scholarly journals Efficiency of the RES Hybrid Microinstallations Working in Energy Clusters

2020 ◽  
Vol 328 ◽  
pp. 03016
Author(s):  
Sławomir Sowa
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Smart Cities ◽  
Renewable Energy Sources ◽  
Power Industry ◽  
Energy Sector ◽  
Current Status ◽  
Energy Sources ◽  
Local Energy ◽  
Distributed Energy

The energy sector is constantly changing. Electromobility, improvement of energy efficiency, smart cities these are just some of the challenges that the present power industry is facing. The main goal for the power industry is to ensure the energy security of its customers, to develop low-community technologies which are mainly based on renewable energy sources and local raw materials. The transition from a centralized energy sector based mainly on conventional power plants to a distributed energy sector requires constant control and management of the generation and demand for energy. One of the solution existing since 2016 are energy clusters. The concept of their functioning is based on the civil-law agreement of locally operating entities that produce, sell, store and consume electricity, heat and cold. The main purpose of introducing energy clusters is the development of distributed energy. Energy clusters ensure the improvement of local energy security with relatively low outlays and low environmental impact. Technological development and installations based on renewable energy sources make energy clusters a beneficial and cost-effective solution for local energy sector. The article presents the idea of energy clusters functioning, and describes the current status of development. It also includes the hybrid systems characteristics of RES systems as an effective source of energy. The conclusion includes the legitimacy of the energy cluster development based on RES installations.

scholarly journals THE PARADIGM OF ECONOMIC ENERGY SECURITY BY ORIENTATION ON RENEWABLE ENERGY SOURCES

2020 ◽  
pp. 114-125
Author(s):  
Tetyana DERKACH ◽  
Denys CHEBANENKO
Keyword(s):  
Renewable Energy ◽  
National Economy ◽  
Energy Security ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Economic Feasibility ◽  
Energy Sources ◽  
Energy Prices ◽  
Equal Distribution ◽  
The Impact

Introduction. The topic of renewable energy today is one of the most relevant and requires consideration from the point of view of all components of this process, namely economic, financial, environmental, technological, and others. The transition to renewable energy is already irreversible today since natural resources are depleted, fuel prices are the subject to significant fluctuations, and the stable growth of the national economy is ensured by energy security. The purpose. The purpose of the article is to analyze the volume of global energy consumption, to analyze the impact of the introduction of renewable energy sources on the development of the national economy, to ensure energy security with the depletion of hydrocarbon resources and a slight diversification of their suppliers. Results. Today the Ukrainian economy is the most energy-intensive. Unstable energy prices are a threat both to the global economy and to each country separately. Therefore, in the event of a decrease in the supply of traditional energy resources, the importing countries experience the greatest difficulties. The existing tendency in Ukraine to increase the consumption of traditional energy sources, combined with the absence of a targeted policy aimed at reducing the volume of environmental pollution, will lead to an increase in negative economic consequences. The advantage of renewable energy sources is their equal distribution throughout the country (with the exception of water resources). This feature leads to the formation of one of the main characteristics of power systems based on renewable energy sources, namely, their decentralization. It should be borne in mind that the world energy market is made up of state and non-state participants. Non-state participants are showing an upward trend. However, the state should have the greatest influence on the national energy sector. Renewable energy is an area that, in the Ukrainian context, depends on state support, namely economic and administrative incentives. The dynamics of the development of renewable energy should be combined with the balanced development of the fuel and energy sector in Ukraine. Conclusions. The process of development and transition to renewable energy needs a systematic approach. Both qualitative and quantitative approaches are needed to assess the transition to renewable energy. An effective strategy for the transition to the introduction of renewable energy technologies should be justified by economic feasibility. The transition from traditional energy to renewable sources should lead to energy security, which contributes to stable economic growth, political independence, and improving the quality of the environmental component.

Energy security of the European Union – opportunities and challenges

2020 ◽  
Vol 4 ◽  
pp. 93-107
Author(s):  
Dominika Czapla
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Energy Security ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Energy Sources ◽  
The European Union ◽  
Member States ◽  
The Future ◽  
Nord Stream

For many years, the future of energy has been one of the most important problems and challenges for both national and global policy making. It is related to the high responsibility of the energy sector for climate change on Earth, but also for caring about ensuring sufficient energy for the future generations. Thus, energy policy is an important pillar of maintaining, broadly understood as internal security of the country. The biggest challenge related to ensuring energy security of the European Union is the diversification of energy sources. Member States are trying to tackle this challenge in two ways. Firstly, through the development of renewable energy, and secondly, looking for new channels for the supply of non-renewable energy. The restructuring of the energy sector, which has taken place in recent years, in accordance with the guidelines of the European Union, aims to intensify the use of environmentally friendly renewable energy sources. Equally important is the construction of the Nord Stream 2 and Turk Steam gas pipelines, which has been ongoing for several years, which raises much controversy in the Member States. The article is an analysis of the opportunities and challenges facing the European Union related to ensuring stable energy supplies to European citizens.

