scholarly journals Development of Stand-Alone Green Hybrid System for Rural Areas

2020 ◽  
Vol 12 (9) ◽  
pp. 3808
Author(s):  
Solomon Kiros ◽  
Baseem Khan ◽  
Sanjeevikumar Padmanaban ◽  
Hassan Haes Alhelou ◽  
Zbigniew Leonowicz ◽  
...  
Keyword(s):  
Hybrid System ◽  
Rural Areas ◽  
Load Forecasting ◽  
Cost Effective ◽  
Renewable Energy Resources ◽  
Battery Storage ◽  
Diesel Generator ◽  
Electrical Grid ◽  
Low Load ◽  
Set Up

Despite the tremendous efforts exhibited by various utilities around the world during the past few years, there are still exceedingly many remote regions unreached by the electrical grid. For those regions, the enormous available potential of renewable energy resources is believed to be useful for the development of a stand-alone power supply system. This paper presents the modeling of a stand-alone hybrid system for the remote area of Ethiopia. A comparison of the economic performance of various scenarios of a stand-alone photovoltaic (PV)-wind hybrid system, with battery storage and diesel as a backup for electrifying remote rural areas, is presented. Therefore, a practical example, Kutur village of Awlio kebele of the Axum district, Ethiopia (which is 30 km away from the closest national grid) is considered for this research. Two electric load scenarios are estimated by considering the set of incandescent and efficient lamps for lighting for the 120 existing households. The above-mentioned solar radiation and wind speed are then used as an input to simulate the hybrid set-up for the high and low load estimation using HOMER software. The simulation result shows that the net present costs (NPC) corresponding to the high and low load scenarios is $262,470 and $180,731, respectively. Besides, an essential load forecasting is performed to see the effect of the increase in electric demand of the community on the required investment to install a stand-alone hybrid set-up. The NPC after load forecasting is found to be more than three folds of the NPC required for the reference year. In both cases, the simulation results indicate that using a stand-alone PV-wind hybrid system with battery storage and a diesel generator as a backup for electrifying Kutur village is cost-effective and comparable against the cost required for electrifying the village by extending the grid.

Techno-Economic Performance Evaluation and Enhancement for a PV – Diesel Hybrid System

2016 ◽  
Vol 839 ◽  
pp. 130-135
Author(s):  
Ivan Tendo ◽  
Chatchai Sirisamphanwong
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Energy Demand ◽  
Storage System ◽  
System Size ◽  
Performance Ratio ◽  
Optimal Size ◽  
Battery Storage ◽  
Diesel Generator ◽  
Energy Fraction

In this research paper, an illustration for system size optimization for a stand-alone PV – diesel hybrid system is obtained. The requirement is to obtain an optimal size that can meet energy demand at an optimized cost for a given lifetime period of the project, this will be achieved using HOMER software to further improve the system parameters like performance ratio, renewable energy fraction, MATLAB will be used. This research study will be done basing on a system currently installed at the School of Renewable Energy, Naresuan University (SERT), this system has a capacity of 120 kW, and it is a hybrid system with PV array, Diesel generator and battery storage system. The cost parameters that will be addressed are; - Net present cost (NPC), Cost of Energy (COE), Capital cost (CC). The initial size of the hybrid system is PV-120kW, Diesel generator -100kW and battery storage of 200kWh after modelling and simulation with HOMER software using special models to show the predicted performance of the final outcome, the optimal size created has a PV size of 100kW, diesel generator with a size of 100kW and battery storage of 100kWh and compared to the initial system COE od 1.01$/kWh, the optimal size has a COE of 0.934$/kWh.

scholarly journals Dynamic Programming for Optimal Energy Management of Hybrid Wind–PV–Diesel–Battery

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3039 ◽  
Author(s):  
Luu An ◽  
Tran Tuan
Keyword(s):  
Dynamic Programming ◽  
Energy Management ◽  
Hybrid System ◽  
Electricity Market ◽  
Environmental Benefits ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Diesel Generator ◽  
Optimal Energy ◽  
Optimal Energy Management

With the dramatic development of renewable energy resources all over the world, Vietnam has started to apply them along with the conventional resources to produce the electrical power in recent years. Visually, the aim of this action is to improve the economic as well as the environmental benefits. Therefore, a vast of hybrid systems that combine Wind turbine, Photovoltaic (PV), Diesel generator and battery have been considered with different configurations. According to this topic, there are lots of research trends in the literature. However, we aim to the optimal energy management of this hybrid system. In particular, in this paper, we propose an optimization method to deal with it. The interesting point of the proposed method is the usage of the information of sources, loads, and electricity market as an embedded forecast step to enhance the effectiveness of the actual operation via minimizing the operation cost by scheduling distributed energy resources (DER) while regarding emission reduction in the hybrid system is considered as the objective function. In this optimization problem, the constraints are determined by two terms, namely: the balance of power between the supply and the load demand, and also the limitations of each DER. Thus, to solve this problem, we make use of the dynamic programming (DP) to transform a system into a multi-stage decision procedure with respect to the state of charge (SOC), resulting in the minimum system cost (CS). In order to highlight the pros of the proposed method, we implement the comparison to a rule-based method in the same context. The simulation results are examined in order to evaluate the effectiveness of the developed methodology, which is a so-called global optimization.

