scholarly journals CURRENT STATE OF ENERGY EFFICIENCY IN THE WORLD AND IN UKRAINE

Author(s):  
Vadym Paziuk ◽  
Oleksii Tokarchuk ◽  
Dina Tokarchuk

Energy resources are of great importance for human life. Today, the intensive spread of renewable energy sources (RES) in the world is the result of complex political, social, economic and natural resources that have been developing over the past 40-50 years. These processes are associated with different levels and dynamics of economic development of states, an increase in energy consumption, an uneven distribution of natural resources, an increase in the world's population and climatic changes. The energy-saving way of economic development presupposes a significant reduction per unit of product consumption of fuel, electricity and heat at the final stage of their consumption; improvement of production, transportation, transformation and storage of energy resources; improving the structure of the energy balance in the direction of replacing scarce and expensive energy resources in it with cheap and affordable renewable energy sources. The growth of production and consumption is inextricably linked with the development of society, throughout its development it is fighting to increase its energy balance. The struggle for energy, for its source, for the discovery of new ways of transforming and using it is going on continuously and at an ever-increasing pace. The development of renewable energy sources in the world is associated with limited energy resources. From renewable energy sources, the use of solar energy, wind energy, water energy, environmental energy, geothermal energy, biomass energy has been obtained. Most of all in Ukraine, biomass energy is used to obtain thermal energy. Also, the use of environmental energy has been developed due to the introduction of heat pumps in heating systems of buildings, in the technological processes of drying and cooling.

Author(s):  
Nia Febrianti ◽  
Firilia Filiana ◽  
Primadina Hasanah

Biomass energy sources have several advantages, such as being used as a renewable energy source so that the energy source from biomass can provide a sustainable energy source. One of the first steps to determine the potential of energy resources that can be developed into renewable energy sources is by collecting data. The data collection carried out in this study focuses more on the biomass found in Balikpapan. The biomass potential in Balikpapan needs to be known by collecting and classifying the biomass data based on products from agriculture and plantations. The data that has been collected from secondary data and from surveys are then mapped to see the greatest biomass potential found in Balikpapan. The largest percentage of crop yields per year is found in North Balikpapan Subdistrict, which is 31% compared to five other sub-districts. The potential of biomass from Balikpapan City's natural resources, which the greatest amount of harvest, is the cassava food plant in North Balikpapan sub-district of 7,259 tons / year. In the type of fruit, snakefruit (salak) has the highest number of yields per year, which is about32,945 tons / year. The potential for waste from food plants, cassava waste originating from tree trunks, is 5,807.2 tons / year, and cassava skin is 1,088.8 tons / year


2015 ◽  
Vol 1 (1) ◽  
pp. 47-52
Author(s):  
Taras Mykytyn

The 20st century was the beginning of an intensive use of renewable energy sources, including bioenergy. The rational using of natural resources in the world has been investigated.The long period comparison of the variables acreage in Ukraine and Polissia Region has been done. The analysis of land use in Rivne region has been ordered. The agricultural lands are involved for growing crops, particularly in Polisskiy. The characteristic of natural conditions of Polissia Region of Ukraine has been done.The wetlands low capacity of land not used in Polissia region and gradually become forests. A growing energy willow on Polissia Region has been ordered. For willow natural conditions are most favorable in this region. The characteristic of energy willow biomass has been investigated. The technology of growing of energy willow has been done. The experimental plantations of willow give a high yield of biomass. The efficiency calculation of growing energy willow has been done. The model of growing energy willow has been done.


Author(s):  
Suudan Gökçe Gök

The energy sector holds a crucial strategic importance for development and its sustainability. However, the energy reserves in Turkey are insufficient for the increasing energy demand. For this reason, the need for alternative energy sources has emerged. The fact that fossil fuels used in energy production will be exhausted and their damaging effects on the environment has made it inevitable for the world to use renewable energy. In Turkey, the following are the main energy sources used in electricity production: hydraulic sources, brown coal, natural gas, coal and fuel oil. The use of renewable energy sources in electricity production has shown a considerable development in the world over the past few decades. However, these energy resources have yet to be exploited to any large extent in Turkey. In this chapter, the range of potential renewable energy resources available for electricity production in Turkey will be analyzed in order to determine the necessary technical substructure to make these renewable energy resources more attractive.


