scholarly journals Towards a Future Scenario for Offshore Wind Energy in Chile: Breaking the Paradigm

2021 ◽  
Vol 13 (13) ◽  
pp. 7013
Author(s):  
Cristian Mattar ◽  
Felipe Cabello-Españon ◽  
Nicolas G. Alonso-de-Linaje
Keyword(s):  
Wind Energy ◽  
Electricity Consumption ◽  
Legal Framework ◽  
Offshore Wind ◽  
Climate Projections ◽  
Potential Candidate ◽  
Offshore Wind Energy ◽  
Chilean Coast ◽  
Marine Energy ◽  
Cost Of Energy

Offshore wind energy continues to be a potential candidate for meeting the electricity consumption needs of the Chilean population for decades to come. However, the Chilean energy market is skeptical about exploiting offshore marine energy. At present, there are no offshore marine energy farms. This is probably attributable to the current legal framework, payback period, initial costs of inversions, and future wind speed trends. This work aims to break this paradigm by advancing knowledge regarding the main issues concerning offshore marine energy in Chile. To this end, we estimated the Levelized Cost of Energy (LCOE) from 2000 to 2054 using the CMIP RCP 4.5 and 8.5 climate projections. These projections were based on the estimations for a 608 MW offshore wind project located along the Chilean coast. A comprehensive analysis of the legal framework for implementing offshore marine energy is also presented. The results show that the LCOE ranges between 24 USD/MWh and 2000 USD/MWh. Up to 80% of the study area presents favorable results. Future climate scenarios did not affect the project’s economic viability and notably indicated two major zones with low interannual variability. In terms of legal frameworks, there is a gap in a Chilean trans-ministerial law that ends up causing several processes to be duplicated. Further research is needed to reduce the uncertainties associated with offshore wind energy generation on the Chilean coast. This study aims to further knowledge related to both the opportunities and challenges associated with offshore wind.

scholarly journals Offshore wind energy – South Africa’s untapped resource

2020 ◽  
Vol 31 (4) ◽  
pp. 26-42
Author(s):  
Gordon Rae ◽  
Gareth Erfort
Keyword(s):  
South Africa ◽  
Wind Energy ◽  
South African ◽  
Electricity Generation ◽  
Wind Farm ◽  
Energy Resource ◽  
Electricity Consumption ◽  
Offshore Wind ◽  
Offshore Wind Energy ◽  
Multi Criteria Evaluation

In the context of the Anthropocene, the decoupling of carbon emissions from electricity generation is critical. South Africa has an ageing coal power fleet, which will gradually be decommissioned over the next 30 years. This creates substantial opportunity for a just transition towards a future energy mix with a high renewable energy penetration. Offshore wind technology is a clean electricity generation alternative that presents great power security and decarbonisation opportunity for South Africa. This study estimated the offshore wind energy resource available within South Africa’s exclusive economic zone (EEZ), using a geographic information system methodology. The available resource was estimated under four developmental scenarios. This study revealed that South Africa has an annual offshore wind energy production potential of 44.52 TWh at ocean depths of less than 50 m (Scenario 1) and 2 387.08 TWh at depths less than 1 000 m (Scenario 2). Furthermore, a GIS-based multi-criteria evaluation was conducted to determine the most suitable locations for offshore wind farm development within the South African EEZ. The following suitable offshore wind development regions were identified: Richards Bay, KwaDukuza, Durban, and Struis Bay. Based on South Africa’s annual electricity consumption of 297.8 TWh in 2018, OWE could theoretically supply approximately 15% and 800% of South Africa’s annual electricity demand with offshore wind development Scenario 1 and 2 respectively.

scholarly journals Optimal Design of Rated Wind Speed and Rotor Radius to Minimizing the Cost of Energy for Offshore Wind Turbines

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2728 ◽  
Author(s):  
Longfu Luo ◽  
Xiaofeng Zhang ◽  
Dongran Song ◽  
Weiyi Tang ◽  
Jian Yang ◽  
...  
Keyword(s):  
Wind Speed ◽  
Optimal Design ◽  
Wind Energy ◽  
Wind Turbines ◽  
Offshore Wind ◽  
Design Parameters ◽  
Offshore Wind Energy ◽  
Offshore Wind Turbines ◽  
Cost Of Energy ◽  
The Cost

