scholarly journals Impact of electromobility development on the electricity market

2021 ◽  
Vol 5 (1) ◽  
pp. 53-58
Author(s):  
Mikołaj Kołtonowski ◽  
Remigiusz Kołtonowski ◽  
Stanisław Pałubicki
Keyword(s):  
Electricity Market ◽  
Energy Demand ◽  
Electricity Distribution ◽  
Current State ◽  
It Systems

The article describes the forecasts and the current state of electromobility in Poland. Attention was drawn to the significant problems faced by the electricity market as a result of adapting infrastructure for electromobility and growing energy demand. IT systems supporting electromobility were presented. The activities undertaken by Energa Operator for the development of electromobility in the area of electricity distribution of this company have also been presented.

Energy Management System for Hybrid Microgrids

2021 ◽  
Vol 69 (2) ◽  
pp. 21-30
Author(s):  
Nasreddine ATTOU ◽  
Sid-Ahmed ZIDI ◽  
Mohamed KHATIR ◽  
Samir HADJERI
Keyword(s):  
Energy Management ◽  
Electricity Market ◽  
Management System ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Energy Sources ◽  
Variable Load ◽  
Energy Management System ◽  
Price Variation

Energy management in grid-connected Micro-grids (MG) has undergone rapid evolution in recent times due to several factors such as environmental issues, increasing energy demand and the opening of the electricity market. The Energy Management System (EMS) allows the optimal scheduling of energy resources and energy storage systems in MG in order to maintain the balance between supply and demand at low cost. The aim is to minimize peaks and fluctuations in the load and production profile on the one hand, and, on the other hand, to make the most of renewable energy sources and energy exchanges with the utility grid. In this paper, our attention has been focused on a Rule-based energy management system (RB EMS) applied to a residential multi-source grid-connected MG. A Microgrid model has been implemented that combines distributed energy sources (PV, WT, BESS), a number of EVs equipped with the Vehicle to Grid technology (V2G) and variable load. Different operational scenarios were developed to see the behaviour of the implemented management system during the day, including the random demand profile of EV users, the variation in load and production, grid electricity price variation. The simulation results presented in this paper demonstrate the efficacy of the suggested EMS and confirm the strategy's feasibility as well as its ability to properly share power among different sources, loads and vehicles by obeying constraints on each element.

scholarly journals Sustainable Electric Vehicle Transportation

2021 ◽  
Vol 13 (22) ◽  
pp. 12379
Author(s):  
Raymond Kene ◽  
Thomas Olwal ◽  
Barend J. van Wyk
Keyword(s):  
Electric Vehicle ◽  
Energy Demand ◽  
Large Scale ◽  
Common Knowledge ◽  
Distribution Network ◽  
Electricity Grid ◽  
Current State ◽  
The World ◽  
The Impact ◽  
Ev Charging

The future direction of electric vehicle (EV) transportation in relation to the energy demand for charging EVs needs a more sustainable roadmap, compared to the current reliance on the centralised electricity grid system. It is common knowledge that the current state of electricity grids in the biggest economies of the world today suffer a perennial problem of power losses; and were not designed for the uptake and integration of the growing number of large-scale EV charging power demands from the grids. To promote sustainable EV transportation, this study aims to review the current state of research and development around this field. This study is significant to the effect that it accomplishes four major objectives. (1) First, the implication of large-scale EV integration to the electricity grid is assessed by looking at the impact on the distribution network. (2) Secondly, it provides energy management strategies for optimizing plug-in EVs load demand on the electricity distribution network. (3) It provides a clear direction and an overview on sustainable EV charging infrastructure, which is highlighted as one of the key factors that enables the promotion and sustainability of the EV market and transportation sector, re-engineered to support the United Nations Climate Change Agenda. Finally, a conclusion is made with some policy recommendations provided for the promotion of the electric vehicle market and widespread adoption in any economy of the world.

scholarly journals Mexico’s energy reform: experience and lessons of the energy sector transformation in South America

2018 ◽  
Vol 26 (4) ◽  
pp. 609-619
Author(s):  
Elvis Ojeda Kalluni ◽  
Elmira A Chadaeva
Keyword(s):  
South America ◽  
Energy Security ◽  
Energy Demand ◽  
Energy Sector ◽  
Important Place ◽  
Safe Delivery ◽  
Energy Complex ◽  
Current State ◽  
History Of ◽  
Energy Reform

