Step-wise Approach to Investigate the Impact of Energy Transition on Voltage Dips in Dutch Electricity Grid

In order to avoid the limitations of traditional mechanism modeling method, a neural network (NN) model of variable - pitch wind turbine is built by the NN modeling method based on field data. Then considering that from wind turbine’s startup to grid integration, the generator speed must be controlled to rise to the synchronous speed smoothly and precisely, a neural network model predictive control (NNMPC) strategy based on the small-world optimization algorithm (SWOA) is proposed. Simulation results show that the strategy can forecast the change of generator rotational speed based on the wind speed disturbance, making the controller act ahead to eliminate the impact of system delay. Furthermore, the system output can track the reference trajectory well, making sure that the system can connect the electricity grid steadily.

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Construction and survey of changes in electric arc furnace parameters based on energy conservation model using Pscad software

Journal of Science, Quy Nhon University ◽

10.52111/qnjs.2021.15108 ◽

2021 ◽

Vol 15 (1) ◽

pp. 75-83

Author(s):

Ngoc Toan Luong ◽

◽

Duc Tung Doan

Keyword(s):

Energy Conservation ◽

Power Quality ◽

Power Level ◽

Electric Arc Furnace ◽

Electric Arc ◽

Arc Furnace ◽

Electricity Grid ◽

Power Quality Improvement ◽

Conservation Model ◽

The Impact

Actual analysis showed that the arc furnace current contains many harmonics that adversely affect the power quality. There are many domestic and foreign reports on modeling and assessing the impact of EAF on the grid based on different models. However, EAF's selection of capacity for research and application of power quality improvement devices suitable to the power level has not been mentioned, these models are mainly built on Matlab Simulink software. should be primarily academic. PSCAD is one of the widely used software for electrical system simulation and is used by large companies such as ABB, Korean power corporation Kepco. Building EAF model with PSCAD software will increase the ability to apply simulation results into practice. The objective of the paper is to build an electric arc furnace model based on the energy conservation model with PSCAD software, thereby assessing the change of parameters in the model and the effect of this load on electricity grid during operation.

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The use of temporal factors for improved CO2 emissions accounting in buildings

Building Services Engineering Research and Technology ◽

10.1177/0143624417753297 ◽

2018 ◽

Vol 39 (2) ◽

pp. 196-210 ◽

Cited By ~ 4

Author(s):

Barny Evans ◽

Sabbir Sidat

Keyword(s):

Air Quality ◽

Energy Demand ◽

Energy System ◽

Net Energy ◽

Electricity Grid ◽

Electrical Grid ◽

Significant Difference ◽

Emissions Factor ◽

Single Number ◽

The Impact

This paper is an investigation into the issues around how we calculate CO2 emissions in the built environment. At present, in Building Regulations and GHG Protocol calculations used for buildings and corporate CO2 emissions calculations, it is standard to use a single number for the CO2 emission factor of each source. This paper considers how energy demand, particularly electricity at different times of the day, season and even year can differ in terms of its CO2 emissions. This paper models three different building types (retail, office and home) using standard software to estimate a profile of energy demand. It then considers how CO2 emissions calculations differ between using the single standard emissions factor and using an hourly emissions factor based on real electrical grid generation over a year. The paper also examines the impact of considering lifetime emissions factors rather than one-year factors using UK government projections. The results show that there is a significant difference to the analysis of benefit in terms of CO2 emissions from different measures – both intra- and inter-year – due to the varying CO2 emissions intensity, even when they deliver the same amount of net energy saving. Other factors not considered in this paper, such as impact on peak generation and air quality, are likely to be important when considering whole-system impacts. In line with this, it is recommended that moves are made to incorporate intra- and inter-year emissions factor changes in methodologies for calculating CO2 emissions. (This is particularly important as demand side response and energy storage, although generally accepted as important in the decarbonisation of the energy system at present will show as an increase in CO2 emissions when using a single number.) Further work quantifying the impact on air quality and peak generation capacity should also be considered. Practical application: This paper aims to help practitioners to understand the performance gap between how systems need to be designed in order to meet regulations compared to how buildings perform in reality – both today and in the future. In particular, it considers the use of ‘real-time’ carbon factors in order to attain long-term CO2 reductions. This methodology enables decision makers to understand the impacts of different energy reduction technologies, considering each of their unique characteristics and usage profiles. If implemented, the result is a simple-to-use dataset which can be embedded into the software packages already available onto the market which mirrors the complexity of the electricity grid that is under-represented through the use of a static carbon figure.

