scholarly journals Use of a Hybrid Wind—Solar—Diesel—Battery Energy System to Power Buildings in Remote Areas: A Case Study

2021 ◽  
Vol 13 (16) ◽  
pp. 8764
Author(s):  
Khalid Almutairi ◽  
Seyyed Shahabaddin Hosseini Dehshiri ◽  
Seyyed Jalaladdin Hosseini Dehshiri ◽  
Ali Mostafaeipour ◽  
Alibek Issakhov ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Energy System ◽  
Diesel Generator ◽  
Case Scenario ◽  
Fuel Price ◽  
Worst Case ◽  
Environmental Consequences ◽  
Hybrid Renewable Energy System ◽  
Battery Energy

The emerging environmental consequences of overdependence on fossil fuels have pushed many countries to invest in clean and renewable sources of power. Countries like Iran where these sources can be found in abundance can take advantage of this potential to reduce their dependence on fossil fuels. This study investigated the feasibility of the standalone use of a hybrid renewable energy system (HRES) to power buildings in the Bostegan village in the Hormozgan province of Iran. Technical, economic, and environmental assessments were performed with the help of the Hybrid Optimization of Multiple Energy Resources (HOMER) software, and the optimal configuration for the system components was determined accordingly. The results showed that the simultaneous use of wind and solar systems with a converter and a backup system comprised of a diesel generator and batteries will be the most economic option, offering electricity at a cost of 1.058 USD/kWh and with a renewable fraction of 64%. After selecting the most optimal system using the step-wise weight assessment ratio analysis (SWARA) and weighted aggregated sum product assessment (WASPAS) techniques, a sensitivity analysis with 27 parameter settings was performed to determine the effect of fuel price fluctuations and the uncertainty in the renewable energy potentials on the results. This analysis showed that in the worst-case scenario, the price of electricity will reach as high as 1.343 $/kWh. In the end, the study investigated an alternative scenario where the generated power is used for hydrogen production, which showed that the system output can be used to produce 643.63 ton-H2/year.

scholarly journals Techno-economic Analysis & Optimal Planning of Hybrid Renewable Energy Systems

2019 ◽  
Vol 9 (2) ◽  
pp. 631-637
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Operating Cost ◽  
Energy System ◽  
Energy Sources ◽  
Fuel Cost ◽  
Diesel Generator ◽  
Hybrid Renewable Energy System ◽  
Renewable Energy System ◽  
Hybrid Renewable Energy

The global climate change and rapidly growing population over the decades are creating an enormous burden on conventional energy sources. Global environmental concern is expected for the proper planning of renewable sources to increase a positive impact on global warming. The hybrid renewable energy system is proposed for optimum sizing, costing, quality, and reliability of supply for the standalone system. This research study also includes a multi-objective optimization of the Net Present Cost (NPC)t, fuel cost, operating cost, and Cost of Energy of the hybrid system. A hybrid renewable energy system has been designed, which includes solar, wind, battery, and diesel generator for a standalone off-grid. The simulation and techno-economic analysis of case studies indicate that the hybrid system decreases the operating cost according to meteorological conditions. The employed algorithm, for power management, results in minimum use of diesel generator and a reduction in fuel cost. Furthermore, the proposed system shows better results when analyzed for Loss of power supply probability, Renewable factor, Carbon content, and Sensitivity. Thus, the proposed model proves that minimum utilization of diesel generator requires maximum utilization of renewable energy sources, thereby reducing the emission of greenhouse gases and reducing global warming.

scholarly journals Analysis of Hybrid Grid-Connected Renewable Power Generation for Sustainable Electricity Supply in Sierra Leone

2021 ◽  
Vol 13 (20) ◽  
pp. 11435
Author(s):  
Foday Conteh ◽  
Hiroshi Takahashi ◽  
Ashraf Mohamed Hemeida ◽  
Narayanan Krishnan ◽  
Alexey Mikhaylov ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Sierra Leone ◽  
Renewable Energy Sources ◽  
Economic Feasibility ◽  
Maintenance Cost ◽  
Energy Sources ◽  
Diesel Generator ◽  
Case Scenario ◽  
Hybrid Renewable Energy System ◽  
Operations And Maintenance

The provision of electricity in a reliable and sustainable manner in provincial towns and villages in the small West Africa state of Sierra Leone requires the adoption of appropriate technologies. The rapid increase in electricity demand has generated great interest in how to tackle a possible long-lasting energy deficiency in the country. This paper aims at analyzing the techno-economic feasibility of a hybrid renewable energy system (HRES) for the sustainable rural electrification of Lungi Town, Port Loko District, Sierra Leone. Optimization, economic, reliability, and sustainability analyses were carried out using a genetic algorithm (GA), with the main objectives of minimizing the loss of power supply probability (LPSP) and cost of energy (COE). Three different case scenarios were configured, using a diesel generator (DG), wind/PV/DG/battery, and wind/PV/battery. Various combinations of these case scenarios were compared to determine which option was the most economically viable. In order to determine the case scenario with the lowest LPSP and COE, the operations and maintenance costs of the three cases were calculated. Using only DG for case one, the operations and maintenance cost amounted to USD 1,050,348.12/year. The operation and maintenance cost for case two, which included wind/PV/DG/battery, was found to be USD 561,674.06/year. The operations and maintenance cost for case three, which included wind/PV/battery, was found to be USD 36,000/year. In standalone microgrids, however, the use of renewable energy sources is not reliable due to the uncertainty of renewable energy sources. Consequently, the simulation results show that the wind/PV/DG/battery-based HRES is the most cost-effective, reliable, and sustainable for the specific location in comparison to the current traditional method of electricity generation. Since there is abundant solar radiation with substantial wind speeds across the country, this HRES can be applied in most rural and remote areas in place of the current diesel generators (DGs) that are widely deployed in the country.