The study of fuel and energy complex of Mexico occupies a very important place in the world’s leading research centers. Among Russian and foreign studies there are a number of works that consider the problems and peculiarities of fuel and energy complex of the countries of Latin America including Mexico. This article is devoted to the analysis of Mexico’s energy reform and use their experiences to transform the energy sector of the countries of South America. Presents the history of the Mexican energy reform. Discusses basic principles of energy reform and energy security of the country. It also examines the factors that Mexico should include in its energy policy and management system to ensure the safe delivery of energy across the country. Offers a brief overview of the current state of TEK of Mexico. Mexico has a large and varied potential for producing energy from renewable sources. With the recent opening of the energy sector, the country has the necessary conditions to attract major investments to develop projects on renewable energy. The liberalization of the sector allows Mexico to meet the growing energy demand and to diversify its productive matrix, creating at the same time as energy security and reduce greenhouse gases, positively affecting the environment. Reform of the energy sector of Mexico and the analysis of the sector in this country can be of great importance for the transformation of the energy sector in many countries of the region, especially in places such as Argentina, Brazil and Venezuela.

scholarly journals A New Vision on the Prosumers Energy Surplus Trading Considering Smart Peer-to-Peer Contracts

2020 ◽  
Author(s):  
Bogdan-Constantin Neagu ◽  
Ovidiu Ivanov ◽  
Gheorghe Grigoras ◽  
Mihai Gavrilas
Keyword(s):  
Electricity Market ◽  
Energy Demand ◽  
Low Voltage ◽  
Peer To Peer ◽  
Local Network ◽  
Financial Benefits ◽  
Daily Energy ◽  
New Vision ◽  
The Government ◽  
Energy Surplus

A growing number of households benefit from the government subsidies to install renewable generation facilities such as PV panels, used to gain independence from the grid and provide cheap energy. In the Romanian electricity market, these prosumers can sell their generation surplus only at regulated prices, back to the grid. A way to increase the number of prosumers is to allow them to make higher profit by selling this surplus back into the local network. This would also be an advantage for the consumers, who could pay less for electricity exempt from network tariffs and benefitting from lower prices resulting from the competition between prosumers. One way of enabling this type of trade is to use peer-to-peer contracts traded in local markets, run at microgrid (μG) level. This paper presents a new trading platform based on smart peer-to-peer (P2P) contracts for prosumers energy surplus trading in a real local microgrid. Several trading scenarios are proposed, which give the possibility to perform trading based on participants’ locations, instantaneous active power demand, maximum daily energy demand and the principle of first come first served implemented in an anonymous blockchain trading ledger. The developed scheme is tested on a low-voltage (LV) microgrid model to check its feasibility of deployment in a real network. A comparative analysis between the proposed scenarios, regarding traded quatities and financial benefits is performed.

Shaping Our Future With Sustainable Energy: A Direction From Young Engineers

2012 ◽  
Author(s):  
Jan Fabian Feldhoff ◽  
Carina Hofmann ◽  
Stefan Hübner ◽  
Jan Oliver Kammesheidt ◽  
Martin Kilbane ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Energy Demand ◽  
Power Plants ◽  
Sustainable Energy ◽  
Energy System ◽  
Local Context ◽  
Global Energy ◽  
Sustainable Energy System ◽  
The U.S

It is broadly accepted that current energy systems should become more sustainable in both a global and local context. However, setting common goals and shared objectives and determining the appropriate means by which to get there is the subject of heavy debate. Therefore, the American Society of Mechanical Engineers (ASME) and the German Association of Engineers (VDI) initiated a joint project aimed at providing a young engineers’ perspective to the global energy conversation. The young engineer project teams set a common goal of assembling a completely sustainable energy system for the U.S. and Germany by 2050. This includes not only the electricity market, but the overall energy system. Based on the current global energy paradigm, a completely sustainable energy system seems very ambitious. However, multiple analyses show that this path is possible and would in the medium to long run not only be desirable, but also competitive in the market. This future ‘energy puzzle’ consists of many important pieces, and the overall picture must be shaped by an overarching strategy of sustainability. Besides the many detailed pieces, four main critical issues must be addressed by engineers, politicians and everybody else alike. These challenges are: i) Rational use of energy: This uncomfortable topic is rather unappealing to communicate, but is a key issue to reduce energy demand and to meet the potentials of renewable energy carriers. ii) Balancing of electricity demand and generation: This is a challenge to the electricity markets and infrastructures that are currently designed for base-load, mainly fossil power plants. The overall mix of renewable energy generation, storage technologies, grid infrastructure, and power electronics will decide how efficient and reliable a future energy system will be. iii) Cost efficiency and competitiveness: It is a prerequisite for industrialized countries to stay competitive and to establish RE in the market. Developing economic technologies while at the same time establishing a strong RE market is the secret of success. iv) Acceptance of the system and its consequences: The best energy strategy cannot be realized without broad public acceptance for it. Therefore, the understanding of the energy technologies and an objective discussion must be promoted — without old fashioned emotionalizing of certain risks. The paper will present details on the four mentioned aspects, compare the situations between the U.S. and Germany, and propose solutions for appropriate political frame conditions to achieve a sustainable energy system.

