scholarly journals GREEN ENERGY: SALVATION OR THREAT TO THE GLOBAL ECONOMIC AND ENERGY SYSTEM

2021 ◽  
Author(s):  
Sergiy Korinnyi ◽  
Mariia Mikhailutsa ◽  
Anastasiia Bondarenko
Keyword(s):  
Energy Storage ◽  
Alternative Energy ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy System ◽  
Green Energy ◽  
Human Potential ◽  
Energy Sources ◽  
The World

The article examines a set of issues related to "green energy" in the world, problems and opportunities from the introduction of alternative energy sources for greening the economy, developing sustainable economy and preserving human potential. Analytical works of some Ukrainian authors have been studied, in which the current state, obstacles to the realization and prospects of "green energy" in the world have been determined. The purpose of the article is to refute the allegations about the need to immediately stop the introduction of "green technologies", including the construction of solar stations. There are two opposing views on the need for green energy, which have been being discussed around the world for the past few decades. The most popular evidence from both sides on this issue is given, in particular, that the planet can be saved only through the active use of renewable energy sources, and on the other hand, that "green energy" at the current level of human development will cause even more environmental and economic problems. The arguments most often expressed by opponents of the active introduction of "green energy" are highlighted, namely: the high cost of new technologies compared to existing types of generation; the inability of "green energy" to solve the problem of warming on the planet with reference to scientific research on the amount of CO2 emissions from different types of generation as a major factor in warming; danger to the energy systems of all countries of the world due to the instability of energy production by natural factors. Counter-arguments on these issues are provided and evidence of the ability and necessity to use clean technologies is provided. The problem, on which the opinions of both parties coincide, is highlighted - the reluctance of "green" investors to spend money on storage systems, energy storage and stabilization of energy systems due to their high cost, size, insufficient energy consumption and insufficient duration of work. It is noted that the issue of developing the latest energy storage and stabilization systems and their installation at new and existing RES stations needs to be addressed immediately, but is not an obstacle to the further development of green energy.

The Fourth Energy Transition and Development of Energy Sector in Kazakhstan

2020 ◽  
Vol 9 (3) ◽  
pp. 735
Author(s):  
Assem S. BAKTYMBET ◽  
Saule S. BAKTYMBET ◽  
Rakymzhan K. YELSHIBAYEV ◽  
Galiya S. UKUBASSOVA ◽  
Aisara S. BAKTYMBET
Keyword(s):  
Renewable Energy ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy Transition ◽  
Energy System ◽  
Energy Sector ◽  
Energy Industry ◽  
Energy Sources ◽  
Global Energy ◽  
The World

The relevance of the subject matter is conditioned upon the fact that currently the main direction of global energy development is already clearly visible: under the influence of changes in energy policy and the development of new technologies, the world is entering the stage of the fourth energy transition to the widespread use of renewable energy sources and displacement of fossil fuels. The development of Kazakhstan's economy requires the transition of energy towards clean and safe renewable sources, which will let the country build a new strong economy and break out of the long-running socio-economic decline, help the international community solve the problem of climate change and improve the safety and welfare of its citizens. The purpose of the study: The purpose of the paper is to develop recommendations for the development of Kazakhstan's energy industry at a new stage in the fundamental transformation of the global energy system. Leading approach to researching the problem. The leading methods of researching the problems of the paper include the analysis of theoretical sources, analysis of statistics, and comparison. Analysis of statistical indicators plays a crucial role in the study, since data on the development of Kazakhstan's energy industry can be directly obtained from statistical databases. The results of the study. The paper discusses the essence of the fourth energy transition, its main aspects, explores renewable energy sources, identifies the features and problems of Kazakhstan's energy industry, and develops ways to solve them. Prospects for further research. To implement the modern provisions of the fourth energy transition in Kazakhstan, it is necessary to use a systematic approach. The basic elements of such a transition are the introduction of renewable energy and energy efficiency (the intensification of reducing the energy intensity of goods and services). The materials of the paper are of practical value for the development of Kazakhstan’s energy during the period of fundamental structural transformations of the world energy sector.  

scholarly journals BATTERY TECHNOLOGY: THE FUTURE FOR SUSTAINABLE INDUSTRIAL AND ECONOMIC GROWTH

2020 ◽  
Vol 4 (3) ◽  
pp. 366-369
Author(s):  
Inniyaka Irmiya ◽  
Ibrahim Ibrahim ◽  
Ibrahim Hussain
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Alternative Energy ◽  
New Technologies ◽  
Storage Systems ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Energy Storage Systems ◽  
Battery Technology ◽  
Electrochemical Energy