2016 ◽  
Vol 23 (1) ◽  
pp. 21-35
Author(s):  
Janusz S. Szmyd

Abstract The development of civilisation is linked inextricably with growing demand for electricity. Thus, the still-rapid increase in the level of utilisation of natural resources, including fossil fuels, leaves it more and more urgent that conventional energy technologies and the potential of the renewable energy sources be made subject to re-evaluation. It is estimated that last 200 years have seen use made of more than 50% of the available natural resources. Equally, if economic forecasts prove accurate, for at least several more decades, oil, natural gas and coal will go on being the basic primary energy sources. The alternative solution represented by nuclear energy remains a cause of considerable public concern, while the potential for use to be made of renewable energy sources is seen to be very much dependent on local environmental conditions. For this reason, it is necessary to emphasise the impact of research that focuses on the further sharpening-up of energy efficiency, as well as actions aimed at increasing society’s awareness of the relevant issues. The history of recent centuries has shown that rapid economic and social transformation followed on from the industrial and technological revolutions, which is to say revolutions made possible by the development of power-supply technologies. While the 19th century was “the age of steam” or of coal, and the 20th century the era of oil and gas, the question now concerns the name that will at some point come to be associated with the 21st century. In this paper, the subjects of discussion are primary energy consumption and energy resources, though three international projects on the global scale are also presented, i.e. ITER, Hydrates and DESERTEC. These projects demonstrate new scientific and technical possibilities, though it is unlikely that commercialisation would prove feasible before 2050. Research should thus be focused on raising energy efficiency. The development of high-efficiency technologies that reinforce energy security is presented, with it being assumed that these new high-efficiency technologies are capable of being applied globally in the near future.


Author(s):  
M. V. Debiev

The article provides an overview of the current state of energy in the world and in Russia, which focuses on the development of renewable energy sources (RES). An analysis is made of the trend in the production and consumption of energy resources, as well as an assessment of the use of renewable energy in Russia. Incentives for the development of renewable energy sources with the characteristics available in the world are determined. Conclusions are drawn about the importance of developing this industry both in Russia and in the Chechen Republic, as one of its regions. An assessment is given of the development of wind and solar energy in Russia. The current power supply structure of the Chechen Republic is considered, where the indicators of maximum electric power, consumed electric power, and also electric power generation of the republic are given. The analysis of the possibility of using wind and solar energy resources, as well as small hydropower of the Chechen Republic. Options for the development and effective use of renewable energy sources are considered, taking into account the fact that the use of energy resources based on modern innovative technologies, the introduction of new promising alternative sources, and the search for ways to stimulate the use of renewable energy sources, where it is supposed to organize and introduce a tariff policy, is one of the main tasks of energy development which give a complete systemic idea of the scale of the problem of transferring the energy system to innovative rails. Some options are proposed for the most expedient development of the energy system of the Chechen Republic, the construction of small pilot plants using renewable energy sources, with the goal of actual (experimental) confirmation of the predicted calculated values, as well as the gradual mass introduction of plants using renewable energy sources in the private sector with the creation of the necessary tariff conditions for use and construction installations on an industrial scale within the framework of energy private or public companies. Priority tasks have been set for the prospective development of the republic’s energy sector by introducing renewable energy sources.


Author(s):  
Suudan Gökçe Gök

The energy sector holds a crucial strategic importance for development and its sustainability. However, the energy reserves in Turkey are insufficient for the increasing energy demand. For this reason, the need for alternative energy sources has emerged. The fact that fossil fuels used in energy production will be exhausted and their damaging effects on the environment has made it inevitable for the world to use renewable energy. In Turkey, the following are the main energy sources used in electricity production: hydraulic sources, brown coal, natural gas, coal and fuel oil. The use of renewable energy sources in electricity production has shown a considerable development in the world over the past few decades. However, these energy resources have yet to be exploited to any large extent in Turkey. In this chapter, the range of potential renewable energy resources available for electricity production in Turkey will be analyzed in order to determine the necessary technical substructure to make these renewable energy resources more attractive.


Author(s):  
Vladislav D. Kozhevin ◽  

In recent years there has been a rapid development of renewable energy sources, which, however, has a number of individual regional restrictions, represented by non–price factors: the lack of transparency of institutions, the lack of sufficient technologies for integrating renewable energy into the network, lobbying the interests of owners of traditional generation, etc. The article analyzes the factors that affect the consumption of renewable energy in three clusters of countries.


Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3952
Author(s):  
Iwona Bąk ◽  
Anna Spoz ◽  
Magdalena Zioło ◽  
Marek Dylewski

The energy transformation towards renewable energy sources in the conditions of climate change and the accompanying climate risk is a priority for all countries in the world. However, the degree of advancement of activities in this area varies significantly between countries, which is the result of different activities for renewable energy sources in individual countries. The aim of this article is to determine the trends of changes in the area of the use of renewable energy sources in EU countries. The study uses TMD (taxonomic measure of development) methods and dynamic classification, which allowed to distinguish typological groups of objects with similar dynamics of the studied phenomenon. The EU 28 countries were analyzed. Statistics (Eurostat database) are provided for the period 2004–2019. As a result of the research, it was found that the Scandinavian countries and the countries of Western Europe were characterized by the highest stability in terms of the use of renewable energy sources over time. These countries also recorded the smallest increases in TMD. On the other hand, the unfavorable situation in terms of stability was observed mainly in the countries of Southern Europe.


