scholarly journals Planning and Scheduling Process for a Grid-Connected Microgrid Based on Renewable Energy Sources by a Novel Fuzzy Method

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Zhao Lijun ◽  
Li Qingsheng ◽  
Ding Guanhua
Keyword(s):  
Renewable Energy ◽  
Renewable Resources ◽  
Renewable Energy Sources ◽  
High Growth ◽  
Test System ◽  
Energy Sources ◽  
Uncertain Parameters ◽  
Planning And Scheduling ◽  
Power Sources ◽  
Maximum Capacity

High growth of the population and developed industries, on the one hand, increased the demanded energy considerably. Growth of the fossil fuel-based power generation, on the other hand, has high environmental effects. Accordingly, renewable energy sources are mainly interested in the recent years as clean resources. These sources also can be economical cases in long term. Nevertheless, their intermittent feature is a main drawback. Integration of these resources with the rest of the grid can increase their advantages and tackle their main drawbacks. In the present work, a novel programming method is proposed for energy management and optimization of operational expenses over a grid-connected microgrid (MG). The considered MG contains various renewable resources. Some uncertainties should be considered in the integration of renewable resources with the grid, which can affect the system performance. Main uncertain parameters are studied in this paper such as predicted values for green power sources, maximum capacity for fuel cells (FCs), energy storage sources (ESSs), maximum capacity for transmission line, and also hourly loads, achieving a higher efficiency. This paper utilized fuzzy idea for presentation of mentioned uncertain parameters in the MG. Moreover, this work employed a 3-stage optimization algorithm for obtaining the best programming for the MG by considering the uncertain parameters. This paper also used a practical test system to validate the proposed method through minimizing the total cost. Additionally, a sensitivity analysis is performed to study the effects of oscillations of all components in the MG and their associated uncertainties over the obtained results.

scholarly journals Potential of Utilization of Renewable Energy Technologies in Gulf Countries

2021 ◽  
Vol 13 (18) ◽  
pp. 10261
Author(s):  
J. Sadhik Basha ◽  
Tahereh Jafary ◽  
Ranjit Vasudevan ◽  
Jahanzeb Khan Bahadur ◽  
Muna Al Ajmi ◽  
...  
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
United Arab Emirates ◽  
Renewable Energy Sources ◽  
Gas Production ◽  
Energy Sources ◽  
Nonrenewable Resource ◽  
Gulf Region ◽  
Renewable Sources ◽  
Power Sources

This critical review report highlights the enormous potentiality and availability of renewable energy sources in the Gulf region. The earth suffers from extreme air pollution, climate changes, and extreme problems due to the enormous usage of underground carbon resources applications materialized in industrial, transport, and domestic sectors. The countries under Gulf Cooperation Council, i.e., Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates, mainly explore those underground carbon resources for crude oil extraction and natural gas production. As a nonrenewable resource, these are bound to be exhausted in the near future. Hence, this review discusses the importance and feasibility of renewable sources in the Gulf region to persuade the scientific community to launch and explore renewable sources to obtain the maximum benefit in electric power generation. In most parts of the Gulf region, solar and wind energy sources are abundantly available. However, attempts to harness those resources are very limited. Furthermore, in this review report, innovative areas of advanced research (such as bioenergy, biomass) were proposed for the Gulf region to extract those resources at a higher magnitude to generate surplus power generation. Overall, this report clearly depicts the current scenario, current power demand, currently installed capacities, and the future strategies of power production from renewable power sources (viz., solar, wind, tidal, biomass, and bioenergy) in each and every part of the Gulf region.

scholarly journals The use of renewable resources is an opportunity and an obligation

2014 ◽  
pp. 13-17
Author(s):  
Zoltán Balla
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Renewable Resources ◽  
Energy Production ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Rational Utilization ◽  
Security Of Supply ◽  
Harmful Substances