As onshore wind energy has depleted, the utilization of offshore wind energy has gradually played an important role in globally meeting growing green energy demands. However, the cost of energy (COE) for offshore wind energy is very high compared to the onshore one. To minimize the COE, implementing optimal design of offshore turbines is an effective way, but the relevant studies are lacking. This study proposes a method to minimize the COE of offshore wind turbines, in which two design parameters, including the rated wind speed and rotor radius are optimally designed. Through this study, the relation among the COE and the two design parameters is explored. To this end, based on the power-coefficient power curve model, the annual energy production (AEP) model is designed as a function of the rated wind speed and the Weibull distribution parameters. On the other hand, the detailed cost model of offshore turbines developed by the National Renewable Energy Laboratory is formulated as a function of the rated wind speed and the rotor radius. Then, the COE is formulated as the ratio of the total cost and the AEP. Following that, an iterative method is proposed to search the minimal COE which corresponds to the optimal rated wind speed and rotor radius. Finally, the proposed method has been applied to the wind classes of USA, and some useful findings have been obtained.

scholarly journals The decarbonisation of Galicia using renewable marine energy

2021 ◽  
Vol 19 ◽  
pp. 115-120
Author(s):  
L. Castro-Santos ◽  
◽  
A. Filgueira-Vizoso ◽  
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Wave Energy ◽  
Economic Feasibility ◽  
Offshore Wind ◽  
Offshore Wind Energy ◽  
Renewable Energy Technologies ◽  
Energy Technologies ◽  
Marine Energy ◽  
Study Results

The objective of this paper is to examine the importance of independent arrays in the offshore renewable energy farms. In this context, several scenarios have been contemplated for a floating offshore renewable energy farm: a farm only using floating wave energy; a farm only using floating offshore wind energy; and a farm composed by floating wave energy and floating offshore wind energy installed in independent arrays. The article proposes a method to calculate the main economic parameters and decide their economic feasibility. A hypothetic offshore renewable energy farm located in the Galicia region (Spain) has been studied as case of study. Results show which of the scenarios has the best economic results. This method is worthwhile to compare different floating offshore renewable energy technologies in economic terms and help in the decision making of this new emerging sector that can help to rebuild Europe in the post-pandemic period.

Offshore Wind as a Base for a New Sustainable Business

2021 ◽  
pp. 254-270
Author(s):  
Almudena Filgueira-Vizoso ◽  
Joaquín Enríquez-Díaz ◽  
Isabel Lamas-Galdo ◽  
Félix Puime Guillén ◽  
David Cordal-Iglesias ◽  
...  
Keyword(s):  
Wind Energy ◽  
Renewable Energies ◽  
The State ◽  
Offshore Wind ◽  
Offshore Wind Energy ◽  
Sustainable Business ◽  
Energy Technologies ◽  
Levelized Cost ◽  
Cost Of Energy ◽  
The World

The aim of this chapter is to examine the offshore wind as a pillar for a new sustainable business. In this context, the chapter firstly analyses the significance of renewable energies. Secondly, it analyses several types of offshore renewable energies, the state of offshore wind energy in Europe, and the projections of offshore wind in the world. Thirdly, it presents an overview of the levelized cost of energy (LCOE), comparing its value for different energy technologies. Moreover, a new concept, called SCOE, is introduced to incorporates society in the LCOE equation. Finally, conclusions talk about the importance of choosing a sustainable way of generating electricity in our future.

Reducing cost of energy in the offshore wind energy industry

2016 ◽  
Vol 10 (2) ◽  
pp. 151-171 ◽  
Author(s):  
Jan Stentoft ◽  
Ram Narasimhan ◽  
Thomas Poulsen
Keyword(s):  
Supply Chain ◽  
Wind Energy ◽  
Research Area ◽  
Academic Community ◽  
Offshore Wind ◽  
Scientific Models ◽  
Energy Industry ◽  
Offshore Wind Energy ◽  
Content Type ◽  
Cost Of Energy

Purpose To support ongoing industry efforts to reduce the cost of energy (CoE) of offshore wind compared to other types of energy sources, researchers are applying scientific models and thought processes to identify potential areas of improvement and optimization. This paper aims to introduce a conceptual framework from a supply chain management (SCM) perspective, aimed at promoting the reduction of CoE in the offshore wind energy industry. Design/methodology/approach Using conceptual arguments from current academic literature in SCM, a comprehensive framework is presented that clarifies how SCM practices can be used by offshore wind energy industry to reduce CoE. Findings The offshore wind energy sector is a young industry that must reduce CoE to compete with other forms of energy. Applying a supply chain perspective in the offshore wind industry has hitherto been limited to the academic community. This paper offers a SCM framework that includes three interdependent aspects of reducing CoE – innovation, industrialization and supplier partnering – to guide the industry towards sources to reduce CoE. Research limitations/implications SCM is a broad research area; thus, the presented framework to reduce the CoE is open for further development. Practical implications The paper provides insights into how the CoE can be reduced through innovation, industrialization and partnering in the offshore wind energy supply chain. Originality/value The paper offers a seminal contribution by introducing a SCM framework to understand sources and approaches to reduce CoE in the offshore wind energy industry.

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