Use Of Alternative Energy Sources Research Articles

Investigation of a novel Defatted Spent Coffee Ground (DSCG)-supported Ni catalyst for fuel cell and supercapacitor applications

With the increase in energy demand, a material that can be used in fuel cell applications has been developed for both energy storage and the use of alternative energy sources to fossil fuels. In this study, a new Defatted Spent Coffee Ground (DSCG)-based electrode material was synthesized for two different application areas. A new electrocatalyst synthesis was carried out by subjecting DSCG to chemical activation and carbonization processes. The glycerol electrooxidation performances of the catalysts synthesized at 10–50 % Ni loading rates were investigated by CV measurements. 30 % Ni-DSCG catalyst exhibited the highest catalytic activity with 3.290 mA/cm2.As a result of the electrochemical measurements, 30 % Ni-DSCG catalyst with the best catalytic performance was used as the supercapacitor electrode material. The electrochemical performances of the produced supercapacitor electrodes were tested at room temperature using galvanostatic charge-discharge (GCD), Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques, and the capacity and stability of the electrodes were calculated as a result of the findings. In the calculations, the energy and power density of the 30 % Ni-DSCG supercapacitor electrode were calculated as 22.897 Wh kg−1, 841.114 W kg−1, respectively. The supercapacitor electrode capacitance was found to be 50.48 F/g.Its cyclic capacity was found to be 90 %. It showed that the DSCG-based synthesized electrocatalyst could be a good option for energy storage technology as EDLC electrode material and fuel cell applications as anode catalyst due to its good conductivity, superior cyclic stability, environmental friendliness and low cost.

Pricing electricity from blue hydrogen to mitigate the energy rebound effect: A case study in agriculture and livestock

As the world's second largest producer of natural gas, Iran relies heavily on natural gas for 70% of its energy needs. There are, however, challenges associated with energy supply in remote regions attached to the gas pipeline network, particularly during the cold season when fuel oil is required for heating and energy provisioning. To address this issue, this research proposes the use of alternative energy sources, such as hydrogen, for non-residential energy consumption, including agriculture and livestock. A key objective of this study is to develop an optimization model for the generation of electricity from hydrogen resources, as well as formulate a robust strategy to assist electricity producers in maximizing their profits. Using this model, producers are able to set prices in accordance with their risk tolerance and present them to the market, thus mitigating price fluctuations. In the targeted sectors, the results indicate that appropriate pricing models can prevent rebound effects. Specifically, the implementation of this model can reduce natural gas consumption by up to 20% and fuel oil usage by 15% during peak seasons. Additionally, the optimal pricing strategy can lead to a 10% reduction in greenhouse gas emissions. The results of this research provide stable and reliable solutions to the energy supply challenges in these regions, thus making the energy market more resilient and environmentally friendly.

Results of experimental development of a laboratory water distillation installation based on a heat pump and a photovoltaic panel

Modern technologies and the continuous rise in water consumption require efficient and environmentally friendly methods of its extraction. According to the energy development strategy of the Russian Federation until 2035, the use of alternative energy sources in industry is a priority task for production. The use of renewable resources to produce distilled water for the needs of enterprises is becoming increasingly important. The innovative technology of a laboratory installation, combining water distillation using a heat pump and a photovoltaic panel, allows not only to obtain purified water, but also to heat the coolant before chemical purification. To create a laboratory stand, it is necessary to study the operating principles of the installation, divide the device into units: the main stand and the vacuum distiller, then model a three-dimensional image of each part of the complex in the SolidWorks software package. Based on the obtained models, a functional diagram of the complex is developed to obtain a coolant of the given parameters, and an algorithm is compiled for predicting the temperature of the heated water in the heat pump. The obtained installation test results are processed, and compared with theoretical data from tables of refrigerant properties, and a conclusion is drawn. The technology for producing purified water is aimed at replacing imported technologies and using renewable energy sources. The development of technologies for producing clean water is a priority for the development of the Russian energy sector. The results obtained indicate the potential of the laboratory installation for use in various areas where a reliable and environmentally friendly supply of distilled water is required, for example, in coastal areas for industrial facilities or agricultural enterprises.

