scholarly journals Investigation of solar-powered drip irrigation: The case study of the Jordan Valley 

2017 ◽  
Vol 63 (No. 4) ◽  
pp. 168-171
Author(s):  
Perakis Christoforos ◽  
Kyriakarakos George ◽  
Hani Nabeel Bani ◽  
Hammad Shaker ◽  
Damasiotis Markos
Keyword(s):  
Drip Irrigation ◽  
Energy System ◽  
Electricity Production ◽  
Diesel Generator ◽  
Jordan Valley ◽  
Battery System ◽  
Electrical Grid ◽  
Solar Powered ◽  
The Cost

Agriculture is the sector that consumes by far most water globally. Much research efforts aim at minimizing losses through the use of drip irrigation. Rural agricultural areas often do not have access to a main electrical grid to power the pumps needed for drip irrigation; it reduces the options in paying for a grid extension, getting a diesel generator or investing in an off-grid renewable energy system. In this paper, these alternatives are assessed technically and economically under real world conditions through the Jordan Valley case study. The results show that the autonomous photovoltaic (PV)-battery system is preferable to the use of a diesel generator, as well as it is preferable to the main grid extension in many cases depending on the cost of grid electricity and distance from the grid. For current subsidized grid electricity retail price to farmers, the PV-battery system becomes more attractive above a 300 m distance from the grid, while if the actual cost of electricity production in Jordan is taken into account, then it breaks even to 128 m. 

scholarly journals Accessibility and Sustainability of Hybrid Energy Systems for a Cement Factory in Oman

2020 ◽  
Vol 13 (1) ◽  
pp. 93
Author(s):  
Wesam H. Beitelmal ◽  
Paul C. Okonkwo ◽  
Fadhil Al Housni ◽  
Wael Alruqi ◽  
Omar Alruwaythi
Keyword(s):  
Functional Limitations ◽  
Energy Systems ◽  
Energy System ◽  
Electricity Production ◽  
Diesel Generator ◽  
Hybrid Energy ◽  
Electric System ◽  
Cement Factory ◽  
Hybrid Energy Systems ◽  
Cost Of Energy

Diesel generators are being used as a source of electricity in different parts of the world. Because of the significant expense in diesels cost and the requirement for a greener domain, such electric generating systems appear not to be efficient and environmentally friendly and should be tended to. This paper explores the attainability of utilizing a sustainable power source based on a cross-breed electric system in the cement factory in Salalah, Oman. The HOMER software that breaks down the system setup was utilized to examine the application and functional limitations of each hybridized plan. The result showed that a renewable-energy (RE)-based system has a lower cost of energy (COE) and net present cost (NPC) compared to diesel generator-based hybrid electric and standalone systems. Although the two pure renewable hybrid energy systems considered in this study displayed evidence of no emissions, lower NPC and COE values are observed in the photovoltaic/battery (PV/B) hybrid energy system compared with photovoltaic/wind turbine/battery (PV/WT/B). The PV/WT/B and PV/B systems have higher electricity production and low NPC and COE values. Moreover, the PV/B has the highest return on investment (ROI) and internal rate of return (IRR), making the system the most economically viable and adjudged to be a better candidate for rural community electrification demands.

scholarly journals Optimal Design of Hybrid PV-Diesel - Battery System for a Small Cement Brick Factory: A Case Study for Bahteem, Egypt

2021 ◽  
Vol 15 ◽  
pp. 1-7
Author(s):  
Hanaa M. Farghally ◽  
Ninet M. Ahmed ◽  
Faten H. Fahmy ◽  
Emad A. Sweelem ◽  
Amal A. Hassan
Keyword(s):  
Diesel Generator ◽  
Battery System ◽  
Renewable Power ◽  
Greenhouse Gases Emissions ◽  
Load Demand ◽  
Power Part ◽  
Hybrid Configuration ◽  
Pv Penetration ◽  
The Impact

This paper study the optimization & finical test of a hybrid power system holds Photovoltaic (PV) array, Diesel generator and Battery for a small cement bricks factory located in Bahtem, Egypt covering a load demand of 24.5kWh/day with a 4.92 kW peak. In this factory, light weight binder bricks are manufactured from the recycling of chopped grind straw which can be utilized as fillers in bone type buildings. HOMER software is utilized to run the frugal feasibility of hybrid PV-Diesel-Battery system. The study proved that the impact of PV penetration and battery storage on power production, expense of power, number of operational hours of diesel generators for a given hybrid configuration. PV panels and diesel generator produce 10,654 and 2,701 kWh/year, respectively and 2,783 kWh/year of power is stocked in the batteries. The renewable power part was 70%. The system was optimally sized with a PV of 7 kW, a diesel generator of 5.5 kW, a converter of 4.9 kW and 8 units of battery The obtained results showed that PV-Diesel-Battery system generates a great reduction in both the operating expenses the amount of CO2 and other greenhouse gases emissions.

