Preface

2008 ◽  
Vol 80 (10) ◽  
pp. iv
Author(s):  
Sergey Varfolomeev ◽  
Oleg Shevaleevskiy
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
South Korea ◽  
Energy Conversion ◽  
Alternative Energy ◽  
Energy Sources ◽  
Applied Chemistry ◽  
Nanoscale Systems ◽  
Russian Academy Of Sciences ◽  
Academy Of Sciences

Since the apparition of the coming energy crises and increased awareness of climate change, various avenues are being explored to replace fossil fuels, with renewable energy from solar power and biomass sources as the most promising. In the last decade, the development of advanced molecular materials and nanotechnologies has initiated a new set of ideas that can dramatically improve energy conversion efficiency and reduce prices of alternative energy sources. It was therefore timely to launch a new initiative as the organization of the interdisciplinary International Conference "Molecular and Nanoscale Systems for Energy Conversion" (MEC-2007), devoted to new research trends in different areas of alternative energetic sources. This event was the first scientific meeting in Russia dealing with the general problems and future challenges in renewable energy conversion.The Conference was held on 1-3 October 2007 in Moscow at the Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, under the sponsorship of the International Union of Pure and Applied Chemistry (IUPAC), the Russian Academy of Sciences, Lomonosov Moscow State University, and the Russian Foundation for Basic Research. The Conference featured 11 oral sessions and a general poster session, which was held throughout the entire duration of the event.Over 200 researchers from 11 countries, including 90 students, participated in the event. The presentations of the latest discoveries included 85 contributed papers and 12 plenary and 9 keynote lectures covering 4 topics: (i) advanced systems for photovoltaics, (ii) new types of fuel cells, (iii) biofuels, and (iv) molecular and nanoscale systems for energy conversion. All submitted abstracts were reviewed by the International Program Committee.In this issue of Pure and Applied Chemistry we introduce a selection of papers based on plenary and keynote lectures delivered at MEC-2007. This volume contains: a discussion of light intensity, asone of the most important factors influencing solar energy conversion (S. D. Varfolomeev, Russia); aviewpoint on future directions in photovoltaics as a new challenge for chemical physics (O. Shevaleevskiy, Russia); a description of new Cu(In,Ga)Se2 (CIGS) solar cells (B. T. Ahn, South Korea); a description of metal cluster-like materials for the molecular oxygen reduction reaction (N. Alonso-Vante, France); an application of biogas and microbial fuel cell technologies for anaerobicdigestion of wastes (S. V. Kalyuzhnyi, Russia); a description of light energy conversion mechanism indual fluorophoreñnitroxide molecules (G. I. Likhtenshtein, Israel); an overview of dangling-bond (DB)defect behavior in nanocrystalline silicon-based films for photovoltaics (K. S. Lim, South Korea); andan approach to the design of low-bandgap polymer solar cells (D. Yu. Paraschuk, Russia). All of thecontributions exemplify the participants' broad range of interests and characterize the new challengesin the area of renewable energy sources.Sergey Varfolomeev and Oleg ShevaleevskiyConference Editors

scholarly journals International online seminar "Artificial Societies and Information Technologies"

2021 ◽  
Vol 16 (3) ◽  
pp. 0
Author(s):  
Tatiana Konkova
Keyword(s):  
South Korea ◽  
Information Technologies ◽  
Agent Modeling ◽  
Russian Academy Of Sciences ◽  
Artificial Societies ◽  
And Mathematics ◽  
Academy Of Sciences ◽  
Online Seminar

In 2020, the team of the Central Economics and Mathematics Institute of the Russian Academy of Sciences launched a regular international online seminar "Artificial Societies and Information Technologies". The seminar was attended by leading researchers in the field of agent modeling from Brazil, South Korea, India, China, France, Germany and other countries.

scholarly journals PERSPECTIVES OF USING ALTERNATIVE ENERGY SOURCES IN UKRAINE IN THE CONTEXT OF INCREASING ENERGY EFFICIENCY IN EUROPE

10.23856/2705 ◽  
2018 ◽  
Vol 27 (2) ◽  
pp. 44-51
Author(s):  
Lidiya Shergina ◽  
Alla Zhemba ◽  
Nataliia Revutska ◽  
Yulia Burma
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Energy Efficiency Improvement ◽  
Energy Independence ◽  
Ecological Type ◽  
Global Energy Consumption

