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

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.

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Regimes, management and economics of energy complexes on the basis of renewable energy sources for autonomous power supply

E3S Web of Conferences ◽

10.1051/e3sconf/201912404023 ◽

2019 ◽

Vol 124 ◽

pp. 04023 ◽

Cited By ~ 2

Author(s):

V. Elistratov ◽

I. Kudryasheva

Keyword(s):

Renewable Energy ◽

Power Supply ◽

Energy Security ◽

Renewable Energy Sources ◽

Energy Sources ◽

Electricity Supply ◽

Fuel Prices ◽

Decentralized Power Supply

The article describes the principles of creation, management and economics of power complexes based on renewable energy sources for decentralized power supply. The introduction of energy complexes based on renewable energy sources can compete with the centralized power supply of the regions by increasing energy security and reducing the risks of major accidents and disasters. Long-term contracts for the electricity supply can be a reliable and economical insurance in case of rising fuel prices in the long term.

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Power Projects and Covid-19: A Practical Analysis of the Relevance of Force Majeure Clauses under the Standardised Power Purchase and Implementation Agreements of Uganda

Global Energy Law and Sustainability ◽

10.3366/gels.2020.0026 ◽

2020 ◽

Vol 1 (2) ◽

pp. 189-193

Author(s):

Aisha Naiga ◽

Loyola Rwabose Karobwa

Keyword(s):

Renewable Energy ◽

Renewable Energy Sources ◽

Clean Energy ◽

The State ◽

Energy Sources ◽

Policy Goals ◽

Force Majeure ◽

Practical Analysis ◽

Energy Justice

Over 90% of Uganda's power is generated from renewable sources. Standardised Implementation Agreements and Power Purchase Agreements create a long-term relationship between Generating Companies and the state-owned off-taker guaranteed by Government. The COVID-19 pandemic and measures to curb the spread of the virus have triggered the scrutiny and application of force majeure (FM) clauses in these agreements. This article reviews the FM clauses and considers their relevance. The authors submit that FM clauses are a useful commercial tool for achieving energy justice by ensuring the continuity of the project, despite the dire effects of the pandemic. Proposals are made for practical considerations for a post-COVID-19 future which provides the continued pursuit of policy goals of promoting renewable energy sources and increasing access to clean energy, thus accelerating just energy transitions.

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Interaction Boundary Determination of Renewable Energy Sources to Estimate System Strength Using the Power Flow Tracing Strategy

Sustainability ◽

10.3390/su13031569 ◽

2021 ◽

Vol 13 (3) ◽

pp. 1569

Author(s):

Namki Choi ◽

Byongjun Lee ◽

Dohyuk Kim ◽

Suchul Nam

Keyword(s):

Renewable Energy ◽

Power Flow ◽

Renewable Energy Sources ◽

Energy Sources ◽

Test Results ◽

Boundary Determination ◽

Actual Interaction ◽

Power Flow Tracing ◽

Estimate System

System strength is an important concept in the integration of renewable energy sources (RESs). However, evaluating system strength is becoming more ambiguous due to the interaction of RESs. This paper proposes a novel scheme to define the actual interaction boundaries of RESs using the power flow tracing strategy. Based on the proposed method, the interaction boundaries of RESs were identified at the southwest side of Korea Electric Power Corporation (KEPCO) systems. The test results show that the proposed approach always provides the identical interaction boundaries of RESs in KEPCO systems, compared to the Electric Reliability Council of Texas (ERCOT) method. The consistent boundaries could be a guideline for power-system planners to assess more accurate system strength, considering the actual interactions of the RESs.

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

Azerbaijan Oil Industry ◽

10.37474/0365-8554/2020-6-7-57-62 ◽

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.

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Wind Data Analysis and Wind Flow Simulation Over Large Areas

Mathematical Modelling in Civil Engineering ◽

10.2478/mmce-2014-0005 ◽

2014 ◽

Vol 10 (1) ◽

pp. 38-45

Author(s):

Angel Terziev ◽

Ivan Antonov ◽

Rositsa Velichkova

Keyword(s):