scholarly journals Rural Electrification of Somalia Using WT-PV-DG-Battery Hybrid System

2021 ◽  
Author(s):  
Swathi Kumar ◽  
Richard Blanchard
Keyword(s):  
Hybrid System ◽  
Operating Cost ◽  
Cost Effective ◽  
Sub Saharan Africa ◽  
Diesel Generator ◽  
African Countries ◽  
Diesel Generators ◽  
Sub Saharan ◽  
The Cost ◽  
Wind Resource

Around 14% of the global population does not have access to electricity. About 95% of those are living in rural Sub-Saharan Africa. Often in these regions, diesel generators are the only source of electricity. The operating cost of these diesel generators is high. However, solar and wind energy are available in most of African countries. This study presents the analysis of designing an off-grid hybrid system with a wind turbine, PV, diesel generator, and battery to power a hospital, school, and 200 household village in four locations across Somalia. The research investigated the availability of wind-solar resources in selected locations. Designing of the system and economic-technical calculations were performed using HOMER. The selection of the optimum design was based on the Cost of Electricity and Net Present Cost. The results show that for Kabaal and Ceel Buur, a WT-PV-DG-Battery is the optimal system as the wind resource in these regions is high. For Saakov and Baki, a PV-DG-Battery system proves to be optimum as the wind resource is limited here. The study also evaluated the control strategy and proved that combined dispatch was the most cost-effective for these locations. The study concluded that hybrid systems are more economical than diesel systems.

scholarly journals Optimal configuration of hybrid PV-generator (diesel/GPL) for a decentralized production of electricity in Algeria

2020 ◽  
Vol 11 (4) ◽  
pp. 2038
Author(s):  
Amara Mohamed ◽  
Zablah Abdelkader ◽  
Bouanane Abdelkrim
Keyword(s):  
Power System ◽  
Hybrid System ◽  
Rural Areas ◽  
Unit Cost ◽  
Operating Cost ◽  
Peak Load ◽  
Diesel Generator ◽  
Hybrid Power System ◽  
Simulation And Optimization ◽  
Hybrid Power

The absence of electricity in rural areas is one of the major challenges faced by many developing countries like Algeria. This work has been devoted to the design of an off-grid renewable hybrid power system for a rural village in the region of Tindouf located in south Algeria. The main objective of this study is to determine the optimum size of the hybrid power system able to fulfill the requirements of 709 kWh/day primary load with 66 kW peak load for a remote area of 230 households. This study is based on simulation and optimization of a (PV-Diesel) and (PV-GPL) hybrid system with a technical-economic analysis. Simulation results showed that electrifying using a PV/GPL generator hybrid system is more advantageous when compared to the PV/diesel generator hybrid system as it has lower operating costs and emissions. The comparison is based on per unit cost of electrical energy production, operating cost of conventional fossil fuel-based energy sources and pollutants gases reduction.

scholarly journals Performance of Hybrid Solar Photovoltaic–Diesel Generator and Battery Storage Design for Rural Electrification in Malaysia

2021 ◽  
Vol 16 (5) ◽  
pp. 883-893
Author(s):  
Amanda Halim ◽  
Ahmad Fudholi ◽  
Kamarulzzaman Sopian ◽  
Stephen J. Phillips
Keyword(s):  
Rural Areas ◽  
Energy Demand ◽  
Appropriate Technology ◽  
Technology Selection ◽  
Rural Electrification ◽  
Solar Photovoltaic ◽  
Diesel Generator ◽  
Battery System ◽  
Hybrid Energy ◽  
Set Up

In recent years, the concept of hybrid energy systems (HESs) has been widely considered in the rural electrification of isolated or off-grid areas. Many cases have been studied since 2015, and the results indicate that an optimally designed HES is more reliable and economical than single energy source systems. Serving electricity to rural areas which are isolated from the central grid and thus suffer from lack of access requires an appropriate technology selection. In the provision of non-fluctuating electricity to a village on an island located in Mersing, Malaysia, solar energy is perceived to be the best addition to the existing power system that runs with a diesel generator as the main and single source. The area receives 4.46 kWhm−2 of solar radiation per day on average having the hybrid photovoltaic-diesel-battery system set up to supply the energy demand from about 16 households with other public buildings. This paper discusses the feasibility of the proposed system design for rural electrification at Kg Teluk Berhala, Aur Island Mersing, Malaysia and its performance is analysed using HOMER Pro®. A comparative analysis against existing configuration (baseline) and hypothetical configuration was conducted in justifying the hybrid-PV-diesel-battery as the best option for this rural electrification.