2016 ◽  
Vol 13 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Bahrampour Hamid ◽  
Askari Mohammad Bagher ◽  
Bahrampour Mohammad Reza ◽  
Bahrampour Mahboubeh

Purpose This paper aims to identify and introduce areas in Kerman with a very high potential for produce energy from renewable energy. In this paper, with studying renewable energy resources of the world and Iran, and with the introduction of renewable energy resources in Kerman Province and its counties as a proper supplier of energy in Iran and regions. At the end of this discussion, it is seen that the positive impact of clean energies on the economy, the environment and the health of the region and the country and the potential of the Kerman Province in this rare energy place are considered well. Design methodology/approach To study the energy consumption in Iran and based on universal reports, this area is the largest renewable energy production region in Iran. Findings Currently, electricity used in Kerman is nearly 2,000 MW, while the capacity of production is 1,500 MW which is almost the share of renewable energy in electricity production rate is zero. With regard to industrial development plans in Kerman Province, 5,000 MW of electricity will be needed in the near future, so the province will face an energy crisis. Iran is also a developing country and economy; agriculture and the production of this country is extremely dependent on energy and electricity, and it seems that using renewable energy sources is a way to prevent an energy crisis in the country. Originality/value This paper introduces the Kerman Province and examines the potential of this province as a massive source of energy in Iran and the world. Specific qualifications of this region include the climate variability, existing water dams, suitable areas for utilization of biomass and the high potential that this area has for the development of geothermal energy. These qualifications all contribute to make this region a hub for great production of energy from renewable energy sources in Iran.


2020 ◽  
Vol 28 (2) ◽  
pp. 315-333
Author(s):  
Olga V. Shuvalova ◽  
Maria-Joana Stoyanova

Europe is transforming its energy balance and increasing the use of local renewable energy sources. Russia's economy depends on the export of fossil (non-renewable) energy resources. About half of the country's energy resources are exported, primarily to European countries. A change in the fuel and energy balance of European countries, as the main consumer of Russian energy resources, will affect the Russian economy. Therefore, Russia urgently needs to know the state of alternative energy in Europe. The purpose of this article is to assess the growth rate of the share of innovative alternative energy sources in the energy balance of Germany and Denmark, as leading countries. The background for the implementation of energy policy in the field of alternative energy is different. First of all, these are countries with developed economies. They need a reliable, uninterrupted supply of energy sources. The Danish government was the first among European countries to evaluate the potential of alternative energy and began to develop it. Denmark is the first country in Europe to use wind energy to generate electricity. In 1991, the first offshore wind energy plant in Europe appeared in Denmark. Germany started the construction of wind power parks only in 2008. Nevertheless, today Germany, along with China and the United States, is among the top three world leaders in terms of wind power capacity, and also has become one of the world leaders in terms of the total installed capacity of solar panels. In absolute terms, characterizing the development of alternative energy, Germany is the world leader, in relative terms - Denmark. Germanys economy is many times larger than Denmarks. Therefore, Germany cannot rebuild the fuel structure of its economy as fast as Denmark. The Danish leadership has set ambitious goals for the development of alternative energy. In 2050, 100% of the energy supplied to end consumers will be generated from renewable sources. Germany cannot rebuild its economy with this fast pace. In Germany in 2050, the share of renewable energy in final energy consumption will be 60%. Germany, unlike Denmark, initially relied not on the development of alternative energy, but on the development of nuclear energy. However, through consistent energy policies, it has become a world leader in alternative energy use. When Germany began to implement energy policy, it already had a prototype - Denmark. But then, as the study showed, the country chose its own path. And then Germany and Denmark developed alternative energy in different ways. Nowadays the international cooperation has a great importance. Germany and Denmark collaborate in regional and transregional projects in terms of renewable energy sources. North Sea Wind Power Hub is a successful example of their work together. The experience of Germany and Denmark has shown that alternative energy development programs do not exist by themselves. The alternative energy development program is only part of several other related programs. Among them are programs on the rejection of the use of nuclear energy (in relation to Germany), measures to increase the energy efficiency of economies, construction of infrastructure, changes in the organizational structure of energy, etc. Nowadays, many countries in the world pursue an energy policy in the field of renewable energy. In 2009, Russia also committed to increase the share of alternative energy sources to 4.5% by 2020. In the implementation of this policy, it is necessary to take into account the experience of Western countries. The difficulties faced by countries in the new energy sector do not allow us to talk about a decrease in their dependence on energy imports.


Sign in / Sign up

Export Citation Format

Share Document