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Publication:
Global estimations of wind energy potential considering seasonal air density changes

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cris.virtual.author-orcid0000-0003-4737-0984
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dc.contributor.authorUlazia, Alain
dc.contributor.authorSáenz, Jon
dc.contributor.authorIbarra-Berastegi, Gabriel
dc.contributor.authorGonzalez Rojí, Santos José
dc.contributor.authorCarreno-Madinabeitia, Sheila
dc.date.accessioned2024-09-02T17:10:12Z
dc.date.available2024-09-02T17:10:12Z
dc.date.issued2019
dc.description.abstractThe literature typically considers constant annual average air density when computing the wind energy potential of a given location. In this work, the recent reanalysis ERA5 is used to obtain global seasonal estimates of wind energy production that include seasonally varying air density. Thus, errors due to the use of a constant air density are quantified. First, seasonal air density changes are studied at the global scale. Then, wind power density errors due to seasonal air density changes are computed. Finally, winter and summer energy production errors due to neglecting the changes in air density are computed by implementing the power curve of the National Renewable Energy Laboratorys 5 MW turbine. Results show relevant deviations for three variables (air density, wind power density, and energy production), mainly in the middle-high latitudes (Hudson Bay, Siberia, Patagonia, Australia, etc.). Locations with variations from −6% to 6% are identified from summers to winters in the Northern Hemisphere. Additionally, simulations with the aeroelastic code FAST for the studied turbine show that instantaneous power production can be affected by greater than 20% below the rated wind speed if a day with realistically high or low air density values is compared for the same turbulent wind speed.
dc.description.numberOfPages11
dc.description.sponsorshipPhysikalisches Institut, Klima- und Umweltphysik (KUP)
dc.identifier.doi10.48350/154248
dc.identifier.publisherDOI10.1016/j.energy.2019.115938
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/41078
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofEnergy
dc.relation.issn0360-5442
dc.relation.organizationDCD5A442BF29E17DE0405C82790C4DE2
dc.relation.organizationDCD5A442C08FE17DE0405C82790C4DE2
dc.subject.ddc500 - Science::530 - Physics
dc.subject.ddc500 - Science::550 - Earth sciences & geology
dc.titleGlobal estimations of wind energy potential considering seasonal air density changes
dc.typearticle
dspace.entity.typePublication
oaire.citation.startPage115938
oaire.citation.volume187
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oairecerif.author.affiliation#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliationPhysikalisches Institut, Klima- und Umweltphysik (KUP)
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unibe.date.licenseChanged2021-04-15 15:11:55
unibe.description.ispublishedpub
unibe.eprints.legacyId154248
unibe.refereedTRUE
unibe.subtype.articlejournal

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