scholarly journals Alternative Energy Policy for Mitigating the Asynchrony of the Wind-Power Industry’s Supply Chain in Brazil

Author(s):  
Milton M. Herrera ◽  
Isaac Dyner ◽  
Federico Cosenz
Author(s):  
Milton M. Herrera ◽  
Mauricio Uriona ◽  
Isaac Dyner

Previous studies have shown that poor performance of energy supply chains arises from incorrectly interpret feedback information and time delays between decisions and actions in energy policy. This paper assesses alternatives to improve performance of wind-power supply chain with transmission constraints that contribute to enhance response capacity of the wind industry to changes of energy policy. In order to test these alternatives, this paper used a simulation model with system dynamics (SD), taking as case study Brazil. The simulation model represents the main time lags and fluctuations that exist in the wind-power supply chain. Four simulation scenarios were proposed to evaluate changes in auction-based policy in wind industry of Brazil. The results are related to operational capacity, inventory levels and response capacity. This paper provides an analysis of different scenarios that contribute with synchronization of auctions policy, including transmission capacity constraints.


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.


1986 ◽  
Vol 25 (4) ◽  
pp. 631-647
Author(s):  
Peter Pintz

After the first oil-price shock of 1973, a search for new energy policies was started all over the world. Changing one fundamental concept - that relating to the general development of energy supply and consumption - was, however, out of the question. The pre-1973 trend of development was maintained. The energy elasticities did not change. The old forecasts were still held to be valid and were considered now, as earlier, to be the objectives which a successful energy policy had to achieve. This was considered a prerequisite for high growth rates of GNP and improvements in living conditions, and energy consumption was regarded as an indicator of the level of economic development. Therefore, the focus was shifted to an enlargement of the supply of indigenous energy resources as a substitute for imported energy, so that dependence on foreign countries could be minimized.


Author(s):  
Almas Heshmati ◽  
Shahrouz Abolhosseini

This chapter reviews relevant literature on the current state and effectiveness of developing renewable energy on energy security in general, and on energy security in the European Union (EU) in particular. The chapter elaborates on primary energy import sources, possible alternatives, and how energy security is affected by the sources of supply. It also gives an analysis of the effects of the Ukrainian crisis, the isolation of Iran on diversification sources, and on European energy security. It examines EU’s energy policy, analyses the best motivation for a new energy policy direction within Europe, and suggests alternative solutions for enhanced energy supply security. The aim is to suggest suitable solutions for energy security in Europe through energy supply diversification. Supply diversification includes alternative energy corridors for reducing dependency on Russia as a supplier and enhancing the power generated by renewable energy sources under the European Union 2020 strategy.


JURNAL ELTEK ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 57
Author(s):  
Mira Esculenta Martawati

Pembangkit energi alternatif Saat ini semakin meningkat dikarenakan  berkaitan dengan semakin banyaknya kebutuhan pasar akan energi. Ada beberapa pembangkit energi alternatif yang sudah mulai dibangun antara lain pembangkit listrik tenaga angin. Pada umumnya pembangkit listrik tenaga angin didirikan di daerah pesisir pantai atau di daerah yang  miliki yang menghasilkan banyak angin. Dalam membangun pembangkit listrik tenaga angin dibutuhkan banyak perhitungan yang matang supaya didapatkan desain  yang sesederhana mungkin dengan biaya yang seminim mungkin akan tetapi dapat menghasilkan daya yang maksimal, sehingga dapat mengurangi pemborosan energi dan dapat memanfaatkan tenaga angin yang tersedia pada alam sekitarnya semaksimal mungkin dan dapat dimanfaatkan oleh masyarakat sekitar. Pembuatan simulasi turbin angin dapat dilakukan dengan menggunakan simulasi simulink pada matlab. Hasil dari simulasi dan analisa data adalah terdapat perbedaan  pengaruh antara variasi pitch angle dan kecepatan turbin terhadap daya keluaran dan nilai tegangan , karena nilai  p-value < 0,05 dan membuktikan bahwa H0 dinyatakan ditolak. Hasil dari penelitian ini menunjukkan bahwa semakin besar pitch angle maka kecepatan turbin terhadap daya keluaran dan tegangan yang dihasilkan juga akan semakin besar   Alternative energy generation is increasing as it relates to the growing number of energy market needs. There are several alternative energy plants that have begun to be built, such as wind power plants. In general, wind power plants are established in coastal areas or in areas that have produced a lot of wind. In building wind power plants needed a lot of mature calculations so that the design is as simple as possible with a minimal cost possible but can produce maximum power, so as to reduce energy waste and can utilize the wind power available in the surrounding nature as much as possible and can be utilized by the surrounding community. The manufacture of simulation of wind turbine can be done using simulink simulation in MATLAB. The result of the simulation and data analysis is the difference in influence between the variation of pitch angle and the speed of the turbine to the output power and the voltage value, due to the P-value value of < 0.05 and proving that the H0 declared rejected. The result of this study shows that the greater the pitch angle then the turbine speed to the output power and the resulting voltage will also be greater


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