scholarly journals Techniques for Ensuring Fault Ride-Through Capability of Grid Connected DFIG-Based Wind Turbine Systems: A Review

2021 ◽  
Vol 18 (1) ◽  
pp. 39-46
Author(s):  
M. Shuaibu ◽  
A.S. Abubakar ◽  
A.F. Shehu
Keyword(s):  
Renewable Energy ◽  
Wind Turbine ◽  
Electricity Market ◽  
Energy Demand ◽  
Reactive Power ◽  
Short Circuit ◽  
Renewable Energy Sources ◽  
Dynamic Performance ◽  
Energy Sources ◽  
Fault Ride Through

Renewable energy sources (RES) are being integrated to electrical grid to complement the conventional sources to meet up with global electrical energy demand. Among other RES, Wind Energy Conversion Systems (WECS) with Doubly Fed Induction Generator (DFIG) have gained global electricity market competitiveness because of the flexible regulation of active and reactive power, higher power quality, variable speed operation, four quadrant converter operation and better dynamic performance. Grid connected DFIG-based WECS are prone to disturbances in the network because of direct connection of stator windings to grid. The ability of the Wind Turbine (WT) to remain connected during grid faults is termed the Fault Ride-Through (FRT) capability. The grid code requirement for integrating the DFIG-based WTs to power networks specified that they must remain connected and support the grid stability during grid disturbances of up to 1500 ms. The use of compensation devices offers the best FRT compliance thereby protecting the DFIG and the converters from voltage fluctuations and over currents during the grid fault. The paper presents a review of techniques employed in ensuring FRT compliance. The article also proposes the state-of-the-art techniques for compensating voltage sag/swell and limiting the fault short-circuit current. Keywords: Renewable energy sources, DFIG, wind turbine system, fault ride-through, grid codes, dual-functional DVR

scholarly journals Renewable electricity in Western Balkans: Support policies and current state

2018 ◽  
Vol 22 (6 Part A) ◽  
pp. 2281-2296
Author(s):  
Nikola Rakic ◽  
Dusan Gordic ◽  
Vanja Sustersic ◽  
Mladen Josijevic ◽  
Milun Babic
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Electricity Generation ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Western Balkans ◽  
Renewable Electricity ◽  
Current State ◽  
Balkan Countries ◽  
The Impact

The use of renewable energy sources for electricity generation in the Western Balkan countries is analyzed in this review paper. Since those countries are part of EU or intend to be, data for Western Balkan are also compared with data for EU-28. The first part of the paper presents a brief overview of main promotion mechanism for electricity generation from renewable energy sources. As a dominant support policy, the feed-in tariff is more elaborated as an incentive measure and a de?tailed overview of the amount of tariffs and quotas for dominant technologies in the Western Balkan countries is presented. Furthermore, the current state of installed capacities and annual productions of three particular renewable electricity technologies (small hydro power, wind power, and solar photovoltaic) are analyzed in detailes. Based on presented data, there is a discussion and consideration of the impact of incentive measures on the electricity market and power production from renewable sources.

scholarly journals ADVANTAGES AND DISADVANTAGES OF THE CURRENT STATE OF ADMINISTRATIVE AND LEGAL REGULATION OF RELATIONS IN THE FIELD OF ELECTRICITY IN THE CONDITIONS OF UKRAINE'S EUROPEAN INTEGRATION

2020 ◽  
Vol 2 (4(106)) ◽  
pp. 123-129
Author(s):  
Д. А. Миколаєць
Keyword(s):  
Electricity Market ◽  
Energy Supply ◽  
Renewable Energy Sources ◽  
Legal Regulation ◽  
State Regulation ◽  
Electricity Sector ◽  
Local Networks ◽  
Advantages And Disadvantages ◽  
Current State ◽  
System Operator