The renewable energy sources could be used in energy production, while no or only very slightly emit harmful substances to the environment. The solar, wind, hydropower, biomass and heat rational utilization of land contributes to greenhouse gas emissions.Renewable energy sources also reduces the dependence on fossil fuels, thus contributing to increase security of supply. The creation of local jobs to strengthen the area's population retaining ability.

scholarly journals Atjaunojamo energoresursu tiesiskuma nodrošinājums

2015 ◽  
Vol 1 (1) ◽  
pp. 55-63
Author(s):  
Kristīne Šeļepova
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Electricity Market ◽  
Renewable Resources ◽  
Renewable Energy Sources ◽  
Cost Effective ◽  
Energy Industry ◽  
Energy Sources ◽  
Power Base ◽  
Investment Priority

Raksta mērķis ir apzināt atjaunojamo energoresursu tiesisko regulējumu, tā atbalsta shēmas un problemātiku. Raksta autore skaidro, vai šo tiesību aizsardzības līmenis ir pietiekams, vai ir pieņemtas nepieciešamās materiālo tiesību normas, kā arī vai ir pietiekoši tiesiskie līdzekļi, kas nodrošina šo tiesību aizsardzības ievērošanu, kā arī nākamos soļus energoresursu liberalizācijas posmos. Use of renewable energy increases independence from imported energy, reduces greenhouse gas emissions, as well as increases security of energy supply. However, energy industry concedes that power becomes more vulnerable because of historical paradigms; independent power base is replaced with production from renewable energy sources. This is due to subsidies in the investment priority being cost-effective renewable resources projects. Thus, it is necessary to develop a solution defining how volatile and unpredictable renewable energy sources integrated into the European electricity market can be, while ensuring safe and uninterrupted power supply.

scholarly journals The Global Survey of the Electrical Energy Distribution System: A Review

2019 ◽  
Vol 9 (4) ◽  
pp. 2247 ◽  
Author(s):  
Archana Sudhakar Talhar ◽  
Sanjay B. Bodkhe
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Electrical Energy ◽  
Clean Energy ◽  
Central Intelligence Agency ◽  
Energy Sources ◽  
Power Sources ◽  
Energy Scenario ◽  
The World

This paper gives a review of energy scenario in India and other countries. Today’s demand of the world is to minimize greenhouse gas emissions, during the production of electricity. Henceforth over the world, the production of electrical power is changing by introducing abundantly available renewable energy sources like sun and wind. But, because of the intermittent nature of sustainable power sources, the electrical power network faces many problems, during the transmission and distribution of electricity. For resolving these issues, Electrical Energy Storage (EES) is acknowledged as supporting technology. This paper discusses about the world electrical energy scenario with top renowned developed countries in power generation and consumption. Contribution of traditional power sources changed after the introduction of renewable energy sources like sun and wind. Worldwide Agencies are formed like International Energy Agency (IEA), The Central Intelligence Agency, (CIS) etc. The main aim of these agencies is to provide reliable, affordable and clean energy. This paper will discuss about the regulatory authority and government policies/incentives taken by different countries.  At the end of this paper, author focuses on obstacles in implementation, development and benefits of renewable energy.

scholarly journals Engie: Business Model Transformation

2020 ◽  
Vol 9 (2) ◽  
pp. 152-167
Author(s):  
Jorge Hernando Cuñado ◽  
Jorge Colvin Díez ◽  
Javier Antonio Enríquez Román
Keyword(s):  
Renewable Energy ◽  
Business Model ◽  
Model Transformation ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Business Environment ◽  
Energy Sources ◽  
Power Sources ◽  
Energy Company ◽  
New Strategy

This article reviews the business model transformation of a French energy company, Engie. The company is adapting to a new energy business environment characterized by three trends: decarbonisation, decentralisation and digitalization. In order to achieve this objective Engie has carried out a three-year plan (2016-2019) focusing on renewable energy sources, local energy generation and new technologies. The company has developed a new strategy for the period 2019-2021, the aim is to become the world leader in zero-carbon transition “as a service” assisting business and local authorities to reduce their carbon footprint in their operations. This implies an asset light strategy, Engie provides tailor-made solutions and expertise to their customers while partnering with the owners of renewable power sources. The company is in line with the environmental concerns of all its stakeholders and believes in the profitability of this new strategy, centred on renewable energy sources.

