scholarly journals Can Energy Be a “Local Product” Again? Hungarian Case Study

2020 ◽  
Vol 12 (3) ◽  
pp. 1118 ◽  
Author(s):  
Kornél Németh ◽  
Zoltán Birkner ◽  
Andrea Katona ◽  
Nikoletta Göllény-Kovács ◽  
Attila Bai ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Technological Development ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Exploratory Research ◽  
Local Product ◽  
Hungarian Case ◽  
The Subject ◽  
Different Levels

The energy sector is undergoing radical changes, and this transition is expected to accelerate all over the world over the coming years. In our recent research, we conducted a questionnaire survey at different levels and asked the experts in the area, the businesses involved in the issue, the operators and maintainers of existing systems, as well as the potential consumers and end users, about their knowledge and intentions related to renewable energy sources. Our empirical research can be divided into three parts. Our exploratory research was based on expert interviews, which show that the growing importance of localization is unquestionable, but the economic, social, and existing infrastructures impose significant barriers to the widespread adoption of certain technologies. Regarding the population survey, we see that the skepticism experienced in previous years has been replaced by a kind of expectation reflecting openness. In addition, it can be stated that in many cases technological development is faster than the possibility of its adaptation. Our gender tests significantly support men’s better knowledge of the subject and the fact that biomass (despite its major importance) is not one of the most known renewable energy sources.

scholarly journals An Adaptive Load Frequency Control for Power Systems with Renewable Energy Sources

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 573
Author(s):  
Mohamed Mokhtar ◽  
Mostafa I. Marei ◽  
Mariam A. Sameh ◽  
Mahmoud A. Attia
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
System Performance ◽  
Frequency Control ◽  
Renewable Energy Sources ◽  
Adaptive Controller ◽  
Load Frequency Control ◽  
Energy Sources ◽  
Load Variations

The frequency of power systems is very sensitive to load variations. Additionally, with the increased penetration of renewable energy sources in electrical grids, stabilizing the system frequency becomes more challenging. Therefore, Load Frequency Control (LFC) is used to keep the frequency within its acceptable limits. In this paper, an adaptive controller is proposed to enhance the system performance under load variations. Moreover, the proposed controller overcomes the disturbances resulting from the natural operation of the renewable energy sources such as Wave Energy Conversion System (WECS) and Photovoltaic (PV) system. The superiority of the proposed controller compared to the classical LFC schemes is that it has auto tuned parameters. The validation of the proposed controller is carried out through four case studies. The first case study is dedicated to a two-area LFC system under load variations. The WECS is considered as a disturbance for the second case study. Moreover, to demonstrate the superiority of the proposed controller, the dynamic performance is compared with previous work based on an optimized controller in the third case study. Finally in the fourth case study, a sensitivity analysis is carried out through parameters variations in the nonlinear PV-thermal hybrid system. The novel application of the adaptive controller into the LFC leads to enhance the system performance under disturbance of different sources of renewable energy. Moreover, a robustness test is presented to validate the reliability of the proposed controller.

scholarly journals Regulatory Framework for Renewable Energy Sources in Ecuador Case Study Province of Manabí

2017 ◽  
Vol 1 (2) ◽  
pp. 29
Author(s):  
Marcos Lenin Dávila Cedeño ◽  
María Gabriela Dávila Arteaga ◽  
Antonio Vázquez Pérez ◽  
Marcos Lenin Dávila Arteaga
Keyword(s):  
Renewable Energy ◽  
Social Relations ◽  
Research Study ◽  
Renewable Energy Sources ◽  
Regulatory Framework ◽  
Energy Sources ◽  
National Study ◽  
Support Measures ◽  
The Social

The purpose of the research is to expose the nature that, in matters of law and social policy, justifies promoting the elaboration and adoption of a regulatory framework that favors the use of renewable energy sources, for the generation of electricity through case analysis in the Province of Manabí. For the accomplishment of the research study has taken into account a brief theoretical analysis on the fundamentals of the regulatory doctrine, where it exposes the conceptual framework of the law and its necessity for the good development of the social relations that derive from the use of the Renewable sources of energy. A study was carried out of the specific regulatory work carried out at the international level, in order to promote the adequate use of renewable energies, as well as a national study presenting an initial vision for the study and establishment of a specific regulatory framework for the case study of the province of Manabí, as well as a group of policies and support measures that could be adopted to promote the integrated use of renewable energy sources and their contribution to the national energy matrix.

scholarly journals Regulatory framework for renewable energy sources in Ecuador case study province of Manabi

2017 ◽  
Vol 1 (2) ◽  
pp. 29-42 ◽  
Author(s):  
Marcos Lenin Davila Cedeno ◽  
Maria Gabriela Davila Arteaga ◽  
Antonio Vazquez Perez ◽  
Marcos Lenin Davila Arteaga
Keyword(s):  
Renewable Energy ◽  
Social Relations ◽  
Research Study ◽  
Renewable Energy Sources ◽  
Regulatory Framework ◽  
Energy Sources ◽  
National Study ◽  
Support Measures ◽  
The Social

The purpose of the research is to expose the nature that, in matters of law and social policy, justifies promoting the elaboration and adoption of a regulatory framework that favors the use of renewable energy sources, for the generation of electricity through case analysis in the Province of Manabí. For the accomplishment of the research study has taken into account a brief theoretical analysis on the fundamentals of the regulatory doctrine, where it exposes the conceptual framework of the law and its necessity for the good development of the social relations that derive from the use of the Renewable sources of energy. A study was carried out of the specific regulatory work carried out at the international level, in order to promote the adequate use of renewable energies, as well as a national study presenting an initial vision for the study and establishment of a specific regulatory framework for the case study of the province of Manabí, as well as a group of policies and support measures that could be adopted to promote the integrated use of renewable energy sources and their contribution to the national energy matrix.

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