scholarly journals USINA HIDRELÉTRICA DE BELO MONTE: UMA VISÃO CRÍTICA DA PRINCIPAL FONTE DE ENERGIA DO PAÍS

2018 ◽  
Vol 10 (Especial) ◽  
pp. 80-86
Author(s):  
Ródney Silvério Costa Júnior ◽  
Ester Alcântara de Carvalho ◽  
Rafael Marcal
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Clean Energy ◽  
Environmental Disaster ◽  
Renewable Sources ◽  
Hydroelectric Energy ◽  
Xingu River ◽  
Break Even Point ◽  
Belo Monte

Renewable energy, alternative energy or clean energy are the three possible names for any energy obtained by renewable sources. Knowing this sources, the focus of this article will be analyze hydroelectric energy, more specifically, the plant of Belo Monte and the controversies around it, that appeared even before its construction. The plant, which is one hundred percent Brazilian, is installed in the interior of Pará, on the Xingu River. The debate that has been going on for years are the serious and negatives impacts that it causes, both social and environmental. Knowing this context, this article it is a criticism about this impacts, which is irreplaceable effect, and being an exploitation of the dilemma between the pree and the conservation of the environment. We conclude that it is necessary to find a break-even point between the two essential strands, to actually enable an evolution that does not cause an environmental disaster.

Risk Requirement for Multi-Hybrid Renewable Energy for Marine System

2013 ◽  
pp. 83-95
Author(s):  
Oladokun Sulaiman Olanrewaju
Keyword(s):  
Renewable Energy ◽  
Environmental Degradation ◽  
Alternative Energy ◽  
Maritime Industry ◽  
Renewable Sources ◽  
Solar Hydrogen ◽  
Marine System ◽  
Selection For ◽  
Hybrid Renewable Energy ◽  
Assessment Requirements

The chapter communicates environmental challenges facing the maritime industry. Efforts to integrate sources of alternative energy with existing systems through holistic proactive risk-based analysis and assessment requirements of associated environmental degradation and mitigation of greenhouse pollution are explored. The chapter also discusses alternative selection for hybridization of conventional power with compactable renewable sources like solar/hydrogen for reliable port powering.

Risk Requirement for Multi-Hybrid Renewable Energy for Marine System

2015 ◽  
pp. 160-173
Author(s):  
Oladokun Sulaiman Olanrewaju
Keyword(s):  
Renewable Energy ◽  
Environmental Degradation ◽  
Alternative Energy ◽  
Maritime Industry ◽  
Renewable Sources ◽  
Solar Hydrogen ◽  
Marine System ◽  
Selection For ◽  
Hybrid Renewable Energy ◽  
Assessment Requirements

The chapter communicates environmental challenges facing the maritime industry. Efforts to integrate sources of alternative energy with existing systems through holistic proactive risk-based analysis and assessment requirements of associated environmental degradation and mitigation of greenhouse pollution are explored. The chapter also discusses alternative selection for hybridization of conventional power with compactable renewable sources like solar/hydrogen for reliable port powering.

Potential of Solar Radiation and Ambient Temperature as an Alternative Energy in Perlis

2015 ◽  
Vol 793 ◽  
pp. 323-327
Author(s):  
Y.M. Irwan ◽  
A.R. Amelia ◽  
M. Irwanto ◽  
M. Fareq ◽  
W.Z. Leow ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Solar Radiation ◽  
Ambient Temperature ◽  
Alternative Energy ◽  
Clean Energy ◽  
Energy System ◽  
Monthly Average ◽  
Productive System ◽  
Clean Energy Source ◽  
Great Development

As a renewable energy and clean energy source, solar power has great development potential. This paper presents the potential of solar radiation and ambient temperature characteristics can be used as alternative energy. All data collected using Davis Vantage Pro2 Weather Station at Centre of Engineering for Renewable Energy (CERE) in Kangar, Perlis. All data consist of daily and monthly average was analyzed. The result shows the average solar radiation and ambient temperature is high in the middle of the year 2013 which is from April to September. These results provide useful information for the design of solar energy system in order to plan the productive system.

scholarly journals Wave Energy Assessment at Valencia Gulf and Comparison of Energy Production of Most Suitable Wave Energy Converters

2020 ◽  
Vol 17 (22) ◽  
pp. 8473
Author(s):  
Raúl Cascajo ◽  
Emilio García ◽  
Eduardo Quiles ◽  
Francisco Morant ◽  
Antonio Correcher
Keyword(s):  
Renewable Energy ◽  
Wave Energy ◽  
Energy Demand ◽  
Alternative Energy ◽  
Average Energy ◽  
Wave Climate ◽  
Energy Output ◽  
Renewable Sources ◽  
Wave Energy Converters ◽  
Energy Converters

Seaports’ energy strategy should rely on the use of renewable energy. Presently, the share of renewable energy used by many of the ports worldwide is negligible. Some initiatives are in the process of implementation to produce some of the energy used by the Port of Valencia, one the largest ports in the Mediterranean Basin. Among these initiatives, a photovoltaic plant with an installed capacity of 5.5 MW is under a tendering process and the assessment studies for the deployment of three to five windmills are close to being finished. However, this is not enough to make it a “zero emissions port” as some of the energy demand would still be covered by fossil fuels. Therefore, we should consider clean alternative energy sources. This article analyses the wave energy resources in the surroundings of the Port of Valencia using a 7-year series of data obtained from numerical modelling (forecast). The spatial distribution of wave power is analysed using data from 3 SIMAR points at Valencia Bay and is compared to the data obtained by the Valencia Buoy I (removed in 2005). The obtained results are used to estimate the power matrices and the average energy output of two wave energy converters suitable to be integrated into the port’s infrastructure. Finally, the wave energy converters’ production is compared to the average amount of energy that is forecast to be obtained from other renewable sources such as solar and wind. Due to the nature of the Gulf’s wave climate (mostly low waves), the main conclusion is that the energy obtainable from the waves in the Valencia Gulf will be in correlation with such climate. However, when dealing with great energy consumers every source of production is worthwhile and further research is needed to optimize the production of energy from renewable sources and its use in an industrial environment such as ports.