Depleting oil reserves and environmental concerns on emission have heightened the search for alternative energy sources and efficient electrochemical energy systems through renewable energy sources. Technological advancements in the field of automation, robotics, communication, nanotechnology, electrification and hybridization of vehicles as well as the push for renewable energy sources have broadened the scope of opportunities for Electrochemical Energy Storage Systems (ESS). These new technologies place a growing demand on compact, safe and higher capacity batteries to enable functionality. Battery technology for different needs and application have become an indispensable aspect of sustainable development in the quest for renewable energy and global sustainable carbon emission reduction. This paper briefly looks at the integrated nature of batteries to human day to day activities, the current state and impact of battery technology, future of energy storage systems and an analysis of battery storage systems for sustainable industrialization.

scholarly journals The energy efficiency of the national economy assessment in terms of investment in green energy

2021 ◽  
Vol 189 (5-6(1)) ◽  
pp. 26-34
Author(s):  
Olim Astanakulov ◽  
◽  
Khurshid Asatullaev ◽  
Nodira Saidaxmedova ◽  
Nilufar Batirova ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Co2 Emissions ◽  
National Economy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Green Energy ◽  
Energy Sources ◽  
Theoretical Point ◽  
The World

Introduction. The study of the development of CO2-neutral economy shows that this concept was only examined from a theoretical point of view in the first phases and has become a priority development area of all countries of the world since 2019. Carbon neutrality means not only a massive conversion of traditional energy into renewable (alternative), but also a complete thermal modernization, a change in the production sector towards energy saving and energy efficiency, innovative changes in wastewater treatment systems and recycling, etc. In other words, an important engine for the development of a CO2-neutral economy in the national economic system is a set of mechanisms and instruments to improve energy efficiency through sustainable innovative development. Theoretical base. For a detailed analysis of the conditions for the development of the energy efficiency of the national economy (Charles, 2019), it is necessary to monitor the state of the energy system and the environmental situation in the country (Huang, 2019), since today almost all countries of the world have reconsidered their priority areas in the development of the energy sector and have actively started to implement reforms for modernization and conversion towards energy production (Khan, 2018). The most promising areas were alternative energy sources and the development of a carbon-neutral economy (Jiahai, 2019). Therefore, the countries of the European Union have agreed on an action plan for energy efficiency for the period 2007-2020 (Kraemer, 2020), which is a 20-20-20 plan - reducing CO2 emissions by 20%, improving energy efficiency by 20% and increasing the share of renewable sources in the energy sector by 20% (Lakshman, 2019). In this phase, Russia plans to achieve 11% of renewable energy sources in the structure of final energy consumption and increase energy efficiency by 9%. At the same time, Russia, which has joined the Paris Climate Agreement (Rehbein, 2020), has set itself the goal of reducing CO2 emissions by 40% by 2030 compared to 1990 (Shu, 2019). The aim of the study is to develop theoretical and methodological tools for assessing the level of energy efficiency of the national economy and its main determinants. Results. The forecast results showed that there is a significant discrepancy between the optimistic and realistic scenarios of the dynamics of changes in the economy’s diverging sub-index of energy efficiency. According to the optimistic scenario, the balancing of the convergent and divergent sub-indices will take more than 10 years (in 2020, the value of the convergent sub-index of energy efficiency of the national economy was 0.84 and the projected value of the divergent sub-index in 2030 was 0.71). Conclusions. The growth of the economy’s integral energy efficiency index is possible if a stable balance is achieved between its convergent and divergent determinants. Calculations have confirmed that the implementation of state policies to ensure the energy efficiency of the economy should primarily focus on increasing divergent determinants of the energy efficiency of the economy. To target the diverging sub-index of the national economy’s energy efficiency, the paper performs a scenario forecast of the vector of its change based on the Brown model, which takes into account the retrospective nature of the distribution of its time series and eliminates fluctuations in random variables.

scholarly journals Efficiency Assessment of Renewable Energy Sources

2019 ◽  
Vol 114 ◽  
pp. 05001 ◽  
Author(s):  
Oleg V. Marchenko ◽  
Sergei V. Solomin
Keyword(s):  
Mathematical Model ◽  
Renewable Energy ◽  
Energy Storage ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Energy Technologies ◽  
Green Certificates ◽  
The Impact