The relevance of the article is that today, the use of electricity is an integral part of life and supports the normal implementation of the state social function, the function of protecting independence and territorial integrity. It is extremely important that the administrative and legal regulation of relations in the field of electricity meets modern socio-economic conditions, is independent of political factors and especially outside the legal and corrupt. The study of the current state of administrative and legal regulation of relations in the field of electricity will clarify the level of compliance and ways to improve the effectiveness of such regulation, its relevance. The article states that the distribution of electricity was not separated from the supply of electricity, which later led to the emergence of several energy supply companies in one area through the privatization of uncontrolled local networks, which were on the balance of enterprises in other industries (eg coal and metallurgy) , or through the alienation for debts of networks that were part of the regional energy supply company. In addition, methodological tools have been identified that determine the movement of the system of state regulation of the electricity sector. It is shown that in the conditions of the developed electricity market administrative-command management methods can be applied in fact only to state companies, in particular NEC "Ukrenergo" in terms of allocation of system operator and corporatization of the enterprise, which will transmit electricity through main and interstate networks. It is concluded that the current state of administrative and legal regulation of relations in the field of electricity is unstable, which is caused by the process of its reform. Positive aspects of the current situation include approaching market conditions, increasing proliferation of alternative and renewable energy sources and legislative encouragement of such activities, and the activities of authorized bodies have been improved, especially with regard to the administrative powers and tasks of the Regulator. At the same time, administrative and legal regulation should be aimed at meeting the needs of the population, especially the use of land for electricity, pricing, joint activities of authorized bodies. It should be emphasized that the existing shortcomings of administrative and legal regulation of relations in the field of electricity can be eliminated only comprehensively and consistently.

scholarly journals Infrastructure asset diagnostics: Enabling smarter asset management decisions within the electricity distribution industry

2021 ◽  
Author(s):  
◽  
Richard Vernon Bryson
Keyword(s):  
Asset Management ◽  
Network Reliability ◽  
Time Frame ◽  
Professional Service ◽  
Electricity Distribution ◽  
Current State ◽  
Start Up ◽  
Effective Use ◽  
Project Partner ◽  
Additional Product

<p>This thesis examines the opportunities for better asset management within the electricity distribution industry. The project partner, a supplier of distribution products, observed their customers are often purchasing incorrect equipment for maintenance operations. This observation led the project partner to believe a lack of accurate asset knowledge exists within these electricity distribution businesses (EDBs). Coupled with the information that much of the installed asset base of these EDBs is approaching end of life, it was proposed to investigate the suspected lack of asset condition and type knowledge with the intention of developing the Infrastructure Asset Diagnostic Tool (IADT). A literature review was conducted to determine the current state of asset diagnostics within the electricity distribution industry.   The principles of lean start-up business development have been used to isolate the most needed technology within the New Zealand marketplace through interviews with industry personnel. These interviews helped identify a possible Minimum Viable Product (MVP) for the IADT, and also indicated that providing the IADT as a professional service would be the most appropriate model for the MVP variant.   Condition and type knowledge of wooden poles, conductors and line hardware was found to be the most lacking. It was recommended to focus product development on the assessment of these assets. The project partner has contracted two smart tool suppliers for the analysis of poles and conductor clearances. These products were then integrated to enable accurate assessments of wooden poles. An additional product identified as an aside during the interviews, was for a simple pole designing application which could be used in the field. An existing product from one of the smart tool suppliers contracted can fulfil this requirement.   Possible benefits from IADT use were calculated for a sample EDB. These calculations indicated accurate condition assessment of wooden poles could lead to a saving of up to $5.4 million per year. This saving would equate to a possible reduction in time for securing pole integrity on this network from 30.8 years to just 5.9 years through more effective use of available funding. This reduction would lead to enhanced network reliability and improved public safety in a much shorter time frame than present, therefore this study recommends implementing the MVP form of the IADT at an initial EDB.</p>

scholarly journals Recent Developments in the Energy Harvesting Systems from Road Infrastructures

2020 ◽  
Vol 12 (17) ◽  
pp. 6738
Author(s):  
Niloufar Zabihi ◽  
Mohamed Saafi
Keyword(s):  
Energy Demand ◽  
Fossil Fuels ◽  
Solar Panels ◽  
Research Areas ◽  
Current State ◽  
Harvesting Systems ◽  
Recent Developments ◽  
Efficiency Cost ◽  
New Research ◽  
Wasted Energy

The rapid increase in energy demand has resulted in more dependence on fossil fuels, which leads to higher CO2 emissions every year. To overcome this problem, shifting from fossil fuel-based energy resources to renewable and sustainable ones is essential. One of the new research areas developed in this context is the harvesting of energy from urban infrastructures and, in particular, roads. A large amount of energy in the form of heat or kinetic energy is wasted annually on roads. Recovering these local forms of energy as electricity would improve the energy efficiency of cities. In this review paper, recent developments in the field of energy recovery from roads using solar panels, piezoelectric, thermoelectric and electromagnetic harvesters are discussed along with their efficiency, cost and field implementation. Moreover, new advancements in developing compatible energy storage systems are also discussed and summarised. Based on the review, although all of these systems have the potential of recovering at least a part of the wasted energy, only one of them (the electromagnetic converters) is capable of generating a considerable energy level. In addition, based on the evaluation of the maturity of the technologies, and their cost analyses, more studies are required in order to fill the gap between the current state of the technologies and their full operational form.

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