Repowering: An actual possibility for wind energy in Spain in a new scenario without feed-in-tariffs

Colmenar‐Santos, Antonio; Campíñez-Romero, Severo; Pérez-Molina, Clara; Mur-Pérez, Francisco

doi:10.1016/j.rser.2014.08.041

Cited by 47 publications

(21 citation statements)

References 29 publications

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“…For the WFs in operation and commissioned since 2005, a CF value of 24% is assumed, based on the analysis of the CF evolution in Spain from 2005 to 2016 as shown in Fig 7.• A CF value of 35% for the new WFs installed from 2017 is assumed, according to the data provided in the last WE auction in Spain (Ministry of Energy, Tourism and the Digital Agenda, 2017) and the information from WT manufacturers.• Based on the simulation results, a CF value of 45% is assumed for the repowered WFs. This value is consistent with the work byColmenar- Santos et al (2015), where a CF of 40% is considered, and taking into account the performance improvement of the new generation of WTs in the recent years.…”

supporting

confidence: 91%

“…Despite the fact that the economic analysis of repowering has been addressed by several authors proving that investment in the repowering of old WFs can be more profitable than investing in new ones (Castro-Santos et al, 2011Colmenar-Santos et al, 2015;, further work could focus on the assessment of the scenarios analyzed from an economic perspective. Furthermore, the model could be applied in other countries and also for the evaluation of other RES Formatted: Indent: Left: 0 cm such as solar or solid biofuels.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The role of wind energy production in addressing the European renewable energy targets: The case of Spain

Ramı́rez

Honrubia-Escribano

Gómez‐Lázaro

et al. 2018

Journal of Cleaner Production

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Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.

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supporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

The role of wind energy production in addressing the European renewable energy targets: The case of Spain

Ramı́rez

Honrubia-Escribano

Gómez‐Lázaro

et al. 2018

Journal of Cleaner Production

View full text Add to dashboard Cite

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“…Repowering wind turbines (or wind farms) brings a number of benefits. First, and most important, repowering will increase performance and electricity production of wind projects, as demonstrated under different circumstances by previous studies . This increase in performance is partly because the sites with the best wind conditions were often used in the 1980s or 1990s .…”

Section: Background—repowering Wind Turbinesmentioning

confidence: 92%

“…First, and most important, repowering will increase performance and electricity production of wind projects, as demonstrated under different circumstances by previous studies. 1,4,[8][9][10][11] This increase in performance is partly because the sites with the best wind conditions were often used in the 1980s or 1990s. 12 Compared with a greenfield project, financing conditions tend to be better for repowering projects because the wind resource is known already and planning costs will be lower.…”

Section: Background-repowering Wind Turbinesmentioning

confidence: 99%

Technology effects in repowering wind turbines

2019

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This research investigates, analyses, and quantifies the technological effects of wind turbine repowering (ie, where old turbines are removed and new turbines are installed at the same or a very close location, including the enhanced performance in energy production). In these cases, it is assumed that both old and new turbines are subject to the same wind regime, other than because of technological elements, such as hub height, and thus it is possible to isolate the effects of new technology from the effect of changing local wind conditions. This research is based on the analysis of empirical data on repowering turbines in Denmark and Germany, and on historical production data available for the Danish component of the data set. Technological innovations are expected to enable new wind turbines to capture more energy at the repowering site, mostly through larger rotors and higher hub heights, and this is what this study has analysed. The results show that new turbines in repowering projects are twice as high, have three times the rotor diameter, nine times the swept area, six times the nominal power, and nine times as much electricity as the old turbines. However, the most significant improvement is probably the increase of capacity factor of 7.1% on a per-turbine basis, or 9.7% on a per-production basis.

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“…Although they do not analyze a specific case study, the discounted payback period and the levelized required revenues are added to the previous key figures. Other examples are the models provided by Peña et al [15] who focus on the probability of existing wind farms in Portugal and Colmenar-Santos et al [16] who assess the economic feasibility of repowering in the wind energy sector of Spain.…”

Section: Related Workmentioning

confidence: 99%

Financial Decision Support System for Wind Energy _ Analysis of Mexican Projects and a Support Scheme Concept

Koukal¹,

Piel²

2017

Proceedings of the 50th Hawaii International Conference on System Sciences (2017)

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Energy consumption is constantly on the increase all over the world. Especially fast-growing economies in emerging countries contribute to this increase. Governments need to promote the expansion of renewable energies in these countries by providing adequate general conditions and suitable support schemes. We provide decision support for the assessment of wind energy projects and their financial conditions. Following design science research (DSR) principles, a discounted cash flow (DCF) model in combination with a Monte Carlo simulation (MCS) to consider project risks was created. On this basis, a decision support system (DSS) was implemented in MATLAB. The applicability of the DSS is evaluated in the course of an analysis of onshore wind projects in Mexico. Based on the analysis' results, a concept of a support scheme is designed to promote an expansion of onshore wind energy across Mexico.

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Repowering: An actual possibility for wind energy in Spain in a new scenario without feed-in-tariffs

Cited by 47 publications

References 29 publications

The role of wind energy production in addressing the European renewable energy targets: The case of Spain

The role of wind energy production in addressing the European renewable energy targets: The case of Spain

Technology effects in repowering wind turbines

Financial Decision Support System for Wind Energy _ Analysis of Mexican Projects and a Support Scheme Concept

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