A review of the methods and models used at the ESI SB RAS to assess the effectiveness of renewable energy sources (RES) was carried out. Criteria were formulated and calculation formulas were given for a preliminary assessment of the competitiveness of renewable energy sources as compared to alternative energy supply options. A mathematical model of the world energy system was considered, where renewable energy sources were described by averaged indicators. The model allows for different scenarios of external conditions to explore the prospects for the development of energy technologies, including renewable energy sources. For the analysis of autonomous energy systems with RES, a simulation model was developed so as to treat the processes of production, consumption, and energy storage in their dynamics. The optimization version of the mathematical model eliminates the need for a pre-assignment of the energy flow control algorithm. In this case, it is possible to study systems with the simultaneous presence of several units of energy storage of various types. For the study of renewable energy sources under market conditions, a model was developed so as to take into account the presence of various decision-making hubs, as well as the impact of governmental regulatory bodies in the market. It was shown that the most efficient mechanism for encouraging the development of renewable energy sources is the creation of a market for "green certificates", with the least efficient renewable energy sources to be subsidized.

scholarly journals Electric Rickshaw Charging Stations as Distributed Energy Storages for Integrating Intermittent Renewable Energy Sources: A Case of Bangladesh

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6119
Author(s):  
A.S.M. Mominul Hasan
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Alternative Energy ◽  
Economies Of Scale ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Exploratory Research ◽  
Solar Pv ◽  
Smart Energy Systems

This exploratory research outlines an opportunity for increasing renewable energy share in Bangladesh by using electric rickshaws (e-rickshaws) as a catalyst. The overall objective of this research is to show how to utilise an existing opportunity, such as e-rickshaws, as energy storage options for integrating renewable energy sources. It proposes a grid-connected local energy system considering a battery swapping and charging station (BSCS) for e-rickshaws as a community battery energy storage (CBESS). This system was simulated using the HOMER Pro software. The simulation results show that such systems can help communities significantly reduce their dependency on the national grid by integrating solar PV locally. The proposed BSCS also shows an opportunity for battery demand reduction and circular battery management for electric rickshaws. The research also discusses the economies of scale of the proposed method in Bangladesh, and pathways for implementing microgrids and smart energy systems. The innovative concepts presented in this research will start a policy-level dialogue in Bangladesh for utilising local opportunities to find an alternative energy storage solution and provide momentum to the researchers for further studies.

scholarly journals «GREEN» ENERGY: FEATURES AND PROSPECTS OF DEVELOPMENT IN UKRAINE

2021 ◽  
Author(s):  
Natalka Boichuk ◽  
Mariia Kotsiubailo
Keyword(s):  
Energy Balance ◽  
Alternative Energy ◽  
Power Plants ◽  
New Technologies ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Green Energy ◽  
Energy Sources ◽  
Alternative Energy Sources

The article is devoted to the study of the development of «green» energy in Ukraine. Extraction of non-renewable resources reduces our reserves, and using in the process of production and consumption leads to global warming. Further development of «green» energy will reduce the problems associated with environmental pollution and ensure consumer demand for clean energy at low prices. The article analyzes in details the current state of «green» energy of the country, considers promising opportunities for investment in the industry by Ukrainian and foreign entrepreneurs, which will create and implement new technologies in production, modernize obsolete enterprises. The main problems of using alternative energy sources are highlighted, the prospects for the development of «green» energy are determined, the possibilities and expediency of the transition to ecological types of energy are considered, taking into account the features of the country's economy. The article considers and analyzes the energy balance of the state, which is significantly dominated by the use of nuclear fuel, coal and gas. The use of modern and advanced technologies in the use of renewable energy sources will increase the share of clean energy in the energy balance of the country. The chronology of development of solar power plants in Ukraine is considered. It is noted that due to scientific and technological progress, reduction of prices for solar power plant equipment, «green» tariff capacity of generating alternative energy facilities will continue to grow. The volumes of energy production, which is produced with the help of renewable sources, are analyzed, the number of enterprises that receive income from the sale of electricity at the «green» tariff is considered. A comparative analysis of the size of the «green» tariff in Ukraine and European countries, the prospects for solving existing problems, proposed measures to fully disclose the potential use of alternative energy sources. The positive aspects of the use of alternative energy are analyzed; the role of the country in the process of implementing an effective energy strategy, creating an electricity market and the country's transition to a carbon-neutral economy is analyzed.

scholarly journals Renewable energy sources in future energy balance of the republic of Kazakhstan