Perceived Effect of Fuel Price Hike on Farming Households in Imo State

The study assessed the perceived effect of fuel price hike among farming households in Imo State. The study described the socio-economic characteristics of farming households in Imo State; ascertained farming households’ awareness of fuel price hike; identified the perceived causes of fuel price hike; ascertained the perceived effect of fuel price hike on farming activities among farming households in Imo State and identified the coping strategies used among farming households to cushion the effect of fuel price hike in Imo State. A multi-stage sampling was adopted in selecting 120 farming households for the study. Primary data were used for the study using a structured questionnaire. Data analysis employed percentages, means, frequencies and mean score analysis. The result on the awareness of the effect of fuel price hike among farming household showed that all the farmers were aware (100%). farming households perceived fuel subsidy removal (x̄=3.7), instability in government policies (x̄ =3.5), high cost of importation of refined fuel (x̄ =3.4), Non-functional of local refineries (x̄ =3.3) among others as the causes of fuel price hike. Farming households perceived increased cost of transportation for farm inputs (x̄ =3.9), Increased cost of production/farming activities like ploughing, clearing etc(x̄=3.9) Increased price of farm produce (x̄ =4.0), Increased food prices (x̄=4.0), decreased agricultural productivity (x̄=3.4), Limited access to agricultural machinery and equipment,( x̄ =3.3), increased in transportation of farm produce to the market (x̄ =3.4) as the effects of fuel price hike. The highest ranking coping strategies used by farming households were trekking some distances to reduce the cost of transportation (Ranked 1st), Minimising spending habits due to fuel price increase (2nd), Explored the use of alternative energy sources e.g solar panels for irrigation, charcoal, firewood (3rd). Explore the possibility of collective purchasing or bulk buying with others to reduce individual costs (4th) and skipping meals (5th). Educational level, household size and access to credit were the significant socioeconomic variables influencing farming households’ perceived effect of fuel price hike. The study therefore recommends that Nigeria's crude oil should be refined domestically so that the importation of refined fuel can be banned which will reduce the cost of refining and pump price.

Contribution of Fuel Wood Income from Natural Forests to Household Economy in Delanta District, Northeastern Ethiopia

For Ethiopia’s rural homes, particularly those in the Delanta district, fuelwood is the primary energy source. This suggests that the impact of fuel wood from the forest to family energy use or income is significant. The goal of the current study was to estimate how much annual fuel wood harvested from forests contributes to household consumption and monetary income. 96% of the forest’s income comes from fuelwood. In the study area, it contributes 2,013,539 Birr, or 33%, of all family income. 703,014 ETB, or 23.8% of the total subsistence income, and 1,310,525 ETB, or 40.65% of the total cash income of the tested households, are both covered by fuelwood from the forest. Both socioeconomic and physical characteristics close to the users influenced how dependent a household was on fuelwood income from the forest. The data obtained from randomly selected households by survey method have been subjected to multiple regression analysis and obtained that households’ reliance on fuelwood income from the forest was significantly influenced by factors such as age, educational level, number of trees owned, distance to forest, distance to market, and nonforest income, all of which had a negative and significant impact. The only significant factor that significantly and positively influences reliance on fuelwood income from the forest is the number of family members. Therefore, preserving a natural forest through the use of alternative energy sources, such as electricity, or encouraging a plantation on one’s own property is a potential discipline for mandating climate change prevention.

The role of institutional diversity in sustainable water use: Performance comparison among water user organizations

AbstractThe aim of this study was to compare the performance of water user organizations (WUOs) in the agricultural sector in terms of their managerial efficiency. A survey was carried out across the study area to evaluate 67 WUOs, including irrigation cooperatives, municipalities, village legal entities (VLEs) and water user associations (WUAs). The findings were then used to create a management performance index. It has been determined that municipalities excel in terms of physical performance, irrigation cooperatives in enterprise and social performance and WUAs in institutional and investment performance. The general management performance index revealed that the most successful WUOs in the Konya closed basin were WUAs. Therefore, proposals have been put forward to begin institutionalization processes in other institutions to attain the successful institutionalization in WUAs. Additionally, the shift towards prepaid systems is recommended to mitigate collection problems, while water should be priced according to the full cost method. Finally, supporting the use of alternative energy sources for irrigation is crucial.