Model Predictive Control of Wind-Photovoltaic Hybrid System Connected to Grid

2017 ◽  
Vol 6 (3) ◽  
pp. 216
Author(s):  
Houda Abidi ◽  
Abdelkader Mami
Keyword(s):  
Predictive Control ◽  
Hybrid System ◽  
Energy System ◽  
Reference Tracking ◽  
Control Approach ◽  
Hybrid Energy ◽  
Electrical Grid ◽  
Parameter Variations ◽  
Predicted Values ◽  
The Cost

<span>This work focuses on Model based Predictive Control (MPC) for photovoltaic-wind hybrid energy system connected to electrical grid. Several benefits  are offered by this method  such as robustness against a  parameter variations, minimum output current distortion and excellent reference tracking. In order to minimize the cost function or the error between the  predicted values and their references, MPC-based algorithm permit to select and apply the  optimal voltage vector. Simulation results under Psim environment show a fast dynamic behavior of hybrid system with minimal errors, accuracy and usefulness of the considered control approach.</span>

scholarly journals Size optimization of a hybrid PV/wind/diesel/battery power system for reverse osmosis desalination

2019 ◽  
Vol 9 (4) ◽  
pp. 405-422 ◽  
Author(s):  
Daming Xu ◽  
Tom Acker ◽  
Xuhui Zhang
Keyword(s):  
Reverse Osmosis ◽  
Optimal Solution ◽  
Energy System ◽  
Optimal Configuration ◽  
Nonlinear Integer Programming ◽  
Sensitivity Analyses ◽  
Diesel Generator ◽  
Battery System ◽  
Photovoltaic Panel ◽  
Levelized Cost

Abstract This study was to find the optimal configuration for an independent renewable energy system for reverse osmosis (RO) desalination. The objective was to find the lowest levelized cost of energy (LCOE), with power reliability as the constraint. A genetic algorithm was used to solve the nonlinear integer programming program. A site with brackish groundwater in Arizona, USA was selected. The capacity of the RO system was 18.93 m3/d (5,000 gal/d), requiring a constant power consumption of 3.95 kW. Two scenarios were considered in terms of diesel generator (DG) allowed running time. The results showed that the optimal configuration was a hybrid photovoltaic/wind/diesel/battery system with 0.56 USD/kWh and the corresponding levelized cost of water 3.84 USD/m3, when the DG can run in any hour every day. The optimal solution was a hybrid wind/photovoltaic/battery system with 0.69 USD/kWh and 4.48 USD/m3, when the DG can run between 9 am and 9 pm every day for noise control. Both the two LCOWs were about half of the 7.9 USD/m3 currently paid by residents that live in the area. Sensitivity analyses showed the LCOE was fairly insensitive to photovoltaic panel tilt angle over a range for both the two configurations.

Coordinated Control of Energy Storage System and Diesel Generator in Isolated Power System

2011 ◽  
Vol 12 (1) ◽  
Author(s):  
Tomonori Goya ◽  
Kosuke Uchida ◽  
Yoshihisa Kinjyo ◽  
Tomonobu Senjyu ◽  
Atsushi Yona ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Control System ◽  
Energy Storage ◽  
Storage System ◽  
Coordinated Control ◽  
Energy System ◽  
Energy Storage System ◽  
Diesel Generator ◽  
Battery System ◽  
Renewable Energy System

Nowadays, renewable energy systems such as wind turbine generators and photovoltaic systems are introduced to power systems. However, the renewable energy system is influenced by weather conditions, and the generated power of the renewable energy system is deviated. For the provision of deviated power, the battery energy storage system is introduced to suppress the deviation of the frequency and voltage in power system. However, it needs the large capacity of a battery system, which increases the capital cost. In this paper, we propose a coordinated control strategy between the diesel generator and the battery system to reduce the capital cost of battery, inverter capacity and storage capacity. The proposed control system incorporates the H-infinity control theory, which enables intuitive controller design in frequency domain. Effectiveness of the proposed control system is validated by simulation results.

Energy visibility of a modeled photovoltaic/diesel generator set connected to the grid

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Majid K. Abbas ◽  
Qusay Hassan ◽  
Marek Jaszczur ◽  
Zuhair S. Al-Sagar ◽  
Ali N. Hussain ◽  
...  
Keyword(s):  
Rural Areas ◽  
Solar Irradiance ◽  
Energy System ◽  
Photovoltaic System ◽  
Weather Data ◽  
Economic Optimization ◽  
Diesel Generator ◽  
Time Step ◽  
Cost Of Energy ◽  
The Cost

Abstract The paper presents a technical and economic analysis for two energy systems (conventional and renewable) with grid connection. The investigation was carried out using an experimental measurement for the desired load and weather data (solar irradiance and ambient temperature), were 5.1 kWh the daily energy consumption as measured and 4.6 kWh/m2/day the annual average of the solar irradiance. The simulation process was done by using MATLAB and HOMER software at a 1 min time step resolution. The economic optimization objective presented for two energy system scenarios (i) photovoltaic/grid and (ii) diesel/grid, takes into account the economic aspects and component prices based on the Iraqi market and regulations. The diesel generator, very popular in rural areas, is designed to work during the same period as the photovoltaic system (only during day hours). The yearly operating hours were recorded at 4380 h/year, and energy generation was approx. 2349 kWh/year while fuel consumption was 1826 L/year. The results showed that the photovoltaic system in scenario (i) can generate about 7895 kWh, and for the diesel generator in scenario (ii), it can generate approximately 2346 kWh. Furthermore, for scenario (i) the levelized net present cost is $1079 and the cost of energy is about $0.035/kWh, while for scenario (ii) the levelized net present cost is $12,287 and the cost of energy is $0.598/kWh. The use of solar energy is highly recommended compared to diesel generators due to the lowest cost and delivery of energy to the grid. Furthermore, it can capture carbon dioxide by about 5295 kg/year.