The article is devoted to the issues of the functioning and development of energy in each country, caused mainly by the economic expediency of renewable energy and the requirements of energy independence. Also, the article examines the importance of replacing traditional fuels with alternative energy sources. The international experience of the countries in the field of efficient use of available natural resources of the fuel and energy complex and enhancement of the potential of the energy sector have been analyzed. A number of common characteristics and directions of energy efficiency improvement for European countries are highlighted. Alternative types of energy and measures necessary for their implementation have been offered. The potential resources of renewable energy sources have been analyzed. The article is devoted to the use of economical and ecological type of fuel - biofuel for Ukraine. On the basis of the analysis of the situation on the energy market, renewable energy is examine, which plays a compensatory role in global energy consumption in the conditions of growing exhaustion of non-renewable sources.

scholarly journals DEVELOPMENT OF SOLAR ENERGY IN UKRAINE IN THE CONTEXT OF THE TRANSITION TO THE CARBON-NEUTRAL ECONOMY

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
T. Pimonenko ◽  
O. Lyulyov ◽  
N. Letunovska ◽  
O. Lytvynenko ◽  
A. Nazarenko
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Energy Sources ◽  
Advantages And Disadvantages ◽  
Alternative Energy Sources ◽  
Research And Innovation ◽  
Leading Position

The article aims to study current trends in the use of solar energy in Ukraine and the world as one of the main directions of decarbonization of the national economy. The authors systematize the prospects, advantages and disadvantages of the development of renewable energy sources. They conducted a comparative analysis of the "efficiency" of solar energy in some countries and Ukraine. The authors determined that the leading position in terms of the share of energy consumed from renewable sources is occupied by countries with developed economies due to the availability of effective motivational mechanisms. From the experience of EU countries, the authors concluded that renewable energy sources form a prerequisite for obtaining additional socio-economic and environmental effects. In the presence of favorable market conditions, renewable energy sources can increase the level of energy security in the country and its energy independence. The article analyzes the legislation of Ukraine on stimulating the development of alternative energy. The authors proposed two opposed ways of further developing solar energy in Ukraine. In particular, the country can implement methods of using alternative energy, which developed countries have successfully implemented. Another area involves increasing research and innovation in implementing, using, maintaining, and utilizing energy-generating devices from alternative energy sources. Despite the polarity of the proposed directions for further development of renewable energy, in both cases, the state policy on attracting investment and promoting the use of energy from alternative energy sources is crucial. In addition, the authors noted the benefits for society from the development and implementation of alternative energy sources. The scaling up and promotion of energy production technologies from alternative sources can reduce carbon emissions, which has been an urgent problem globally.

scholarly journals TECHNO-ECONOMIC ANALYSIS OF AN OFF-GRID HYBRID ENERGY SYSTEM WITH HOMER PRO

2021 ◽  
Vol 5 (3) ◽  
pp. 56-61
Author(s):  
Ahmet Erhan AKAN
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Economic Analysis ◽  
Energy Conversion ◽  
Renewable Energy Sources ◽  
Lithium Ion ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Energy Potential ◽  
Economic Point

The decrease in fossil-based energy sources and increasing environmental problems increase the tendency to renewable energy sources day by day. The potential of renewable energy sources differs according to the region where the energy will be produced. For this reason, it is crucial to conduct a good feasibility study that deals with the selected systems from a technical and economic point of view before making an investment decision on energy conversion systems based on renewable energy sources. In this study, the most suitable equipment and capacities were investigated by examining the techno-economic analysis of a hybrid system created with wind-solar renewable energies for a detached house, which is considered off-grid, in a rural area of Tekirdağ province (40o58.7ı N, 27o30.7ı E). Investigations were carried out using the HOMER Pro (Hybrid Optimization Model for Electric Renewable) program. The wind and solar energy potential of Tekirdağ province were obtained from the NASA renewable energy resources database added to the HOMER Pro program. The daily electricity requirement of the sample house was chosen as 11.27 kWh, and the current peak electrical load was chosen as 2.39 kW. A wind turbine is connected to the AC busbars, solar collectors and battery group connected to the DC busbars, and a converter that converts energy between AC and DC busbars in the energy conversion system. In order to determine the optimum capacities of the system elements, 27486 different simulations were performed by HOMER Pro. The selection of the most suitable system among these was determined according to the lowest net present cost (NPC) value. In addition, the energy production capacities that will occur in the case of different wind speeds were also investigated. Accordingly, the system to be installed with a solar panel with a capacity of 6.25 kW, PV-MPPT with a capacity of 1 kW, 2 wind turbines with a capacity of 1 kW, 8 Lithium-ion batteries with a capacity of 6V-167 Ah, and a converter with a capacity of 2.5 kW has been determined will generate electrical energy of 5433 kWh per year. In addition, it has been determined that 61.8% of this produced energy will be obtained from solar energy and 38.2% from wind energy, and the simple payback period of the investment will be 14 years. It is thought that this study will provide valuable information to researchers and investors.