scholarly journals Comparative techno-economic analysis of power system with and without renewable energy sources

2021 ◽  
Vol 24 (3) ◽  
pp. 1260
Author(s):  
Hephzibah Jose Queen ◽  
Jayakumar J. ◽  
Deepika T. J.
Keyword(s):  
Renewable Energy ◽  
Economic Analysis ◽  
Renewable Energy Sources ◽  
Technical Analysis ◽  
Test System ◽  
Energy Sources ◽  
Electric Grid ◽  
Test Systems ◽  
The Stability ◽  
Modified Test

<p>The primary aim of this work is to feature the advantages of integrating natural source of energy from the solar and wind to the prevailing electric power systems. Two types of analysis are carried out in two test systems (standard and modified test systems) and the outcome of the test systems are compared. The two analyses are technical analysis and economic analysis. The stability of the voltage is analyzed under technical analysis and the price of energy consumed from the electric grid is calculated and analyzed under the economic analysis. Dynamic hourly load data, hourly solar radiation, hourly wind velocity, and dynamic electricity prices are considered for the standard IEEE system and modified test system (with the integration of RES). Voltage stability index (L-Index) and price of the electricity consumed from electric grid are found for standard test system and the outcome is compared with the outcome of modified test systems. MATLAB coding is done for techno-economic analysis for both test systems. It is inferred from the outcome that the integration of renewable energy sources fairly contributes to the economic benefit of the system by lowering the power purchased from the grid and enhance the stability of the system.</p>

scholarly journals Toward the Optimal Operation of Hybrid Renewable Energy Resources in Microgrids

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5482
Author(s):  
Shabir Ahmad ◽  
Israr Ullah ◽  
Faisal Jamil ◽  
DoHyeun Kim
Keyword(s):  
Renewable Energy ◽  
Objective Function ◽  
Renewable Resources ◽  
Renewable Energy Sources ◽  
Pso Algorithm ◽  
Optimal Operation ◽  
Energy Resources ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Cost Efficient

Renewable energy sources are environmentally friendly and cost-efficient. However, the problem with these renewable resources is their heavy reliance on weather conditions. Thus, at times, these solutions are not guaranteed to meet the required demand all the time. For this, hybrid microgrids are introduced, which have a combination of both renewable energy sources and non-renewable energy resources. In this paper, a cost-efficient optimization algorithm is proposed that minimizes the use of non-renewable energy sources. It maximizes the use of renewable energy resources by meeting the demand for utility grids. Real data based on the load and demand of the utility grids in Italy is used, and a system that determines the optimal sizing of the microgrid and a daily plan is introduced to optimize the renewable resources operations. As part of the proposal, the objective function for the operation and planning of the microgrid in such a way to minimize cost is formulated. Moreover, a variant of the PSO algorithm named recurrent PSO is implemented. The recurrent PSO algorithm solves the proposed optimization objective function by minimizing the cost for the installation and working of the microgrid. Afterwards, the energy management system algorithm lays out a plan for the daily operation of the microgrid. The performance of the system is evaluated using different state-of-the-art optimization methods. The proposed work can help minimize the use of diesel generators, which not only saves financial resources but also contributes toward a green environment.