Application of alternative sources of energy resources: Economic aspects

The topic of research related to alternative energy sources is relevant, since with the constant growth of the population and the development of industry around the world, the demand for energy continues to increase, at a time when traditional energy sources (coal, oil, and gas) are limited and subject to exhaustion. Alternative energy sources offer new opportunities to meet the growing demand for energy, they can provide more stable prices and reduce dependence on energy imports, and do not emit greenhouse gases or pollute the environment. The purpose of this paper is to study the economic viability and potential of alternative energy sources in order to assess their impact on the economy and identify opportunities and challenges. Among the methods used, the analytical method, the statistical method, the functional method, the system analysis method, the deduction method, the synthesis method and the comparison method were applied. The study analysed financial mechanisms that promote the development of alternative energy sources, such as subsidies, tax incentives and investments in renewable energy sources. The effectiveness of these mechanisms and their impact on the development of the industry was studied. Special attention was paid to the economic risks associated with alternative energy sources, including the instability of prices for equipment and technologies, as well as changes in legislation and regulation. The current state and dynamics of the market for alternative energy sources were analysed, as well as the growth potential and the share of alternative energy sources in the overall energy system were determined. The positive impact of the use of alternative energy sources on the economy and society is assessed. The results obtained are of practical value and can be used to make decisions related to the use of alternative energy sources and improve this process at a new level.

Prospects for the introduction of a green economy in the agricultural sector of Ukraine for the next 10 years

The relevance of the study is due to the deterioration of the environment and the low level of application of green technologies in the agricultural sector of Ukraine. The aim was to outline the current problems for farmers in the use of green farming methods and to find solutions. The study assessed the level of use of certain green technologies in agricultural production in Ukraine. The main results obtained in this work are: determining Ukraine’s place in the Green Future Index ranking in various areas during 2021-2023 and comparing it with Iceland, Finland, and Norway; identifying areas of green technologies that need to be developed in Ukraine during martial law and after the war (precision and organic farming, the introduction of biotechnology to create genetically modified organisms and the transition to alternative energy sources). The study of the dependence of farmers’ propensity to use green technologies on the size of farming confirms its undeniable presence. The analysis of foreign experience in precision agriculture allowed formulating recommendations for foreign companies entering the Ukrainian market to promote the use of precision agriculture in Ukraine. The findings on the growing electricity shortage helped to justify the further use of alternative energy sources in the context of the conflict. A study of the negative impact of the hostilities on Ukrainian land allowed classifying such types of impact and developing measures to restore the soil. The assessment of the use of technologies in agriculture helped to identify areas for the introduction of a green economy in the agricultural sector in Ukraine, which will help to increase agricultural yields without harming the environment and increase its competitiveness. The results and conclusions have practical implications for the Government in developing agricultural policy and for farmers in managing their farms

Parameters Affecting the Explosion Characteristics of Hybrid Mixtures Arising from the Use of Alternative Energy Sources

Explosions of hybrid mixtures are an interesting theoretical and experimental problem in explosion sciences, because they combine the physicochemical properties of flammable gases and dusts. A hybrid mixture is composed of at least two substances in two or more states. The influence of the common presence of flammable gas on the explosiveness parameters of the combustible dust itself is proven. In this study, we present the effect of higher initiation temperatures, different initial sources of initiation with different energies, and the effect of the volume of explosion chambers on the explosions of hybrid mixtures arising from the use of alternative energy sources. The experiments were carried out in 20 L and 1.00 m3 explosion chambers (according to EN 14034-1+A1:2011–EN 14034-4+A1:2011). The accredited method of the Energy Research Centre, VSB-TU Ostrava, for tests was used. The goal is to approximate the behaviour of these systems under different initiation conditions so that it is possible to avoid excessively conservative or overly optimistic results, which then affect the determination of explosion parameters for practical use. It was found that the volume of the explosion chambers in combination with the used initiation source has a fundamental influence on the course of the explosion characteristics.

ТЕХНИКО-ЭКОНОМИЧЕСКОЕ ОБОСНОВАНИЕ УСТАНОВКИ СОЛНЕЧНЫХ КОЛЛЕКТОРОВ ДЛЯ ИНДИВИДУАЛЬНЫХ ДОМОВ

The hot water supply system of Perm uses solar energy. The aim of the study was to substantiate the economic efficiency of solar collectors and determine their payback period taking into account climatic conditions, equipment cost and economic criteria. The proposed technical solutions of solar energy using were analyzed and compared with electric heating. During the study, the authors defined the required minimum solar collector area for a household (taking into account the hot water standard for Perm) as a functional dependence of the amount of incoming solar insolation on the amount of using heat energy. We evaluated domestic and imported solar collectors on the required parameters. The value of the reduction in the payment for electric energy was taken as the income for the households. The economic efficiency was calculated based on the forecasted average electricity tariff, taking into account inflation from 2 to 16 %. The payback of a solar hot water heating system depends primarily on the cost of purchase, installation of equipment and on the discount rate. The practical significance is to substantiate the economic efficiency of solar collectors for consumers. The methodology and results of the study can be used in private residential construction and in justification of the use of alternative energy sources for Russian regions with low insolation.

