Impact of electrical topology, capacity factor and line length on economic performance of offshore wind investments

dc.contributor.authorKucuksari, Sadik
dc.contributor.authorErdogan, Nuh
dc.contributor.authorCali, Umit
dc.date.accessioned2019-09-19T14:05:11Z
dc.date.available2019-09-19T14:05:11Z
dc.date.issued2019-08-20
dc.date.updated2019-09-19T13:59:42Z
dc.description.abstractIn this study, an economic performance assessment of offshore wind investments is investigated through electrical topology, capacity factor and line length. First, annual energy yield production and electrical system losses for AC and DC offshore wind configurations are estimated by using Weibull probability distributions of wind speed. A cost model for calculating core energy economic metrics for offshore wind environment is developed by using a discount cash flow analysis. A case study is then conducted for a projected offshore wind farm (OWF) rated 100 MW and 300 MW sizes situated in the Aegean sea. Finally, a sensitivity analysis is performed for AC and DC OWFs with three different capacity factors (e.g., 45%, 55% and 60%) and various transmission line lengths ranging from 20 km to 120 km. The OWF is found to be economically viable for both AC and DC configurations with the estimated levelized cost of electricity (LCOE) ranging from 88.34 $/MWh to 113.76 $/MWh and from 97.61 $/MWh to 126.60 $/MWh, respectively. LCOEs for both options slightly change even though the wind farm size was increased three-fold. The sensitivity analysis reveals that, for further offshore locations with higher capacity factors, the superiority of AC configuration over the DC option in terms of LCOE reduces while the advantage of DC configuration over the AC option in terms of electrical losses is significant. Losses in the AC and DC configurations range from 3.75% to 5.86% and 3.75% to 5.34%, respectively, while LCOEs vary between 59.90 $/MWh and 113.76 $/MWh for the AC configuration and 66.21 $/MWh and 124.15 $/MWh for the DC configuration. Capacity factor was found to be more sensitive in LCOE estimation compared to transmission line length while line length is more sensitive in losses estimation compared to capacity factor.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid3191en
dc.identifier.citationKucuksari, S., Erdogan, N. and Cali, U. (2019) 'Impact of Electrical Topology, Capacity Factor and Line Length on Economic Performance of Offshore Wind Investments', Energies, 12(16), 3191 (21 pp). doi: 10.3390/en12163191en
dc.identifier.doi10.3390/en12163191en
dc.identifier.endpage21en
dc.identifier.issn1996-1073
dc.identifier.issued16en
dc.identifier.journaltitleEnergiesen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/8580
dc.identifier.volume12en
dc.language.isoenen
dc.publisherMDPIen
dc.relation.urihttps://www.mdpi.com/1996-1073/12/16/3191
dc.rights© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectCost-benefit analysisen
dc.subjectDC collectionen
dc.subjectEnergy economicsen
dc.subjectHVDCen
dc.subjectHVACen
dc.subjectLevelized cost of electricity (LCOE)en
dc.subjectOffshore winden
dc.titleImpact of electrical topology, capacity factor and line length on economic performance of offshore wind investmentsen
dc.typeArticle (peer-reviewed)en
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