scholarly journals Analyzing the Off-Grid Performance of the Hybrid Photovoltaic/Diesel Energy System for a Peripheral Village

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Ahmed I. M. Iskanderani ◽  
Ibrahim M. Mehedi ◽  
Makbul A. M. Ramli ◽  
Md. Rafiqul Islam
Keyword(s):  
Renewable Energy ◽  
Optimal Solution ◽  
Energy System ◽  
Rural Electrification ◽  
Diesel Generator ◽  
Rural Villages ◽  
Technoeconomic Analysis ◽  
Electricity Cost ◽  
Viable Solution ◽  
The Cost

Grid extension from the distribution network is being used to meet the demand for rural electricity all over the world. Due to the extra cost of extending electric lines to rural villages, it is not feasible as the installing and commissioning costs are directly related to several constraints such as distance from the main grid, the land location, utilities to be used, and the size of the approximate load. Consequently, it becomes a challenge to apply technoeconomic strategies for rural electrification. Therefore, considering the above issues of rural electrification through grid power, the renewable energy system can be an attractive solution. This research analyzes different types of loads considering domestic, industrial, and agricultural requirements for a remote village in a developing country like Bangladesh. In this paper, four types of demand scenarios are developed considering the income level of inhabitants of the village. The investigation identifies the optimal scope for renewable energy-based electrification and provides a suitable technoeconomic analysis with the help of HOMER software. The obtained results show that a combined architecture containing solar panel, diesel generator, and battery power is a viable solution and economically beneficial. The optimal configuration suggested for the primary scenario consists of 25 kW diesel generators to fulfill the basic demand. The hybrid PV-diesel-battery system becomes the optimal solution while the demand restriction is removed for secondary, tertiary, and full-option scenarios. Commercial and productive loads are considered in the load profile for these three scenarios of supply. For the primary scenario of supply, the electricity cost remains high as $0.449/kWh. On the other hand, the lowest electricity cost ($0.30/kWh) is obtained for the secondary scenario. Although the suggested optimal PV-diesel-battery might not reduce the cost of electricity (COE) and NPC significantly, it is capable to reduce dependency on diesel utilization. Hence, the emission of carbon is reduced due to less utilization of diesel that helps to minimize the greenhouse effect on the environment.

scholarly journals Case Study of a Hybrid Wind and Tidal Turbines System with a Microgrid for Power Supply to a Remote Off-Grid Community in New Zealand

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3636
Author(s):  
Navid Majdi Nasab ◽  
Jeff Kilby ◽  
Leila Bakhtiaryfard
Keyword(s):  
New Zealand ◽  
Power Supply ◽  
Electricity Generation ◽  
Tidal Energy ◽  
Coastal Communities ◽  
Diesel Generator ◽  
Tidal Turbines ◽  
Local Residents ◽  
The Cost

This paper evaluates the feasibility of using a hybrid system consisting of wind and tidal turbines connected to a microgrid for power supply to coastal communities that are isolated from a main supply grid. The case study is Stewart Island, where the cost of electricity, provided by a central diesel power station, is higher than the grid network in New Zealand. Local residents believe that reducing the consumption of diesel and having a renewable source of electricity generation are two of the island’s highest priorities. Merging a tidal energy source (predictable) with wind (unpredictable) and diesel (back-up), through a microgrid, may be a way to increase reliability and decrease the cost of generation. Several off-grid configurations are simulated using HOMER and WRPLOT software. Using two wind and four tidal turbines, plus one diesel generator for back-up, is the best design in terms of lower greenhouse gas emissions, higher renewable fraction, and reduced net present cost.

scholarly journals Introduction to wind energy systems(*)

2020 ◽  
Vol 246 ◽  
pp. 00004
Author(s):  
Hermann-Josef Wagner
Keyword(s):  
Wind Energy ◽  
Energy Use ◽  
Energy Systems ◽  
Electricity Production ◽  
Critical Parameters ◽  
Electrical Grid ◽  
The World ◽  
Basic Concepts ◽  
The Cost ◽  
Wind Energy Systems

This article presents the basic concepts of wind energy and deals with the physics and mechanics of operation. It describes the conversion of wind energy into rotation of turbine, and the critical parameters governing the efficiency of this conversion. After that it presents an overview of various parts and components of windmills. The connection to the electrical grid, the world status of wind energy use for electricity production, the cost situation and research and development needs are further aspects which will be considered.

Sign in / Sign up

Export Citation Format

Share Document