scholarly journals Ocean Wind Energy Technologies in Modern Electric Networks: Opportunity and Challenges

Author(s):  
Foad H. Gandoman ◽  
Abdollah Ahmadi ◽  
Shady H.E. Abdel Aleem ◽  
Masoud Ardeshiri ◽  
Ali Esmaeel Nezhad ◽  
...  
2021 ◽  
Vol 1 (1) ◽  
Author(s):  
W. I Abuzend ◽  
W. A El-Osta ◽  
M. A Ekhlat ◽  
E Borass

This paper investigates the costs that can be avoided by using wind energy in the central coastal area of Libya. The investigation of the capacity credit was performed in a previous work. The analysis included Fuel saving, capacity saving and emission reduction (NO, SO2 and CO2) to the atmosphere. The avoided costs were translated into equivalent energy costs of wind energy systems. The evaluation was conducted using the reliability (LOLP) analysis and the contribution of wind system during peak demand to the utility total electricity generation system. The calculations were carried out using WASP (Wien Automatic System Planning Package) for the proposed period of 2009-2019 where wind power installation would increase from 100 MW in 2009 to 500 MW in 2019. The results showed that the avoided costs of wind energy will increase from 2.4 c/kWh in 2009 to 8.6 c/kWh in 2019. The mean value of the avoided costs of wend energy over the 10-year period is 6 c/kWh, which would make wind power economically competitive with conventional power plants in Libya. Further investigations of detailed external costs of all energy systems in the national energy mix, as well as the feed in tariff, are recommended and should be introduced to the national energy sectors in order to promote implementation of wind energy and other renewable energy technologies.


The present scenario of the world reflects the problem of energy crisis it is facing today. Increasing emissions of harmful gases like various byproducts produced by burning fossil fuels and other flue gases are adding to the worsening environmental conditions. Hence, the need of replenishable and non-conventional sources of energy is more than ever before. TENG or triboelectric nanogenerators show great potential and can be at the frontier of renewable energy technologies in the near future. Among the many applications of TENG as a harvester of abundant environmental energy, the Rotary TENG or the R-TENG is a fascinating newly found type of the same. Rotary TENG has the ability of utilizing the energy present in abundant amount in the environment, like wind energy available in the normal environment of living. Wind speed can also be measured with the help of rotary TENG when used as a self powered sensing elements. This growing field of nanotechnology can be further used in the daily lives of people in coming days.


2020 ◽  
Vol 30 (4) ◽  
pp. 1063-1107 ◽  
Author(s):  
Marlene O’Sullivan

Abstract About 20 years ago Klepper (1997) has shown that the life cycle theory, initially introduced for products, can also be applied to the development of industries. The industries that were examined to establish this theory were marked by relatively stable market conditions that are typically driven by innovation. However, research on the transition of the energy system has shown that markets for new energy technologies are driven by political support. As yet an analysis of the industry life cycle of an industry which has developed under politically driven market conditions has not been conducted. Therefore this paper examines the development of the global wind energy industry and the relevance of national markets in a globalized world. The study is founded on a large empirical database. A comparative analysis of various international and national developments was conducted using descriptive statistical methods. The findings show that the global development derives from the sum of individual national developments. It reveals a strong influence of national markets on the development of their respective wind energy industry. Therefore these findings provide relevant insides for the political debate on market support mechanisms in wind energy.


Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8052
Author(s):  
Mirosława Witkowska-Dabrowska ◽  
Natalia Świdyńska ◽  
Agnieszka Napiórkowska-Baryła

The objective of the study was to demonstrate attitudes towards wind energy facilities in the area of the Korsze Commune. The results of the study were processed using structure indices calculated from the respondents’ answers, which were analyzed in terms of social and economic factors. The study revealed that both the NIMBY syndrome and the lack of civic engagement influence attitudes towards renewable energy technologies in rural areas. The NIMBY (“not in my backyard”) term describes negative public attitudes towards proposed development projects. However, some trends towards more pronounced attitudes can be observed, depending on socioeconomic conditions. The research results imply that the measures taken to promote renewable energy technologies should be designed differently depending on the socioeconomic situation of the targeted audience. Young people might be reached via social media appropriate to their age, and through campaigns promoting local investments. For older people, traditional ways of communication can be used, but the information transmitted should include specific benefits for the whole society as well as for individual households. The conducted research revealed that, despite the fact that many authors deny the occurrence of NIMBY syndrome in relation to the wind energy, the NIMBY problem has occurred in the Korsze Commune. The biggest challenge in the survey was the unwillingness of the residents to participate in it, which only confirms the lack of social involvement.


Author(s):  
William Alexander

Abstract Presented here is a low specific mass, free-floating, open ocean, wind energy concept with nominal power capacity to 40 MW, on-board liquid fuels generation, and with operational and survival wave heights to 12 and 40 meters respectively. The estimated specific structural mass of 42 kG/kWp is about 1/3 of the specific mass of much smaller land-based turbines, and less than 6% of the specific structural mass of existing off-shore floating wind turbines. The turbine platform may be operated un-tethered in the open ocean using about 8% of the generated power, on average, for active station keeping. The generated energy may be stored on board via hydrogen electrolysis and liquification for periodic tanker unloading. Reduction of moment loads in the blades and nacelle support structure as well as the unique deep-water foundation result in the low specific mass and high stability.


2015 ◽  
Vol 74 (4) ◽  
Author(s):  
Danial Monsefi Parapari ◽  
Shima Taslim ◽  
Arezou Shafaghat

One of the most important issues in various energy issues is to decrease fossil fuel energy usage and promote renewable energies in developing countries. Iran as a developing country began exploiting renewable resources from the early 1990s. This paper investigates the financial viability of renewable energy technologies in Kerman, which is located in the hot and dry parts of Iran and has a high potential of solar and wind energy. First the potential for solar and wind energy sources are studied and afterwards through two quantitative methods, the cost of this implementation is compared to the benefits gained. The results prove that without a massive financial support by the government, renewable energies would not be economically feasible to be implemented into private households.


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