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 Assessment of the Progress towards the Management of Renewable Energy Consumption in the Innovativeness Context—A Country Approach

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5064
Author(s):  
Monika Sipa ◽  
Iwona Gorzeń-Mitka
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Clean Energy ◽  
Petroleum Products ◽  
Energy Sources ◽  
Renewable Energy Consumption ◽  
Renewable Sources ◽  
Significant Relationships ◽  
Decisive Action

The fact that European Union (EU) countries have adopted an ambitious plan to achieve zero greenhouse gas emissions by 2050 requires decisive action within the scope of innovation and of the level of energy consumption, especially of the energy from renewable sources. Being directed toward innovation within the scope of renewable energy technology, as well as the proper management of renewable energy consumption, are the main actions aimed at increasing the efficiency of using clean energy, and which also bring the EU closer to the implementation of the assumptions adopted in the European Green Deal. The aim of our study was to assess the progress toward the management of renewable energy consumption in the innovativeness context and the relationship between energy consumption and selected indicators of innovativeness in European Union countries. We present an original ranking assessment of the progress toward the management of renewable energy consumption and identify relationships between the energy consumption of selected energy sources (both renewable and non-renewable) and of selected innovation assessment indicators. The data used to develop the original rating were optimized using the procedures of the MULTIMOORA method, while the relationships between variables were identified through correlation analysis. Our findings provide evidence of significant relationships between the consumption of selected energy sources (in the group of non-renewable sources, e.g., peat and peat products and oil and petroleum products, and in the group of renewable sources, e.g., wind, biofuels, and renewable waste) and of selected indicators of innovation evaluation (e.g., human resources, finance, and support).

scholarly journals LEVEL OF ENERGY SUPPLY OF ANIMAL FARMS FROM USING BIOGAS

2021 ◽  
pp. 100-112
Author(s):  
Mykola Stadnik ◽  
Andrii Shtuts ◽  
Oleksandr Pylypenko
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Energy Production ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Raw Material ◽  
Energy Sources ◽  
Industrial Complex ◽  
Livestock Waste ◽  
Renewable Sources

Ukraine has untapped potential for the production of own energy from renewable sources - processing of livestock waste (animal manure and bird droppings) with the formation of biogas, which can then be used to produce electricity, heat or fuel - analogues of natural gas (methane) (in particular, for own needs of farms). Currently in Ukraine, the generation of large amounts of waste on industrial farms is an environmental problem that needs to be addressed. Recycling livestock waste to generate biogas will partially solve environmental problems, as well as benefit from decentralized renewable energy production or fuel production. The role of renewable energy sources in energy production is constantly growing and now the issue of increasing the share of renewable sources in the energy balance of each country is relevant. In the supply of primary energy, the share of renewable energy accounts for 13% worldwide. Of these, biomass accounts for 10%, or 258 million tons per year, ie in the world biomass provides the largest share of energy supply from renewable sources. Domestic agricultural enterprises are significant consumers of fuel and energy resources, so they face the objective need to use alternative energy sources, including biofuels and the introduction of innovative energy-saving technologies. Biogas production is an efficient and attractive investment technology, due to the presence of significant raw material potential, favorable climatic and other. However, the level of introduction of this type of energy in the agro-industrial complex is insufficient, which is due to a number of issues, including insufficient level of practical recommendations for choosing power generators, their number, modes of operation taking into account daily energy consumption schedule, load and optimal efficiency. installations while providing autonomous power supply of the enterprise. This paper determines the level of energy supply of livestock farms through the use of biogas plants as a source of energy used for livestock waste.

Renewable Energy Sources Management and Role of Ecological Parks

2019 ◽  
pp. 220-228
Author(s):  
Biljana Stojan Ilic
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Modern Technology ◽  
The State ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Industrial Parks

On the global level, governments are leading the national policy for development of modern technology and alternative energy resources. The tendencies of sustainable development are reflected in the realization of using renewable energy resources that contribute to a more diversified and more efficient use of clean energy. The aim of this chapter is to represent adequate responses to the efficient management at the state level that created all necessary conditions for sustainable development and energy efficiency using renewable energy resources in countries of European Union. Legal regulations, energy policy, short, medium and long-term strategy with a stimulating policy, can contribute for achieving adequate results in terms of sustainable development. The aims of this policy would be reflected in the development of eco-industrial parks and clean energy that contribute development of new companies, employment, on the state budget and local government levels.

Renewable Energy Sources Management and Role of Ecological Parks

2021 ◽  
pp. 193-202
Author(s):  
Biljana Stojan Ilic
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Modern Technology ◽  
The State ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Industrial Parks

On the global level, governments are leading the national policy for development of modern technology and alternative energy resources. The tendencies of sustainable development are reflected in the realization of using renewable energy resources that contribute to a more diversified and more efficient use of clean energy. The aim of this chapter is to represent adequate responses to the efficient management at the state level that created all necessary conditions for sustainable development and energy efficiency using renewable energy resources in countries of European Union. Legal regulations, energy policy, short, medium and long-term strategy with a stimulating policy, can contribute for achieving adequate results in terms of sustainable development. The aims of this policy would be reflected in the development of eco-industrial parks and clean energy that contribute development of new companies, employment, on the state budget and local government levels.

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