Legal security of the use of alternative energy sources in the field of electricity and heat supply

The article is devoted to the establishment of step-by-step processes of formation and development of legislation in the field of obtaining electricity and heat supply from alternative energy sources, taking into account the trends of legal regulation in the countries of the European Union. A comparative analysis of measures to stimulate renewable energy in Ukraine and the European Union has been carried out. The article indicates objective obstacles to the development of alternative energy sources in the field of electricity and heat supply. Prospects and problems of the development of electricity and heat energy production from renewable sources through the prism current legal regulation are given. The compensation mechanism of the «green fariff», the electiveness of its introduction, the state of influence on the economy as a whole in the state are analyzed. The positions of well-known scientists regarding the state of development of renewable energy in determining the prospects for replacing the use of traditional energy sources in the field of electricity and heat supply are characterized. The reasons for the interest in alternative energy sources are indicated, with the simultaneous presentation of one’s own vision of the positive and negative aspects of the spread of such energy sources. The article examines the current state and prospects for the development of heat supply from alternative energy sources, in particular, from biomass, including the advantages and disadvantages of this resource. The reasoning is given that for the successful implementation of the use of renewable energy sources instead of traditional ones in the field of electricity and heat supply, it is necessary to strengthen the renewal and development of legal support in this direction. Formed, based on the research, the state, potential, trends and prospects of alternative energy and heat supply, developed recommendations for improving the institutional and functional support of this institute. The article contains suggestions for improving the institute for obtaining electricity and thermal energy from alternative sources.

The BREEAM, the LEED and the DGNB certifications as an aspect of sustainable development

Some of the most significant problems of industrialised countries are increasing consumerism, the growing demand for more and more energy and other natural resources, and the depletion of non-renewable sources. The visible consequences are environmental pollution and global warming. To address these issues, there is growing pressure on the use of alternative energy sources, the use of natural resources and the introduction of new technologies. The use of multi-criteria building certification systems, which evaluate their performance, is becoming increasingly common in the building industry. The BREEAM, the LEED, and the DGNB are among the most popular methods for assessing sustainable architecture, and they project management tools. The main task of the article was to define and describe the impact of documents related to sustainable development certificates on contemporary design and living and working conditions, as well as to demonstrate the relationship between the quality of architecture and environmental protection. Another goal is to indicate how dynamically the number of certificates issued in Poland is increasing. The study used the necessary research methods: analysis and criticism of applicable documents and literature, as well as an intuitive method based on personal experience. The scope of the work includes a discussion of the most frequently obtained certificates: the BREEAM, the LEED, and the DGNB, the achievements of which prove the use of solutions conducive to sustainable development.

PROSPECTS FOR THE DEVELOPMENT OF THE BIOENERGY INDUSTRY OF UKRAINE IN THE CONTEXT OF EUROPEAN INTEGRATION

Purpose. The purpose of the article is to develop a set of measures for the development of the domestic bioenergy industry in the context of Ukraine's European integration aspirations. Methodology of research. The theoretical and methodological basis of the study was made up of the fundamental provisions of the ecological and economic foundations of the development of renewable energy and the results of research by domestic researchers in the field of bioenergy. In the preparation of the publication, a number of general scientific methods were used: theoretical generalization – for researching the prerequisites for the establishment and development of bioenergy production; analysis and synthesis – to identify the degree of influence of factors that hinder the effective development of bioenergy in Ukraine; management modeling – to develop a set of measures aimed at overcoming difficulties in the industry; logical – to justify the benefits that citizens, enterprises, regions and the state receive in the event of the spread of effective bioenergy production. Findings. The growth in demand for renewable energy sources is substantiated. The advantages of bioenergy production over other areas of renewable energy are analyzed. The prerequisites for the effective development of bioenergy in the conditions of Ukraine are revealed. The advantages that the country's economy can receive if the industry is supported are studied and the best experience of bioenergy production in the countries of the world is studied. The main factors restraining the development of bioenergy in Ukraine are analyzed. A set of measures is summarized, the implementation of which will increase the efficiency of bioenergy production in the country. The need to take into account European experience for the formation of an effective market in the field of bioenergy is emphasized. Originality. The theory of transition from observing the principles of energy supply in a quantitative aspect to energy supply for sustainable development of the economy, which is based on the use of alternative energy sources, in particular biofuel, has gained further development. Practical value. The implementation of the set of measures proposed in the publication will allow to significantly increase the efficiency of bioenergy production in Ukraine, which will contribute to solving the problem of energy security of the state in general. Key words: renewable energy, bioenergy, biomass, biofuel, biogas, bioenergy potential, energy market, European integration, energy security, energy saving, sustainable development.

