European offshore wind capital cost trends up to 2020

Vieira, Marisa; Snyder, Brian F.; Henriques, Elsa; Reis, L.

doi:10.1016/j.enpol.2019.03.036

Cited by 39 publications

(28 citation statements)

References 11 publications

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“…For this analysis the cost component comprises of the construction and operation and maintenance costs (CAPEX plus OPEX) of the wind farm throughout its entire life cycle. Similar to the study by [23] from the edge of the wind turbine layout [28]. It is therefore desired that the wind farms are built at a distance from the shore to lower their negative social impact, which is better.…”

Section: Inputsmentioning

confidence: 99%

A cross-European efficiency assessment of offshore wind farms: A DEA approach

2020

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Offshore wind energy is recognized as an important source of renewable energy and has experienced a rapid growth in recent years especially in northwestern European countries. In this paper the efficiency of 71 offshore wind farms across five northwestern European countries is assessed using the Data Envelopment Analysis (DEA) Method. The number of turbines, cost, distance to shore, and area of the wind farms are selected as the inputs and the connectivity to population centres, the produced electricity and the water depth are considered as the outputs. The results show that the average CCR efficiency score of all offshore wind farms considered in this study is 87%, and the relative median efficiency of offshore wind farms in different countries is not statistically different. This study offers a practical and holistic performance assessment to the offshore wind stakeholders and policy makers via including economic, environmental, technical and social inputs and outputs in the analysis.

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Section: Inputsmentioning

confidence: 99%

A cross-European efficiency assessment of offshore wind farms: A DEA approach

2020

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“…Renewable energy sources (RES) are becoming an increasingly important part of the energy basket in the European Union (EU) [1,2]. Their presence in the overall energy mix of European countries has been constantly rising over the last thirty years [3]. While in 1990 the share of renewables in energy production in EU countries constituted only 4.39%, in 2017 (the most recent available data) it raised to 13.73%, as reported by the Organization for Economic Co-operation and Development (OECD) [4].…”

Section: Introductionmentioning

confidence: 99%

Public Acceptance of Renewable Energy Sources: a Case Study from the Czech Republic

et al. 2020

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The substitution of traditional energy production with renewable energy sources (RES) in the European Union (EU) represents a multidimensional issue with its pros and cons viewed differently by governments, technology companies, markets, as well as the general public. There are significant public doubts in expediency of investments in renewables in place. Our paper studies the factors related to the public opinion on renewables using a reasonable and representative sample of respondents (N = 1026) from one of the EU Member States, the Czech Republic, via a set of ordinal regression analyses with spline correction for ordinal predictors. Our results suggest that the population of the Czech Republic is split in half in its trust in renewables as a substitute to traditional energy sources. In addition, our results show that the opinions on renewables in the Czech Republic are significantly related to personal concerns on environmental protection and worries about use of nuclear energy. Moreover, we find that traditional mass media is not statistically significant, even though internet news channels and social media were statistically related to the opinions (negatively and positively, respectively). The comparison of the responses with respect to the frequency of following social media support the hypothesis of the media bubble. The empirical results indicate that public opinions on renewables are likely to be built on the information sources vulnerable to hoaxes, bubbles, and misinformation. We conclude that more media presentation on RES is needed and make some practical suggestions for the stakeholders, journalists, and relevant policymakers.

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“…In 2019 alone, 2.5 GW were installed and €6 billion worth of financing was granted for new Offshore Wind (OSW) farms [7]. Capital costs for new offshore wind farms in Europe are now decreasing, after a continuous rise up to 2015 [9]. However, almost all the offshore capacity is confined to the northern European seas, as the winds are strong and sea levels are shallow.…”

Section: Introductionmentioning

confidence: 99%

Soil Interaction and Grout Behavior for the NREL Reference Monopile Offshore Wind Turbine

Vieira¹,

Viana²,

Henriques

et al. 2020

JMSE

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Monopiles for offshore wind are the most used foundations by farm operators due to their low production costs, when compared to other bottom-fixed or floating foundations. In this research, a monopile foundation for offshore wind power was evaluated for its soil interaction and grout behavior, and an appropriate numerical model for the structural analysis of the foundation and tower was developed. FAST 8, an aero-hydro-servo-elastic numerical code developed by NREL, was used to obtain the loads applied on the supporting structures. These loads were pre-processed before they were inputted on the finite element model, developed using the finite element software ANSYS. The considered conical grout connection, which connects the monopile to the transition piece through friction, was modeled under a changing-status nonlinearity condition. To model the soil–pile interaction, a p-y model was applied using the ANSYS APDL commands. Static, modal, and transient structural analyses were produced to study the structure suitability for its use on offshore environments. Different soil interactions were modeled, and their results were then compared within the transient and modal analysis, indicating that the angle of the grout connection strongly affects the loading conditions on the grout. Moreover, scouring affects the dynamic behavior of the overall supporting structures, thus protection against this phenomenon is suggested.

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European offshore wind capital cost trends up to 2020

Cited by 39 publications

References 11 publications

A cross-European efficiency assessment of offshore wind farms: A DEA approach

A cross-European efficiency assessment of offshore wind farms: A DEA approach

Public Acceptance of Renewable Energy Sources: a Case Study from the Czech Republic

Soil Interaction and Grout Behavior for the NREL Reference Monopile Offshore Wind Turbine

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