Renewable Energy ◽

Wind Energy ◽

Renewable Energy Sources ◽

Energy Sources ◽

Wind Flow ◽

Energy Potential ◽

Wind Potential ◽

Wind Energy Potential ◽

The Impact

Abstract Increasing the share of renewable energy sources is one of the core policies of the European Union. This is because of the fact that this energy is essential in reducing the greenhouse gas emissions and securing energy supplies. Currently, the share of wind energy from all renewable energy sources is relatively low. The choice of location for a certain wind farm installation strongly depends on the wind potential. Therefore the accurate assessment of wind potential is extremely important. In the present paper an analysis is made on the impact of significant possible parameters on the determination of wind energy potential for relatively large areas. In the analysis the type of measurements (short- and long-term on-site measurements), the type of instrumentation and the terrain roughness factor are considered. The study on the impact of turbulence on the wind flow distribution over complex terrain is presented, and it is based on the real on-site data collected by the meteorological tall towers installed in the northern part of Bulgaria. By means of CFD based software a wind map is developed for relatively large areas. Different turbulent models in numerical calculations were tested and recommendations for the usage of the specific models in flows modeling over complex terrains are presented. The role of each parameter in wind map development is made. Different approaches for determination of wind energy potential based on the preliminary developed wind map are presented.

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

Electrical Engineering & Electromechanics ◽

10.20998/2074-272x.2021.4.03 ◽

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

WORLD OF FINANCE ◽

10.35774/sf2020.03.114 ◽

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.

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Consumption of combustible minerals in the context of the targets of sustainable development of Ukraine and global environment changes

Geology and Geochemistry of Combustible Minerals ◽

10.15407/ggcm2021.03-04.109 ◽

2021 ◽

Vol 3-4 (185-186) ◽

pp. 109-125

Author(s):

Myroslav Podolskyy ◽

Dmytro Bryk ◽

Lesia Kulchytska-Zhyhailo ◽

Oleh Gvozdevych

Keyword(s):

Sustainable Development ◽

Renewable Energy ◽

Natural Gas ◽

Power Plants ◽

Renewable Energy Sources ◽

Thermal Power ◽

Energy Resource ◽

Fuel Oil ◽

Energy Sources ◽

The European Union

An analysis of Ukraine’s sustainable development targets, in particular in the field of energy, resource management and environmental protection, are presented. It is shown that regional energetic is a determining factor for achieving the aims of sustainable development. Changes in the natural environment in Ukraine due to external (global) and internal (local) factors that are intertwined and overlapped can cause threats to socio-economic development. It is proved that in the areas of mining and industrial activity a multiple increase in emissions of pollutants into the environment are observed. The comparison confirmed the overall compliance of the structure of consumption of primary energy resources (solid fossil fuels, natural gas, nuclear fuel, oil and petroleum products, renewable energy sources) in Ukraine and in the European Union, shows a steaby trend to reduce the share of solid fuels and natural gas and increasing the shares of energy from renewable sources. For example, in Ukraine the shares in the production and cost of electricity in 2018 was: the nuclear power plants – 54.33 % and in the cost – 26.60 %, the thermal power – 35.95 and 59.52 %, the renewable energy sources – 9.6 and 13.88 %. The energy component must be given priority, as it is crucial for achieving of all other goals of sustainable development and harmonization of socio-economic progress. The paper systematizes the indicators of regional energy efficiency and proposes a dynamic model for the transition to sustainable energy development of the region.

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Energy Consumption Optimization in Agriculture and Development Perspectives

Research Anthology on Clean Energy Management and Solutions ◽

10.4018/978-1-7998-9152-9.ch064 ◽

2021 ◽

pp. 1505-1525

Author(s):

Dmitry Tikhomirov ◽

Andrey Izmailov ◽

Yakov Lobachevsky ◽

Anatoly Tikhomirov

Keyword(s):

Renewable Energy ◽

Energy Consumption ◽

Agricultural Production ◽

Renewable Energy Sources ◽

Energy Resource ◽

Energy Sources ◽

Production Wastes ◽

Energy Consumption Optimization ◽

Decentralized Energy ◽

Supply Systems

In this article, indicators of energy consumption in agriculture for Russian Federation are discussed, starting from the year 1990, and their forecast values for the period up to 2030 with the analysis of the decay in the period from 1991 to 2010 and gradual growth of energy resources consumption started in 2010 and continued to the present day has been analyzed. The outlines of the strategy of rural energy base development and optimization have been considered. Demand, development, and implementation conditions of decentralized energy supply systems have been substantiated, and their features, composition, and application field have been specified. It has been shown that the major energy resource of standalone energy systems is local and renewable energy sources and of agricultural production wastes. Methods and technologies for the conversion of renewable energy sources (RES), biomass, and waste of agricultural production into heat and power have been characterized.

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