Paradigmas da energia solar no Brasil e no mundo

2016 ◽  
Vol 20 (1) ◽  
pp. 241
Author(s):  
Pedro Daniel da Cunha Kemerich ◽  
Carlos Eduardo Balestrin Flores ◽  
Willian Fernando de Borba ◽  
Rafael Borth da Silveira ◽  
Jacson Rodrigues França ◽  
...  
Keyword(s):  
Solar Energy ◽  
Renewable Resources ◽  
Gradual Increase ◽  
Renewable Energy Sources ◽  
Consumption Patterns ◽  
Energy Sources ◽  
Isolated Communities ◽  
The Government ◽  
Situation Types ◽  
Financial Issues

With the gradual increase of population and consumption patterns of today's society, debates involving energy issues are becoming more frequent. The energetic basis of Brazil revolves around the dams, since the country has a great water conditions. With the scarcity of non-renewable resources caused by rampant consumption, they turn their eyes to the renewable energy sources, chief among which is solar energy. Thus the present study aimed to list the situation, types, difficulties and expectations of solar energy in Brazil and worldwide. Was identified that the country has a potential grid for generating such energy, but still faces mainly on financial issues for its implementation, which indicates that the government should invest in the sector, which can solve many problems related to access to electricity in isolated communities in the country.

scholarly journals Transformation of the renewable energy structure in Hungary

2020 ◽  
Vol 130 (1) ◽  
pp. 103-112
Author(s):  
Remenyik Bulcsu ◽  
◽  
David Lorant ◽  
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Nuclear Power ◽  
Renewable Energy Sources ◽  
Wind Farms ◽  
Energy Sources ◽  
Energy Structure ◽  
Energy Mix ◽  
The Government ◽  
The Eu

According to the Eurostat database, the percentage of renewable energy sources in the energy mix of the EU is increasing year after year (www.europa.eu/eurostat). In 2018, the values reached 73% in neighboring Austria (48% in Croatia, 42% in Romania, 32% in Slovenia and 21% in Slovakia), Hungary now stands at 8%. Wind energy is the leader in the renewable energy structure of the EU countries (35, 8% in 2018), since the construction of wind farms is prohibited in our country, one of the main objectives of research is to examine our energy structure. Our last position in renewable energy in 2020 prompted the government to develop a new climate strategy (mekh.hu/nemzetienergiastrategia2030). According to the new strategy, Hungary is estimated to be climate and carbon neutral by the end of the decade. Among the alternative sources of energy, solar energy is becoming the favorite, and our article points out why other forms of energy are being overshadowed. Analyzing the changes in the country’s future energy mix, it can be said that it will be based essentially on nuclear power and electricity from Russia’s electricity grid. However, due to the drastic drop in the cost of solar panels in the energy mix of households, solar energy has become a favorite of renewable energy sources. In the climate strategy, the government plans to create 8,000 MW of solar energy by 2050, which will be mainly used in households, municipal buildings, and tourism.

SEPARATE PROBLEMS OF INTERNATIONAL LEGAL REGULATION OF DEVELOPMENT OF ALTERNATIVE ENERGY SOURCES

2018 ◽  
Author(s):  
Ievgenii Shulga ◽  
◽  
Nataliia Shynkaruk ◽  
Nataliia Yashchuk ◽  
◽  
...  
Keyword(s):  
International Organizations ◽  
Energy Security ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Well Being ◽  
Legal Regulation ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
The Government

The article examines topical problems of the role of international organizations in the direction of the development of alternative energy and strengthening of energy security in the world. Considerable attention is paid to the importance of the introduction and development of alternative energy in the context of ensuring environmental human rights and economic well-being. Analyzed the main international legal treaties regulating the reduction of greenhouse gas emissions into the atmosphere and the use of alternative renewable energy sources. The main international governmental and non-governmental organizations in the direction of ensuring environmental and energy security have been identified. Attention is drawn to the need to strengthen the role of these organizations by strengthening the functions of supervision and monitoring to increase the possibility of influencing states that do not comply with the provisions of signed and ratified international conventions. It is concluded that it is necessary to adjust the vector of development of instruments for the protection of environmental rights in the direction of its world globalization. The existing global concept for the development of alternative energy sources requires changes. Given that the environmental problem is universal and, although to one degree or another, it still affects every person, regardless of country or nationality, the obligation to protect the environment must be universal, fulfilled and enforced not only by the government bodies of sovereign states, but also international government organizations. It is noted that the programs and recommendations of international organizations are developed directly for individual states, taking into account their geographical and economic location when choosing the types and methods of developing alternative energy.

Kazakhstan: Assessment of Renewable Energy Support and a Green Economy

2021 ◽  
Vol 12 (3) ◽  
pp. 631
Author(s):  
Sergey BESPALYY
Keyword(s):  
Economic Growth ◽  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
The State ◽  
Green Economy ◽  
Energy Sources ◽  
Environmentally Sustainable ◽  
The Government ◽  
The Impact

The growth of renewable energy sources (RES) shows the desire of the government of Kazakhstan to meet challenges that affect the welfare and development of the state. National targets, government programs, policies influence renewable energy strategies. In the future, renewable energy technologies will act as sources of a green economy and sustainable economic growth. The state policy in the field of energy in Kazakhstan is aimed at improving the conditions for the development and support of renewable energy sources, amendments are being made to provide for the holding of auctions for new RES projects, which replaces the previously existing system of fixed tariffs. It is expected that the costs of traditional power plants for the purchase of renewable energy will skyrocket, provided that the goals in the field of renewable generation are achieved. This article provides an assessment of international experience in supporting renewable energy sources, as well as analyzes the current situation in the development of renewable energy in Kazakhstan and the impact on sustainable development and popularization of the «green» economy. The study shows that by supporting the development of renewable energy sources, economic growth is possible, which is achieved in an environmentally sustainable way.