scholarly journals Electrifying Greece with solar and wind energy

2014 ◽  
Vol 18 (3) ◽  
pp. 709-720 ◽  
Author(s):  
Dimitris Mentis
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
European Community ◽  
Energy Security ◽  
Positive Impact ◽  
Renewable Energy Sources ◽  
Ghg Emissions ◽  
Green Energy ◽  
Current Status ◽  
Energy Sources

Ensuring energy security, reducing GHG emissions and boosting the competitiveness of a country?s economy by attracting investments and technical knowhow are of paramount importance considering the targets of ?20-20-20? set by the European community. Being the cradle of civilization, Greece appears today as a country caught in a prolonged hard economic and social crisis, the way out of which its citizens are looking forward as well as the entire European Union. Establishment of the leading renewable energy sources like solar and wind in Greece will not only increase the independence of its own electrification but will also provide with a foundation for developing the market of international trade of ?green? energy. This paper initially highlights the current status of photovoltaics and wind turbines in Greece. Furthermore, this study evaluates whether a higher penetration of the above mentioned green energy sources would have positive impact in the economy of the country or not and in what extent they could decline the CO2 emissions until 2020, comparing to the corresponding levels in 2010.

scholarly journals STIMULATING INNOVATION IN DISTRIBUTED ENERGY

2018 ◽  
pp. 54-59
Author(s):  
T. G. Popadyuk ◽  
D. A. Kupreev
Keyword(s):  
Renewable Energy ◽  
Electric Power ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Electric Power Industry ◽  
Power Industry ◽  
Energy Sources ◽  
Distributed Energy

The development of distributed energy can significantly improve the efficiency of the electric power industry by using new technologies. Existing mechanisms are associated with the threats of losing existing competencies in the production of domestic equipment for distributed energy and the risks of creating the market only for foreign producers. The article contains analysis of incentive measures for distributed energy, in particular, objects based on renewable energy sources, and contains identified problems and suggested ways to solve them.

ENERGY CLUSTERS IN POLAND – A THEORETICAL APPROACH

2020 ◽  
Vol XXII (4) ◽  
pp. 192-205
Author(s):  
Aleksandra Siudek ◽  
Anna Klepacka
Keyword(s):  
Water Management ◽  
Renewable Energy ◽  
Environmental Protection ◽  
Theoretical Approach ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Energy Sources ◽  
Economic Evolution ◽  
Distributed Energy ◽  
Energy Cluster

The article attempts to theoretically analyze the concept of clusters, in particular energy clusters. The paper presents the economic evolution of the cluster theory and the current Polish approach to energy clusters. Cluster structures in Poland have been presented against a background of European experiences. It was found that the current progression of globalization prompts for saving measures, especially in the energy sector, which drives the operation of economies. The way to meet EU requirements regarding the increased share of renewable energy sources and consumption limitation of conventional resources may be distributed energy based on the actions of prosumers, which is undoubtedly manifested in energy clusters. An incentive to create energy clusters are competitions for projects supporting cluster initiatives announced by the National Fund for Environmental Protection and Water Management as the Implementing Institution under the Infrastructure and Environment 2014-2020 Operational Programme. Among 66 entities awarded the Pilot Energy Cluster Certificate, the largest number of energy clusters is located in the Mazowieckie Voivodship (10), and the least in the Świętokrzyskie Voivodship (1). Barriers to the creation of energy clusters most often result from a lack of financing and poorly defined central regulations concerning the energy and renewable energy sector in Poland.

scholarly journals Influence of the Share of Renewable Energy Sources on the Level of Energy Security in EECCA Countries

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 903 ◽  
Author(s):  
Ivan Trifonov ◽  
Dmitry Trukhan ◽  
Yury Koshlich ◽  
Valeriy Prasolov ◽  
Beata Ślusarczyk
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Structural Characteristics ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Energy Sources ◽  
Structural Content ◽  
High Degree