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Sustainable Electric Vehicle Transportation

Sustainability ◽

10.3390/su132212379 ◽

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.

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Energy Security Problem amid Global Energy Transition

Vestnik RUDN International Relations ◽

10.22363/2313-0660-2021-21-4-772-784 ◽

2021 ◽

Vol 21 (4) ◽

pp. 772-784

Author(s):

Yury V. Borovsky

Keyword(s):

Energy Security ◽

Energy Use ◽

Rapid Development ◽

Energy Transition ◽

The United States ◽

Low Carbon ◽

Security Threat ◽

The Us ◽

The Impact ◽

The Eu

In the early 2020s the worlds transition from carbon-intensive to climate-neutral energy use has already become a discernible and a difficult-to-reverse process. With Joe Bidens election as US president, the United States have returned to the Paris Climate Agreement and have become a key driver of this process (along with the EU and China). As a result, the international community has reached a consensus on the ongoing energy transition. This process will require considerable effort and may take several decades. Nevertheless, the impact of energy transition on traditional approaches to energy security, which emerged largely as a result of the global oil crises of the 1970s and 1980s and are centered around the supply of fossil fuels, is already a relevant research topic. This problem is examined relying on the relevant terminological, theoretical and factual material. The article concludes that energy transition will ultimately undermine the carbon paradigm that has underpinned energy security policies since the 1970s. Rapid development of renewable and other low-carbon energy sources will certainly remove key energy security risks of energy importers and, possibly, allow them to achieve energy independence. However, a post-carbon era may also generate new risks. For countries that rely heavily on oil, gas and coal exports, energy transition will result in the loss of markets and revenues. It may present an energy security threat for them as well as it will require a costly and technologically complex process of the energy sector decarbonization. Some exporters, especially those with high fuel rents and insufficient financial reserves, may face serious economic and social upheavals as a result of energy transition. The EU and the US energy transition policies reflect provisions of all three fundamental international relations theoretical paradigms, including realism. This means that the EU and the US policy, aimed at promoting climate agenda, may be expected to be rather tough and aggressive. China as the third key player in energy transition is still following a liberal course; however, it may change in the future.

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Smart grids, prosumers and energy management within a smart city integrated system

Proceedings of the International Conference on Business Excellence ◽

10.2478/picbe-2020-0105 ◽

2020 ◽

Vol 14 (1) ◽

pp. 1121-1134

Author(s):

Marco Savastano ◽

Marta-Christina Suciu ◽

Irina Gorelova ◽

Gheorghe-Alexandru Stativă

Keyword(s):

Smart Grids ◽

Smart Cities ◽

Electricity Consumption ◽

Energy Transition ◽

Integrated System ◽

Renewable Sources ◽

Electricity Grid ◽

New Type ◽

Alternative Sources ◽

Energy Prosumers

AbstractDue to a significant increase in electricity consumption globally, governments have to look and to identify better, more efficient and effective alternatives and sustainable energy sources to meet this high demand. This becomes more and more important in the context of implementing modern approaches such as those that might be applied in cases of smart cities and cultural and creative communities. Electricity can be produced based on conventional sources, but also on an emergent use of renewable sources. The electricity grid is usually designed as unidirectional. We consider that in case of smart cities and creative-innovative communities there is a need to implement mostly new smart grids that are bidirectional. This may allow and support the emergency of a new type of electricity user, called “prosumers”, who produces electricity from renewable sources, next uses & shares them smartly within the smart grid and finally stores them. Globally, photovoltaic energy prosumers are considered one of the most important actors in the energy transition and seem to be ready to introduce significant amounts of electricity within the grid. We anticipate that people living in households in smart cities and communities among most regions of the world will tend in the future to improve their self-consumption from the production of smart energy. This paper supports the idea that using mostly electricity from renewable alternative sources, especially solar, can be also developed with the help of households acting within smart cities and communities. The paper will also present briefly an overview of the scientific literature dedicated to this topic. We will also provide further interesting insights through a number of case studies representing good practices regarding prosumers in Italy and Romania.

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The Impact of Financial Development On The Clean Energy Transition In MENA Region: The Role of Institutional And Political Factors.