Integration Strategies, Challenges, and Merits of Renewable Resources in Electric Vehicles

2021 ◽  
pp. 75-103
Author(s):  
Sudhakar Hallur ◽  
Roopa Kulkarni ◽  
Prashant P. Patavardhan ◽  
Vishweshkumar Aithal
Keyword(s):  
Renewable Energy ◽  
General Population ◽  
Greenhouse Gas ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Power Sources ◽  
Electrical Vehicles ◽  
Integration Strategies ◽  
Sustainable Power

A non-sustainable wellspring of energy is for the most part non-plentiful in nature and can be utilized until they exist in plenitude. As and when the acknowledgment of the decrease of the bountiful assets and natural risks hit, an auxiliary idea of use of non-pollutable-sustainable power sources shows up into place. Different vulnerabilities as for the plan and supplies of a vehicle emerge with less or weakened association of the sustainable assets. A few vulnerabilities will emerge from the capital venture part and extents from the general population and private segments. Another challenge is the contribution of the innovation to travel the flow ordinary vehicles to electrical vehicles (EV) and to coordinate the renewable energy sources (RES), for example, wind-vitality, sunlight-based photovoltaics, and differing assortments of bio-energies to constantly work according to the prerequisite to reduce greenhouse gas (GHG). This chapter deals with the integration and charging challenges and strategies, coordination of vehicles, demand integration, and solutions to them.

scholarly journals Slime Mold Algorithm for Optimal Reactive Power Dispatch Combining with Renewable Energy Sources

2021 ◽  
Vol 13 (11) ◽  
pp. 5831
Author(s):  
Salah K. ElSayed ◽  
Ehab E. Elattar
Keyword(s):  
Renewable Energy ◽  
Objective Function ◽  
Reactive Power ◽  
Renewable Energy Sources ◽  
Test System ◽  
Slime Mold ◽  
Optimization Techniques ◽  
Energy Sources ◽  
Optimal Reactive Power Dispatch ◽  
Reactive Power Dispatch

The optimal reactive power dispatch (ORPD) is a complex, nonlinear, and constrained optimization problem. This paper presents the application of a new metaheuristic optimization technique called the slime mold algorithm (SMA) for solving the developed objective function of ORPD combining with renewable energy sources. The presented objective function is to minimize the total operating cost of the system through the minimization of all reactive power costs, total real power loss, voltage deviation of load buses, the system overload and improve voltage stability. The formulation of the ORPD problem combining with renewable energy sources with five different objective functions is then converted to a coefficient single objective function achieving various operating constraints. The SMA technique has been tested and proven on the IEEE 30-bus system and IEEE-118 bus system using different scenarios. Five different scenarios, with and without renewable energy sources, are presented on the two-test system and the simulation results of the SMA is compared to some optimization techniques from the literature under the same test system data, optimal control variables, and operational constraints. The superiority and effectiveness of the SMA are proven through comparison with the other obtained results from recently published optimization techniques.

scholarly journals Electric utility on the basis of renewable energy sources at realisation of “Smart city” concept

2019 ◽  
Vol 97 ◽  
pp. 01009
Author(s):  
Svetlana Shilkina
Keyword(s):  
Renewable Energy ◽  
Diesel Fuel ◽  
Smart City ◽  
Renewable Energy Sources ◽  
Economic Effect ◽  
Electric Utility ◽  
Energy Sources ◽  
Residential Areas ◽  
Resource Saving ◽  
Power Sources

Realisation of “Smart city” concept is connected with introduction of activities as to increase in energy efficiency and resource saving in the area of electric utility industry, including for the account of applying renewable energy sources (RES). Introduction of concept elements is economically justified not only in big megapolises, but in minor residential areas, as well. Notwithstanding the growth in power production with the employment of sun and wind technologies, the share of RES-based power generating plants in Russia, remains inconsiderable and amounts to approximately 0.1% of the total registered output of country’s power sources. Development of this perspective sphere is mainly carried out in those Russian regions where diesel fuel is used at very high potential capacities of the sun and wind power. Projects as to RES development in Russia are economically substantiated for isolated power-engineering systems, their introduction allows to cut consumption rate of expensive diesel fuel which is environmentally unfriendly. The estimates as referred herein, evidence a necessity to substitute elements of power-generating equipment of diesel-powered plants with solar-power farms. Development of renewable energy-generating industry in the country must be facilitated, by accelerated introduction of this resource in the regions with autonomous power-supply, where RES provides a fairly good economic effect.

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