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 Determining the sequence and backbone structure of “semi-statistical” copolymers as donor–acceptor polymers in organic solar cells

2020 ◽  
Vol 4 (4) ◽  
pp. 2026-2034
Author(s):  
Samuel S. Lawton ◽  
Daniel Warr ◽  
Luís M. A. Perdigão ◽  
Yujing Chang ◽  
Agnieszka Pron ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Donor Acceptor ◽  
Backbone Structure ◽  
Significant Attention

Organic photovoltaics (OPVs) are attracting significant attention due to the growing demand for economically viable and renewable energy sources.

scholarly journals Factors of impact on the evolution of electricity markets from renewable energy sources: a comparison between Romania and Germany

2015 ◽  
Vol 10 (1) ◽  
pp. 34-52 ◽  
Author(s):  
Roxana Clodnițchi ◽  
Alexandra Cătălina Chinie
Keyword(s):  
Renewable Energy ◽  
Electricity Markets ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Business Community ◽  
Energy Sources ◽  
Future Market ◽  
The European Union ◽  
Renewable Sources ◽  
Alternative Energy Sources

Abstract When talking about the future of Europe we also think about alternative energy sources. It is up to national governments to decide how to encourage investments in this field in order to contribute to the 20-20-20 EU-objective. Until the network delivery cost for electricity produced from renewable sources will be comparable to the cost for energy from traditional sources ("grid parity"), the development of businesses and markets for electricity from renewable sources is going to be driven by support schemes. The state of the grids and the facility of grid-access constitute another two key factors influencing the development of this sector. Last but not least, the question of policy consistency is raised within the business community. Over the past years some support schemes have proved to be more effective than others, and grid conditions have also evolved. Policies supporting the development of renewables also changed at EU-level and at national levels. Based on statistics, scientific literature and the feedback of the business community, this study aims to analyse the development of renewable energy sectors in the European Union by comparing Germany’s and Romania’s experience. Also this study describes the current and expected future market situation in these countries relying on data gained from questionnaires and interviews with specialists in the renewable field.

scholarly journals Clean Energy for Cooling and Heating with Ground Source Heat Pumps

2019 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Heat Pumps ◽  
Hot Water ◽  
Energy Sources ◽  
Ground Source Heat Pumps ◽  
Heating And Cooling ◽  
Ground Source

In the recent attempts to stimulate alternative energy sources for heating and cooling of buildings, emphasise has been put on utilisation of the ambient energy from ground source heat pump systems (GSHPs) and other renewable energy sources. Exploitation of renewable energy sources and particularly ground heat in buildings can significantly contribute towards reducing dependency on fossil fuels. The study was carried out at the Energy Research Institute (ERI), between September 2016 and November 2017. This paper highlights the potential energy saving that could be achieved through use of ground energy source. The main concept of this technology is that it uses the lower temperature of the ground (approximately <32°C), which remains relatively stable throughout the year, to provide space heating, cooling and domestic hot water inside the building area. The purpose of this study, however, is to examine the means of reducing of energy consumption in buildings, identifying GSHPs as an environmental friendly technology able to provide efficient utilisation of energy in the buildings sector, promoting the use of GSHPs applications as an optimum means of heating and cooling, and presenting typical applications and recent advances of the DX GSHPs. It is concluded that the direct expansion of GSHP are extendable to more comprehensive applications combined with the ground heat exchanger in foundation piles and the seasonal thermal energy storage from solar thermal collectors. This study highlights the energy problem and the possible saving that can be achieved through the use of the GSHP systems. This article discusses the principle of the ground source energy, varieties of GSHPs, and various developments.

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.

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