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 PROSPECTS FOR RENEWABLE ENERGY FOR LOW-RISE BUILDINGS IN CRIMEA

2020 ◽  
pp. 85-93
Author(s):  
N. V. Tsopa ◽  
A. E. Dikarev
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Solar Energy ◽  
Power Supply ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The European Union ◽  
Advantages And Disadvantages ◽  
The World ◽  
The Crimea

in the article provides a comparative analysis of the development of solar energy in the world, in the European Union, in Russia and in Crimea; the advantages and disadvantages of the use of solar energy, the features of the use of renewable energy sources are considered, the use of solar energy in the Crimea is justified; describes the mechanism of a feasibility study for the use of autonomous power supply for low-rise buildings in Crimea.

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 The use of renewable resources is an opportunity and an obligation

2014 ◽  
pp. 13-17
Author(s):  
Zoltán Balla
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Renewable Resources ◽  
Energy Production ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Rational Utilization ◽  
Security Of Supply ◽  
Harmful Substances

The renewable energy sources could be used in energy production, while no or only very slightly emit harmful substances to the environment. The solar, wind, hydropower, biomass and heat rational utilization of land contributes to greenhouse gas emissions.Renewable energy sources also reduces the dependence on fossil fuels, thus contributing to increase security of supply. The creation of local jobs to strengthen the area's population retaining ability.

scholarly journals Atjaunojamo energoresursu tiesiskuma nodrošinājums

2015 ◽  
Vol 1 (1) ◽  
pp. 55-63
Author(s):  
Kristīne Šeļepova
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Electricity Market ◽  
Renewable Resources ◽  
Renewable Energy Sources ◽  
Cost Effective ◽  
Energy Industry ◽  
Energy Sources ◽  
Power Base ◽  
Investment Priority

Raksta mērķis ir apzināt atjaunojamo energoresursu tiesisko regulējumu, tā atbalsta shēmas un problemātiku. Raksta autore skaidro, vai šo tiesību aizsardzības līmenis ir pietiekams, vai ir pieņemtas nepieciešamās materiālo tiesību normas, kā arī vai ir pietiekoši tiesiskie līdzekļi, kas nodrošina šo tiesību aizsardzības ievērošanu, kā arī nākamos soļus energoresursu liberalizācijas posmos. Use of renewable energy increases independence from imported energy, reduces greenhouse gas emissions, as well as increases security of energy supply. However, energy industry concedes that power becomes more vulnerable because of historical paradigms; independent power base is replaced with production from renewable energy sources. This is due to subsidies in the investment priority being cost-effective renewable resources projects. Thus, it is necessary to develop a solution defining how volatile and unpredictable renewable energy sources integrated into the European electricity market can be, while ensuring safe and uninterrupted power supply.

TINJAUAN SINGKAT OPTIMALISASI PEMANFAATAN ENERGI SURYA PADA SEKTOR RUMAH TANGGA

2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Ligan Budi Pratomo ◽  
Nazaruddin Sinaga
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Energy Use ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Utilization ◽  
Fossil Energy ◽  
Household Sector ◽  
The Government

Energy use always increases, especially fossil energy. Through the National Energy Policy, the government continues to strive to increase the role of new and renewable energy sources so as to reduce dependence on fossil energy. Solar power generation is a type of renewable energy generator that capable to convert solar energy to electric energy. The main components of solar power generatios are batteries, solar panels, charger controllers, and inverters.  Solar power generations technology itself is always being developed, such as automatic monitoring and sun tracking systems designed to improve system performance. One of the applications of solar power generations is in the household sector. In this sector consumes 49% of the national electricity energy in 2018. This type of generator is categorized as a roof solar power generations. Based on existing data, there were 1400  roof solar power generations users in September 2019. The development of solar energy utilization for the household sector is very appropriate because it can help achieve renewable energy about 23% in 2025 and 31% in 2050 in the national energy mix.

Reliable Electricity Generation in RES-Based Microgrids

2019 ◽  
pp. 162-187 ◽  
Author(s):  
Valeriy Kharchenko ◽  
Valentin Gusarov ◽  
Vadim Bolshev
Keyword(s):  
Power Supply ◽  
Rural Areas ◽  
Renewable Energy Sources ◽  
Consumption Patterns ◽  
Energy Sources ◽  
Distributed Energy ◽  
Micro Gas Turbine ◽  
Reliable Power Supply ◽  
Criteria For Selection ◽  
Selection Of

Using microgrid generation technologies is proposed in order to organize reliable power supply to rural areas. The concept of microgrid based on RES is considered as one of the realization forms of the distributed energy paradigm. In this chapter, there are the principles of generating complex formation in any given microgrid considering the specifics of the region, consumption patterns, and the potential of renewable energy sources in a given area. The algorithm for meeting the challenges of forming the structure of the microgrid generating structure is shown. The criteria for selection of power generation sources when solving the issue of their inclusion in the microgrid is proposed. The chapter also suggests the design of the micro gas turbine that is able to operate on biogas.

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