing sustainable, world-class communities.
As a company that takes pride in developing modern and sustainable residential areas, Better Home wanted to ensure that their final build would have a low environmental impact. As such, they knew it would be necessary to take the appropriate steps to implement a sustainable source of energy to reduce the community''s diesel consumption.
Better Home decided to upgrade their power supply system by installing 500 KVA photovoltaics with four Huawei KTL inverters. This system would be connected to both a standby 550 KVA gen-set powered by a Cummins electronic engine and the main grid transformer in the future, combining the use of renewable solar energy with a traditional gen-set.
To achieve this, United for Electromechanical Supplies, with the support of ComAp, implemented a hybrid control panel operated by ComAp''s InteliGen 500 Microgrid controller alongside the InteliFieldbus Gateway. This facilitates the connection between the different sources of energy and ensures that the variable energy demand is met.
The InteliGen 500 Microgrid monitors and controls all available power sources to meet the load demand. ComAp''s control panel communicates with the four inverters via Modbus protocol. This facilitates control over inverter performance, allowing for the ramp-up/ramp-down of both active and reactive power based on given conditions. To enable remote monitoring capabilities, each unit is registered with ComAp''s WebSupervisor fleet management platform, allowing for easy remote access on devices via the WebSupervisor app. Additionally, the control panel can be accessed via the local network or internet using a customised InteliSCADAsoftware.
"United for Electromechanical Supplies designed and implemented the plant control system, ensuring the highest level of efficiency and reliability. Moreover, their technical support was very quick and efficient."
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The Egyptian government plans to develop the Nubian villages in Wadi Karkar, where 8 villages will be established on an area of 400 acres, and all services will be provided there including local power networks to meet the electrical energy requirements of approximately 2024 Nubian homes. One of these areas is governmental villages called the new Nubian city of Wadi Karkar. These villages are located in Wadi Karkar, which is 16 km from the lake Nasser in the desert.
The study compares the utilization of different renewable energy sources, particularly solar PV systems, and small-scale wind turbines. By assessing their performance and determining the optimal utilization between the two sources, the researchers provide practical guidance on selecting the most suitable renewable energy option for the understudy areas.
The current study analysis helps maximizing the utilization of available resources and contributes to the overall efficiency and effectiveness of the microgrid systems.
Highlighting the impact of solar PV mechanical tracking systems on the overall cost and performance of the energy system. By examining different tracking systems and their influence on critical factors such as NPC, REF, additional electrical power, and GHG emissions
The study focuses on practical considerations and real-world implementation of renewable energy technologies and offers valuable information to optimize the performance of solar PV systems.
The current work evaluates the impact of battery technologies, specifically lead-acid and lithium-ion, on the overall cost of the energy system. By comparing these technologies and their costs and performance characteristics, the study provides valuable insights into incorporating energy storage into renewable energy systems. This analysis assists in making informed choices about the most suitable battery technology based on cost and performance considerations.
Some sensitivity parameters have been studied, such as the PV panel price, fuel price, and derating factor of the PV panels, to show the uncertainty of the proposed system.
In a nutshell, the study contributes to the existing body of knowledge. It provides a comprehensive and well-rounded analysis of the optimal design for a hybrid energy microgrid system in remote isolated areas. Its contributions to techno-economic analysis, comparison of renewable energy sources, evaluation of solar PV tracking systems, and assessment of battery technologies make it valuable for decision-makers seeking to bring reliable electricity and sustainable development to remote communities. Obviously, the current work highlights renewable energy deployment''s economic and environmental benefits and offers practical guidance on system design, technology selection, and optimization.
This paper has been organized as follows: in Section "Structure of the Proposed Microgrid" the structure of the proposed microgrid has been discussed including the data needed to be utilized as inputs for getting the optimal design of the microgrid in addition to the components that are suggested to be employed, Section "Mathematical Formulation of the Problem" describes the mathematical formulation of the problem. The obtained results and discussion are presented in Section "Results and Discussions". Sensitivity analysis has been done in Section "Sensitivity Analysis" to examine the effect of the change of specific variables on the system feasibility. Finally, this research is concluded in Section "Conclusion and Policy Implications".
a Site location in Aswan, b Structure of the proposed RES-based microgrid
The following sub-sections give more details for the data that has been utilized as inputs for the software aiming to obtain an optimal design i.e. the electrical loads, solar irradiation, ambient temperature, wind speed. Also, the components that are suggested to be employed in the proposed isolated microgrid such as photovoltaic modules, wind turbine, Battery Energy Storage System (BESS), DC/AC converters, and diesel generator have been discussed.
Electrical loads in residential homes can vary greatly depending on the size and type of house, the number of occupants, and the type of the used appliances and fixtures. The typical electrical loads for a single-family home will include lighting, heating and cooling, appliances, hot water heating, and other miscellaneous items. Lighting typically accounts for the most significant portion of the electrical load, followed by heating, cooling, and appliances. Water heating and other miscellaneous items generally account for a minor part of the electrical load. In this study, for designing the understudy MG, average loads per house has been calculated for a small village composed of 10 houses with 5 occupants each. Table 1 shows the various loads existing in each house.
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