scholarly journals Application of DC-AC Hybrid Grid and Solar Photovoltaic Generation with Battery Storage Using Smart Grid

2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
Shoaib Rauf ◽  
Nasrullah Khan
Keyword(s):  
Smart Grid ◽  
Power Systems ◽  
Distribution System ◽  
Intelligent System ◽  
Cost Effective ◽  
Practical Implementation ◽  
Solar Pv ◽  
Renewable Energy Resources ◽  
Battery Storage ◽  
Effective Manner

Smart grid for the past few years has been the prime focus of research in power systems. The aim is to eliminate load shedding and problematic blackout conditions, further offering cheap and continuous supply of electricity for both large and small consumers. Another benefit is to integrate renewable energy resources with existing dump grid in more efficient and cost-effective manner. In past few years, growing demand for sustainable energy increases the consumption of solar PV. Since generation from solar PV is in DC and most of the appliances at home could be operated on DC, AC-DC hybrid distribution system with energy management system is proposed in this paper. EMS helps to shift or control the auxiliary load and compel the users to operate specific load at certain time slots. These techniques further help to manage the excessive load during peak and off peak hours. It demonstrates the practical implementation of DC-AC network with integration of solar PV and battery storage with existing infrastructure. The results show a remarkable improvement using hybrid AC-DC framework in terms of reliability and efficiency. All this functioning together enhances the overall efficiency; hence, a secure, economical, reliable, and intelligent system leads to a smart grid.

A comprehensive review on hybrid renewable energy systems

2020 ◽  
Vol 34 (27) ◽  
pp. 2050290
Author(s):  
Karan Sood ◽  
Eswaramoorthy Muthusamy
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Rural Areas ◽  
Energy Systems ◽  
Cost Effective ◽  
Comprehensive Review ◽  
Renewable Energy Systems ◽  
Water Distillation ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy

Hybrid Renewable Energy Systems (HRESs) are noteworthy devices for enhancement of reliability and performance compared to standalone systems, which are in a combination of more than one energy conversion system in a single unit. The recent developments in materials and technologies of HRESs are cost-effective and are more suitable power options for isolated rural areas. Many researchers have reported to have enhanced the performance of HRESs across India. Hence, this paper presents a comprehensive review of various HRESs that have been reported for their performance evaluation with respect to economic distance limit, techno-economic sensitivity, and optimum analysis. Also, different hybrid combinations are compared based on the factor of Net Present Cost (NPC), Cost of Energy (COE), renewable fraction, maximum renewable penetration, operational cost, and/or emission. Some case studies on various combinations of HRES for telecommunication application, rural electrification and water distillation are discussed and compared. It is concluded from the comprehensive review that there is scope for further studies on hybrid system across the country with adoption of different and newer combinations, materials and thermodynamic approaches. This paper will be helpful to researchers and scientists in understanding the state-of-the-art technologies in the hybrid system.

scholarly journals Isolation Microgrid Design for Remote Areas with the Integration of Renewable Energy: A Case Study of Con Dao Island in Vietnam

2021 ◽  
Vol 3 (4) ◽  
pp. 804-820
Author(s):  
Quynh T. Tran ◽  
Kevin Davies ◽  
Saeed Sepasi
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Peak Load ◽  
Design Procedure ◽  
Renewable Energy Resources ◽  
Power Losses ◽  
Diesel Generator ◽  
Pv System ◽  
Remote Areas

In remote areas, extending a power line to the primary electricity grid can be very expensive and power losses are high, making connections to the grid almost impossible. A well-designed microgrid that integrates renewable energy resources can help remote areas reduce investment costs and power losses while providing a reliable power source. Therefore, investigating the design of an independent and economically practical microgrid system for these areas is necessary and plays an important role. This paper introduces a design procedure to design an isolated microgrid using HOMER software for remote areas. In Vietnam, due to the obstruction of the mountainous terrain or the isolated island location, many remote areas or islands need electrification. A simple case study of a hybrid system with a 60 kW peak load demand on Con Dao island in Vietnam is used to illustrate the proposed design method. Specifically, a hybrid system that includes a PV system, batteries, and a diesel generator is designed. To provide the full information of the designed hybrid system designed, each solution is analyzed and evaluated in detail according to the sensitivity parameters.

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