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

2019 ◽  
Vol 124 ◽  
pp. 04023 ◽  
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.

A Hybrid Decentralized Power Supply System Based on Different Kinds of Renewable Energy Sources

2018 ◽  
pp. 8-13
Author(s):  
Boris M. ANTONOV ◽  
◽  
Nikolai N. BARANOV ◽  
Konstantin V. KRYUKOV ◽  
Yuri K. ROZANOV ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Power Supply System ◽  
Renewable Energy Sources ◽  
Supply System ◽  
Energy Sources ◽  
Decentralized Power Supply

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.

scholarly journals Influence of Renewable Energy on Energy Security of Decentralized Electricity Systems

2020 ◽  
pp. 632-642
Author(s):  
Boris V. Lukutin ◽  
Violetta R. Kiushkina
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Energy Security ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Decentralized Energy Systems ◽  
Decentralized Energy ◽  
Supply Systems ◽  
Electricity Systems ◽  
Resource Security

The article offers evaluation of the potential of renewable energy in improving the energy security of decentralized power supply systems and solving the problems of their development. The authors proposed a complex of indicative indicators with introduction of renewable energy sources as part of separate indicators, which allows us to research the energy security problems of regional decentralized energy systems of power supply. In the rationale for each indicator the place of renewable energy sources in aspects of resource security, the level of reliability of autonomous power supply systems, environmental and other positions of energy security have been shown. The proposed module of indicators with introduction of renewable energy includes a science-based list of criteria, methods and tools for their evaluation with the focus of measures to ensure energy security by means of integrating into autonomous power supply systems of renewable energy plants. The article traces the matching of the proposed approaches with the place of renewable energy in strategic planning documents in the national security of the Russian Federation

scholarly journals Renewable energy sources and storage batteries for electrification of Russian decentralized power supply systems

2021 ◽  
Vol 2061 (1) ◽  
pp. 012016
Author(s):  
D Karamov ◽  
I Volkova ◽  
Suslov ◽  
I Dolmatov
Keyword(s):  
Renewable Energy ◽  
Cost Effectiveness ◽  
Diesel Fuel ◽  
Power Supply ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Storage Batteries ◽  
The Cost ◽  
And Storage ◽  
Decentralized Power Supply

Abstract The use of renewable energy sources (RES) and storage batteries (SB) in decentralized power systems is a cost-effective way to supply power to consumers. In this case, storage batteries are one of the most important system components. The significance of storage batteries is conditioned by a stabilizing effect obtained at generation from RES that are defined by stochastic oscillating functions. However, it is worth noting that storage batteries also improve the cost-effectiveness of such systems by reducing consumption of diesel fuel. This is particularly noticeable at night when load is the least and the use of diesel generators is inefficient. One of the most important points is the determination of potential internal processes of aging and breakdowns that occur in storage batteries during operation. The use of a tested model for categorization of storage batteries according to the operating conditions makes it possible to take account of these factors at the stage of a system design. The paper presents a detailed analysis of decentralized power supply system Verkhnyaya Amga. The focus is made on the cost-effectiveness of a combined use of RES with storage batteries, annual saving of diesel fuel, operating parameters. The research reveals hidden problems that represent various uncertainties that affect greatly the economic and operation parameters of the system.

scholarly journals The use of biogas as a biofuel for powering biogas, ecology, renewable Energy sources

2019 ◽  
Vol 24 (6) ◽  
pp. 218-222
Author(s):  
Mariusz Niekurzak ◽  
Ewa Kubińska-Jabcoń
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Quality Requirements ◽  
Fossil Energy ◽  
Renewable Fuel ◽  
Fuel Prices ◽  
Current State ◽  
New Energy

Energy security, ending resources of fossil energy sources, increase in conventional fuel prices, as well as dependence on imported fuels, have an impact on the need to search for new energy sources. One of the appropriate solutions to this problem is the implementation of biogas as a renewable fuel for transport. Biogas is usually used to generate heat or electricity, but after meeting certain quality requirements, it can also be used as a biofuel for powering mechanical vehicles. The article presents the current state of development of the biogas industry in Poland and defined the prospects for its development.

OBJECTIVES AND STRATEGY FOR MANAGING THE CONFIGURATION OF A RURAL MICRO-GRID CONTAINING RENEWABLE ENERGY SOURCES

2021 ◽  
Vol 16 (3) ◽  
pp. 90-97
Author(s):  
Anatoliy Seyfullin ◽  
Aleksandr Vinogradov ◽  
Alina Vinogradova
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Electricity Supply ◽  
Switching Systems ◽  
Electric Grid ◽  
Electrical Grid ◽  
Operating Modes ◽  
Electric Grids

A significant disadvantage of rural distribution electric grids of 0.4 kV is the lack of the ability to operate their configuration. This disadvantage leads to a decrease in the reliability of electricity supply and significant damage to rural consumers from interruptions in electricity supply. A promising direction is the introduction of distributed generation based on renewable energy sources (RES), electricity storage devices into the structure of rural electric grids and the construction of microgrids based on them. However, the issues of building rural microgrids have not been worked out today, the search for rational options for their structure is being conducted all over the world, the development of equipment for their construction is underway. Therefore, the purpose of the research presented in the article is to determine the tasks and strategies for operating the configuration of rural microgrids containing renewable energy sources (RES) based on the use of means of partitioning and reserving the electric grid, that is, means of controlling its configuration and means of monitoring the parameters of its operation modes. As a means of partitioning and reserving the electric grid, it is proposed to use multi-contact switching systems installed at the points of branches in the grid and equipped with sensors for the parameters of the grid operating modes. The use of multi-contact switching systems allows you to implement a flexible change in the grid configuration when changing its operating modes. Power supply sources are also equipped with sensors. The data from the sensors is transmitted to the virtual power plant, which monitors the operating modes of the grid and forms commands for controlling its configuration. This allows you to monitor the operating modes of grid sections and power supply sources, identify normal, emergency and post-emergency modes and make the necessary changes to the grid configuration in a timely manner. As a strategy for the operation of an electrical grid containing renewable energy sources and configuration operating tools, a strategy is proposed that assumes the maximum use of the energy generated by renewable sources when the restrictions are met – a given level of reliability of power supply to consumers and the quality of electricity supplied to them

scholarly journals The Result of Residential Segment of Renewable Energy Production in Hungary

2018 ◽  
Vol 9 (1) ◽  
pp. 139-142
Author(s):  
Balázs Kulcsár
Keyword(s):  
Renewable Energy ◽  
Energy Dependence ◽  
Energy Security ◽  
Energy Cost ◽  
Energy Production ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Electricity Supply ◽  
Renewable Energy Production

Abstract The proportion of renewable energy sources must be increased to reduce the energy dependence and energy cost of municipalities, to increase energy security and to consider aspects of the environment. The purpose of this research is to determine how and to what extent small-size household power plants (SSHPP) – which belong to the category of smallest-scale power plants –can contribute to providing the electricity supply with regard to all the Hungarian settlements.

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

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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