A systems approach to hazard identification for solar-powered and wave-propelled unmanned surface vehicle

Decarbonization is a trend in the maritime industry and may include the use of alternative energy sources on ships. At the same time, autonomous ships are under development. In the future, the two technologies may be combined. The objective of this study is to identify possible hazards related to the operation of autonomous vessels using green energy sources. An extended and holistic Systems-Theoretic Process Analysis (STPA) based approach is proposed, where both safety and security is considered. Changes in level of autonomy during operation are considered, and an extension of the STPA method is proposed to highlight the interaction between the system and external energy source. A solar-powered and wave-propelled unmanned surface vehicle is analysed. The results show that mission performance may be affected by both safety and security issues, and that considering influences from the environment and the autonomous functionalities of the system together, contributes to identifying hazards. The results are compared to operational experience from multiple field campaigns. The case study focuses on a relatively simple autonomous vehicle, but some functionalities may be shared with Maritime Autonomous Surface Ships (MASS). Hence, implications for utilisation of alternative energy sources on MASS, and effects on risks, are discussed.

Realizing Low-carbon and Climate-resilient Development on Aquaculture

Aquaculture production supports food security, and it is an important commodity for Indonesia's exports. Climate change determines the sustainability of aquaculture production. Low-carbon development is an effort to control the impact of climate change from a mitigation standpoint, while climate-resilience development is an adaptation. In order to realize sustainable aquaculture in a broad and long dimension and in line with the Sustainable Development Goals (SDGs), it is necessary to develop a low-carbon and climate-resilience development strategy. A descriptive analysis was carried out on a review of published literature to develop the concept of low-carbon and climate-resilience development in aquaculture. The keywords used in the literature search are the impact of climate change on aquaculture, low-carbon development, climate-resilience development, and achievement of the SDGs in aquaculture. The research that has been published mostly discusses the potential Green House Gas emissions (GHG) from aquaculture activities, is still very limited and explains efforts to mitigate and adapt aquaculture to climate change. Efficiency and use of alternative energy sources, increased productivity, feed efficiency and effectiveness, effluent management, disease control and water quality management, and superior seeds can be applied in low-carbon emission development. Meanwhile, climate-resilience development that can be implemented includes the implementation of Integrated Multi-Tropical Aquaculture (IMTA) and Regional Integrated Multi-Tropical Aquaculture (RIMTA), closed systems, and Recirculating Aquaculture Systems (RAS), as well as ponds that integrate mangroves.

Scenario Analysis of the Prospects for the Use of Alternative Fuels for Road Transport in Russia

The article examines the economic and environmental consequences for the Russian Federation that may be caused by the transition of road transport to natural gas fuel and electricity. According to strategic planning documents, public authorities are pursuing the policy aimed at converting a significant share of road transport to natural gas fuel. As singled out, this policy is mainly motivated by the issues of limiting emissions of harmful substances into the atmosphere from the combustion of oil products. In addition to a positive impact on the environment, this transformation should have a positive impact on the economy, since the use of alternative energy sources reduces transport costs, and construction of the necessary related infrastructure will create additional growth points for the economy.The objective of the study described in the article is to investigate the economic and environmental effects for the Russian Federation from the transfer of road transport to natural gas fuel.Main economic indicators analysed comprise subsidies that are necessary to create conditions for development of the relevant market, changes in budget revenues from the mineral extraction tax and excise duty on oil products, as well as additional gross value added due to multiplier effects in the economy. The study of environmental effects consists in assessing the reduction of emissions of greenhouse gases and particulate matter into the atmosphere.The analysis of the effects for the Russian economy from the transfer of road transport to alternative energy sources has shown that due to the multiplier effect, for the period up to 2035, gross value added will increase by 3,6 trillion rubles, and investments in the necessary infrastructure will amount to about 2,7 trillion rubles, which is about 13 % of the projected investment in the road sector. Due to the use of gas motor fuel and electric vehicles, by 2035 СО2 (carbon dioxide) emissions will be reduced by 11 million tons annually, which represents only 0,5 % of nationwide emissions. This means that the transfer of road transport to alternative energy sources is not effective enough from the point of view of the existing motivation, and the motivation must be changed in favour of positive economic effects.