In this study we aimed to determine the extent to which changes in the share of renewable energy sources, their structural complex, and the level of energy security in Eastern Europe, Caucasus and Central Asia (EECCA) countries in the medium- and long-term are interconnected. The study was performed through modeling and determination of the structural characteristics of energy security in the countries. The methodology of the approach to modeling was based on solving the problem of nonlinear optimization by selecting a certain scenario. For the study, the data of EECCA countries were used. The ability of EECCA countries to benefit from long-term indirect and induced advantages of the transformation period depends on the extent to which their domestic supply chains facilitate the deployment of energy transformation and induced economic activity. This study provides an opportunity to assess the degree of influence of renewable energy sources on the level of energy security of countries in the context of energy resource diversification. The high degree of influence of renewable energy sources on energy security in the EECCA countries has been proven in the implementation of the developed scenarios for its increase. Energy security is growing. At the same time, its level depends not only on an increase in the share of renewable sources but also on the structure of energy resources complex of countries, and the development of various renewable energy sources. Therefore, today the EECCA countries are forced not only to increase the share of renewable energy sources but also to attach strategic importance to the structural content of their energy complex.

Role of alternative and renewable energy sources in assurance of Azerbaijan’s energy security

2020 ◽  
pp. 57-62
Author(s):  
G.S. Suleimanov ◽  
◽  
G.N. Safarova ◽  
A.I. Mirheydarova ◽  
◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Renewable Energy Sources ◽  
Production Capacity ◽  
Implementation Process ◽  
World Market ◽  
Energy Sources ◽  
Traditional Natural ◽  
Oil Gas

The paper studies the role of alternative and renewable energy sources (ARES) in the maintenance of Azerbaijan’s energy security. In the view of annual depletion of reserves capacity of such traditional natural resources as the oil, gas, coal, shale and the environmental disorder in their usage, as well as considering the fact of their implementation as the major pressure means serving to the geopolitical interests of the countries, due to the instability and variability of the fuel types prices in the world market, the necessity of surveying new alternative and renewable energy sources in the region is marked. It is pointed out that wide-scale recovery of alternative and renewable energy sources in Azerbaijan will lead to the involving of oil-gas raw into the petrochemical industry, to the decrease of degree of the harmful man-made effect on the environment in the process of energy production, as well as to the significant reduction of economic dependence on the various fuel types. The methods of increasing the production capacity of alternative energies in the strengthening of country’s energetic safety by the acceleration of implementation process of alternative and renewable energy sources were studied and the significance of the development of oil concept considered the essential of long-term maintenance of national energy safety marked as well.

scholarly journals Improvement of turbogenerators as a technical basis for ensuring the energy independence of Ukraine

2021 ◽  
pp. 19-30
Author(s):  
V. V. Shevchenko ◽  
A. N. Minko ◽  
M. Dimov
Keyword(s):  
Renewable Energy ◽  
Electric Power ◽  
Energy Security ◽  
Nuclear Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electric Power Industry ◽  
Energy Sources ◽  
The World ◽  
Energy Independence

The paper defines the directions of improving turbogenerators as the basis for ensuring the energy independence of Ukraine. The analysis of the state, problems and prospects for the development of modern electric power industry. Goal of the work is to identify promising directions for sustainable development of the national electric power industry in order to ensure energy security of Ukraine, to conduct a comparative analysis of electricity sources, to confirm the need to improve the main sources – turbogenerators. Methodology. During the research, an analytical analysis of the electricity sources, which are installed at power plants in Ukraine and the world, was carried out, taking into account the growth of the planet's population and its energy activity. Cyclic theory was chosen as the theoretical basis for forecasting. On the basis of this theory, global development trends, advantages and disadvantages of currently used sources of electricity - thermal (including nuclear) power plants and stations that operate from renewable energy sources - have been established. A review of literary sources on the methods of the energy sector forecasting the development, including the development of the energy sector in Ukraine, has been carried out. Originality. It has been established that due to the active growth of the planet's population, with the increase in its energy activity, obtaining electricity from renewable energy sources is not enough, that for the next 20-30 years nuclear power plants will be the main sources of electricity. The internal and external threats to the energy security of Ukraine, directions of development of turbogenerator construction, ways to improve turbogenerators, to increase their energy efficiency, power per unit of performance, to increase the readiness and maneuverability factors, and overload capacity have been identified. Practical significance. The need to continue the modernization and improvement of the turbogenerators of nuclear power plant units, as the main sources of electricity, has been proved. The directions of their improvement are established: increasing the power in the established sizes, making changes to the design of the turbogenerators inactive elements, replacing the cooling agent to keep Ukrainian turbogenerators at the world level, improving auxiliary systems, improving and increasing the reliability of the excitation system, introduction of automatic systems for monitoring the state turbogenerators. Possible limits of use, advantages, disadvantages and problems of using renewable energy sources for Ukraine have been established.

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