scholarly journals Future Challenges in Energy Management System for Hybrid Renewable Energy System

2020 ◽  
Vol 8 (6) ◽  
pp. 913-919
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Diesel Generator ◽  
Hybrid Renewable Energy System ◽  
Renewable Energy System ◽  
Future Challenges ◽  
Hybrid Renewable Energy

Taking into consideration of continuously increasing consumption of the electricity and perturb towards environmental issues, renewable energy sources have been broadly used for generation of electricity. A Hybrid Energy System can be elucidated as systems which consist of various energy sources such as wind, solar, fuel cell, diesel generator and storage systems such as batteries to store energy are integrated and interconnected to satisfy the load energy demand. This paper infers the generation of electricity by utilizing the Hybrid Renewable Energy System (HRES). This paper presents the modelling and future challenges of the HRES.

scholarly journals Techno-Economic Study for Hybrid Renewable Energy System for Coastal Residential Application in Pekan, Pahang

2018 ◽  
Vol 5 (1) ◽  
pp. 72-80
Author(s):  
Roziah Zailan ◽  
Siti Nurzalikha Zaini ◽  
Muhammad Ikram Mohd Rashid ◽  
A.A Razak
Keyword(s):  
Renewable Energy ◽  
Low Cost ◽  
Minimum Cost ◽  
Energy System ◽  
Economic Study ◽  
Diesel Generator ◽  
Generator System ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
Hybrid Optimization Model

Techno-economic study is needful to optimize the usage of renewable energy components that targeting low cost of electricity generation system. The selected case study area is coastal area in Pekan, Pahang, Malaysia. The autonomous system designed in this study is hybrid standalone PV-wind-diesel energy system to fulfil a 20.1 kWh/day demand for a coastal housing. Such power system was designed and optimized further to meet the power demand at a minimum cost of energy using energy optimization software, Hybrid Optimization Model for Electric Renewables (HOMER). The analysis was focused on the operational characteristics, economics and environmental. The standalone PV-wind-diesel energy system has total net present cost about $61, 911 with cost of energy $0.66/kWh. Apparently, the generation of electricity from both wind turbine and PV was inflated with the diesel generator system. From the payback period calculation, time taken to recover full capital invested through the installation of hybrid PV-wind-diesel is six years. Moreover, the installation of diesel generator should be optimizing in order to mitigate the environmental emissions

Alternative Analysis

2013 ◽  
pp. 28-54
Keyword(s):  
Renewable Energy ◽  
Energy System ◽  
End User ◽  
Case Scenario ◽  
Alternative Analysis ◽  
Worst Case ◽  
Renewable Energy System ◽  
Industrial Setting ◽  
The Cost ◽  
Electric Source

The point of reference of an exceptional design in a system is the lack of a crisis. Electricity is expected to flow effortlessly with the flick of a light switch in a home or industrial setting. The equipment behind the switch – the generators providing the electric source – is meaningless to the end-user. It is designed well and only noticeable in a crisis (blackout as a worst case scenario). However, when the renewable energy technology is incorporated in the present infrastructure, it ought not to create additional problems in the electrical footprints. The cost-effectiveness of the renewable generation must provide substantial eco-friendly benefits to justify the capital expenditures. Only when the renewable energy system is designed well and seamlessly integrated in the grid to minimize the fossil-fuel dependency, the potential crisis will be averted.

scholarly journals A preliminary stochastic analysis of the uncertainty of natural processes related to renewable energy resources

2018 ◽  
Vol 45 ◽  
pp. 193-199
Author(s):  
Elli Klousakou ◽  
Maria Chalakatevaki ◽  
Panayiotis Dimitriadis ◽  
Theano Iliopoulou ◽  
Romanos Ioannidis ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Stochastic Analysis ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Energy System ◽  
Energy Resources ◽  
Hurst Parameter ◽  
Renewable Energy Resources ◽  
Hybrid Renewable Energy System ◽  
Geophysical Processes

Abstract. The ever-increasing energy demand has led to overexploitation of fossil fuels deposits, while renewables offer a viable alternative. Since renewable energy resources derive from phenomena related to either atmospheric or geophysical processes, unpredictability is inherent to renewable energy systems. An innovative and simple stochastic tool, the climacogram, was chosen to explore the degree of unpredictability. By applying the climacogram across the related timeseries and spatial-series it was feasible to identify the degree of unpredictability in each process through the Hurst parameter, an index that quantifies the level of uncertainty. All examined processes display a Hurst parameter larger than 0.5, indicating increased uncertainty on the long term. This implies that only through stochastic analysis may renewable energy resources be reliably manageable and cost efficient. In this context, a pilot application of a hybrid renewable energy system in the Greek island of Astypalaia is discussed, for which we show how the uncertainty (in terms of variability) of the input hydrometeorological processes alters the uncertainty of the output energy values.

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