Kopátsy’ ideas along the dimensions of the ESG framework

The study examines the forward-thinking and innovative ideas of Sándor Kopátsy that align well with the pillars of the increasingly prevalent ESG (Environmental, Social, Governance) framework, anticipating their time. During the research, document analysis was employed, incorporating not only Kopátsy's already published studies but also, uniquely, the unpublished manuscripts found in the digital archive of the Sándor Kopátsy Knowledge Center, as well. Kopátsy's starting point was his close relationship to nature, asserting that nature does exist for humanity. He claimed, that in a society harmonized with nature, people can be more productive, ethical, and achieve a higher cultural level. It is crutial, thus quality workforce, even without abundant capital or raw materials, can position a country at the forefront, parallel to the conscientious and realistically executed use of alternative energy sources. The research was conducted within the framework of the Kopátsy Research Program 2023 Fall.

АНАЛИЗ СОВРЕМЕННЫХ ЭКОНОМИЧЕСКИ ЦЕЛЕСООБРАЗНЫХ ПОДХОДОВ В ПРОЕКТИРОВАНИИ СИСТЕМ ТЕПЛОСНАБЖЕНИЯ

The work is devoted to modern, energy-efficient, environmentally friendly, economically feasible methods used in the design of heat supply systems. The purpose of this article is to analyze new technologies and approaches that can significantly improve the efficiency of the heat supply system, reduce energy costs and minimize the negative impact on the environment. This goal was achieved through an extensive analysis of modern approaches in the design of heat supply systems through the use of alternative energy sources, including solar, wind, and geothermal energy. The most important result is the consideration of the use of smart technologies and control systems to optimize the operation of the heating system. Smart meters, monitoring and control systems allow you to effectively control energy consumption, prevent leaks and emergency situations, and optimize heat distribution in the network. The significance of the results obtained lies in determining the possibility of implementing an energy efficiency program, as well as reducing costs and minimizing harm to the environment. The practical implementation of these approaches will make it possible to create a sustainable and environmentally friendly heat supply system for our cities and settlements.

ЭМПИРИЧЕСКИЙ АНАЛИЗ ВЛИЯНИЯ ЭКОНОМИЧЕСКОЙ ДЕЯТЕЛЬНОСТИ НА СОСТОЯНИЕ ОКРУЖАЮЩЕЙ СРЕДЫ: ПРИМЕР СТРАН БРИКС

The research is devoted to the nexus between economic development and environmental pollution in the BRICS countries. Within the framework of the study, the hypothesis of the Kuznets environmental curve was not verified, but Russia and China have the greatest potential to reach the income level where economic growth is able to "take care" of the environment. Applying the advanced econometric method of Driscoll–Krayy panel data analysis, we found that GDP per capita growth, industrialization and urbanization are the factors most responsible for environmental degradation in the BRICS countries, while the inflow of foreign direct investment, developed financial sector, active integration into the global space, environmental policy and the use of alternative energy sources contribute to environmental improvement. As for the policy implications, the BRICS countries should direct their efforts to create the most favourable conditions for FDI, deepen the financial sector, intensify environmental policy and develop the alternative energy sector.

Драйвери сталого розвитку країн в умовах глобалізації

The article substantiates the drivers of sustainable development of countries in the context of globalization, namely: the development of alternative energy, low-carbon economy, circular economy. It is argued that with the establishment of the model of sustainable development in the world practice, the issue of a significant reduction in the segment of energy-intensive types of global production and a decrease in the scale of consumption of energy resources is of particular importance. It is substantiated that in order to disseminate an energy-efficient model of economic development on a global scale, it is necessary to form an active State policies of the countries of the world by creating economic, administrative, social and infrastructural conditions, eliminating State subsidies to environmentally harmful industries, using market incentives, increasing public procurement in energy-saving industries, along with stimulation of their investment financing. The prospects for the development of the world energy sector until 2030 are outlined. The synchronization of Ukraine with ENTSO-E, the European network of electricity transmission system operators, is examined. It is found that synchronization with ENTSO-E is a step towards expanding the opportunities and prospects for attracting investment in the energy sector of Ukraine. Recommendations on finding effective ways of transition of countries’ economies to the use of alternative energy sources, low-carbon development and application of the principles of circular economy (the conception of combining linear production lines into a closed cycle) are provided. It is substantiated that the transition to sustainable low-carbon development can be successful due to the implementation of the global energy conversion of the economy.