2018 ◽  
Vol 58 ◽  
pp. 03006 ◽  
Author(s):  
Bekzhan Mukatov ◽  
Ravil Khabibullin
Keyword(s):  
Renewable Energy ◽  
Development Strategy ◽  
Large Scale ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Basic Principles ◽  
The World ◽  
Main Factors ◽  
The Republic

The article describes the main factors determining the development of renewable energy sources in the world. The assessment of the applicability of foreign RES development strategies to Kazakhstan’s energy system has been made. The main tasks facing Kazakhstan’s energy system with large-scale implementation of renewable energy were formulated. On the basis of the analysis and performed calculations recommendations and basic principles have been made on development strategy of renewable energy sources in the Republic of Kazakhstan.

scholarly journals Modern Trends in the Development of Renewable Energy: the Experience of the EU and Leading Countries of the World

2020 ◽  
pp. 117-133
Author(s):  
L.Hr. Melnyk ◽  
O.N. Derykolenko ◽  
Yu.O. Mazin ◽  
O.I. Matsenko ◽  
V.S. Piven
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Global Economy ◽  
Alternative Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
The World ◽  
The Eu

Energy security and independence is one of the key points in sustainable development. In modern conditions of rapid growth and development of technologies, more and more attention is paid to finding practical solutions for environmentally friendly and inexpensive energy production. For a long time, scientists from various fields of scientific activity around the world have been engaged in the development and use of alternative energy sources. The share of renewable energy sources in the generation of electricity around the world is growing steadily, which indicates an increase in the use of energy obtained from alternative sources, such as, for example, wind and sun. These trends testify to the desire of consumers to abandon the use of fossil energy sources and nuclear power plants as much as possible in order to ensure further sister development. Under the current conditions of the COVID-19 pandemic, the demand for electricity worldwide has decreased, however, as the study shows, this pandemic has not affected the development of renewable energy. The article analyzes modern trends in the development of renewable energy, taking into account the experience of the EU countries and leading countries of the world in this area. As a result, it was concluded that in modern conditions, to achieve sustainable development, transformation processes are needed in such an important area as energy. Various processes in the global economy, which contributed to the intensive development of alternative energy sources, served as a powerful impetus for such changes. Many countries have made significant progress in the development of renewable energy.

scholarly journals Renewable energy and green market development in Russia

2020 ◽  
Vol 207 ◽  
pp. 02009
Author(s):  
Violetta Gassiy ◽  
Vasiliy Stoikov
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Green Energy ◽  
The Arctic ◽  
Energy Sources ◽  
Factors Affecting ◽  
Goods And Services ◽  
Green Market

The paper discusses the possibilities of green energy in improving the economic growth of regions, the development of the green market and its importance in implementing environmental protection policy. The author considers the premises for the formation of a market of renewable energy sources in developed countries, studying world trends, as well as the conditions and factors affecting the development of the ecological market of green goods and services in modern Russia. The paper analyzes legislative initiatives to develop an alternative energy market, taking into account Russia’s accession to the Paris climate agreement. The author gives examples of regional experience in Russia that are already implementing projects for the installation of alternative energy generators, wind and solar. The conditions and factors for the energy capacities development based on renewable sources in the Arctic territories are also considered. The author concludes that the development of renewable energy sources must be considered in the line of the energy strategy of Russia, as well as with issues of digitalization of the industry, microgeneration, the introduction of energy storage systems.

scholarly journals The impact of metal hydride material activation to storage percentage of hydrogen in this material

2020 ◽  
Vol 8 (1) ◽  
pp. 25-31
Author(s):  
Lubica Bednarova ◽  
Tomáš Brestovič ◽  
Natália Jasmisnká ◽  
Marián Lázár ◽  
Romana Dobáková ◽  
...  
Keyword(s):  
Metal Hydride ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Absorption Process ◽  
Absorption Properties ◽  
High Pressure And Temperature ◽  
Alternative Energy Sources ◽  
The World ◽  
The Impact

Currently, a lot of focus is dedicated to metal hydride alloy and options of their utilization. Mankind must solve energy problems due to constant population growth and use of non-renewable energy sources. The World resources of oil are limited and therefore the mankind must start utilizing the alternative energy sources for example hydrogen. Its known that the hydrogen can be stored by metal hydride alloys what it represents the safety way of storage with absence high pressure and temperature. The process by produce of the alloy with good absorption properties the research does not end. Some alloy absorbs the hydrogen after they produce immediately, however a lot of them need the activation for improvement or starting absorption process. Process of activation is very important for achieving the maximum capacity at moderate temperature.

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