10.21203/rs.3.rs-1090260/v1 ◽

2021 ◽

Author(s):

Haifa Saadaoui

Keyword(s):

Renewable Energy ◽

Financial Development ◽

Energy Transition ◽

Transition Process ◽

Clean Energy ◽

Mena Region ◽

Political Factors ◽

Long Run ◽

The Impact

Abstract This study focuses on the role of institutional factors as well as financial development in renewable energy transition in Middle East and North Africa (MENA) region over the period 1990-2018 using the ARDL PMG method. The investigation of long-run and short-run analysis confirms that institutional and political factors play a key role in promoting the transition to renewable energy, and shows that improving these factors can lead to decarbonization of the energy sector in the long run. Another important finding is that global financial development does not have a significant effect on the transition process in the long run, implying that the whole financial system needs a fundamental structural change to accelerate the substitution between polluting and clean energies. However, in the short term, the impact appears to be negative and significant, highlighting the inadequacy of financial institutions and financial markets in promoting the region’s sustainable path. Moreover, income drives the transition to renewable energy in both short and long term. The causality results show that both financial development and institutional quality lead to renewable energy transition, while there is a bidirectional link between income and renewable energy.This study can provide a very useful recommendation to promote a clean transition in the MENA region.

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The Contribution of Natural Gas to the Paradigm of Energy Transition in Portugal: Economy, Continuity of Supply and Welfare

10.12944/jbsfm.02.01-02.07 ◽

2020 ◽

Vol 2 (1-2) ◽

pp. 56-67

Author(s):

Nuno Domingues

Keyword(s):

Natural Gas ◽

Deductive Reasoning ◽

Meta Analysis ◽

Energy Transition ◽

Energy System ◽

Environmental Aspects ◽

Secondary Sources ◽

Pull Out ◽

The Government ◽

The Impact

The present paper presents an analysis on the role of Natural Gas (NG) in Portugal facing the new requirements. The analyses is based on the economic, societal and environmental aspects, being the major reasons to align the Government strategy, define policies and reproduce the EU directives. The analyses do not reflect on the pandemic and financial crisis because the author considers that these factors are outside of the energy system and have not been steady along the period in study, thereby it can mislead the conclusions. This study relies mostly on non-empirical research, in which the research adopted both inductive and deductive reasoning to theorize logical assumptions about the Portuguese energy market. Building on reflection and personal observation on the field, the researchers carried out this article by gathering relevant data (i.e., statistics) through critical studies, systematic review of literature and meta-analysis on the theme. Therefore, the methodology used is based mainly on qualitative exploration of secondary sources and data, out of which one will pull out insights. The novelty of the study is to take in consider-ation all the above factors and produce results that are more adequate to reality, as all of them are interconnected and by changing one of them it will be changes in the remain. The open literature mainly focusses on the economic, the energetic, the social or the environmental aspects and neglects the others. One can conclude that there is economic advantage on efficiently distributing and consuming NG. Also, the impact of NG on a society welfare is positive. Last, the NG brings flexibility to the grid, which is more and more important in the perspective and ambition to increase the share of intermittent renewable energies.

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German–Russian gas relations in face of the energy transition

Russian Journal of Economics ◽

10.32609/j.ruje.6.55478 ◽

2020 ◽

Vol 6 (4) ◽

pp. 406-423

Author(s):

Kirsten Westphal

Keyword(s):

Climate Change ◽

Value Chain ◽

Energy Transition ◽

Legal Framework ◽

Paradigm Shifts ◽

Address Climate Change ◽

Eu Member States ◽

Russian Economy ◽

The Impact ◽

The Relationship

Russia is the world’s largest gas exporter and Germany is its most important market. Moreover, natural gas is a centerpiece of the Russian economy and the backbone of its energy supply to the Russian population. In terms of its external gas relations, Germany has always kept a special and strategic position, both in terms of volumes, but also in substance. This contribution explores the impact of the energy transition on the bilateral gas relationship. It argues that the bilateral gas relationship has been subjected to various paradigm shifts in the past, but, until recently, the relationship has been seen as in line with the strategic energy triangle of climate change/sustainability, supply security and economic competitiveness. This perception has come into question over two issues: climate change and supply security. Moreover, Germany’s authority over the conduct and the legal framework of bilateral gas relations has been increasingly contested, by Brussels, but also horizontally by other EU member states. At this stage, it is very uncertain whether both sides will manage to maintain and redefine their close energy partnership to address climate change. Decarbonizing the gas value chain would be a centerpiece. This would require a political shift away from securitization to decarbonization, not only in Germany, but even more so in the EU, and in particular, in Russia.

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