Global estimations of wind energy potential considering seasonal air density changes
The 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, error...
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ftrepec:oai:RePEc:eee:energy:v:187:y:2019:i:c:s0360544219316226 2024-04-14T08:12:50+00:00 Global estimations of wind energy potential considering seasonal air density changes Ulazia, Alain Sáenz, Jon Ibarra-Berastegi, Gabriel González-Rojí, Santos J. Carreno-Madinabeitia, Sheila http://www.sciencedirect.com/science/article/pii/S0360544219316226 unknown http://www.sciencedirect.com/science/article/pii/S0360544219316226 article ftrepec 2024-03-19T10:32:00Z The 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. Wind energy potential; Air density; ERA5; Fluid mechanics; Article in Journal/Newspaper Hudson Bay Siberia RePEc (Research Papers in Economics) Hudson Hudson Bay Patagonia |
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Open Polar |
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RePEc (Research Papers in Economics) |
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ftrepec |
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description |
The 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. Wind energy potential; Air density; ERA5; Fluid mechanics; |
format |
Article in Journal/Newspaper |
author |
Ulazia, Alain Sáenz, Jon Ibarra-Berastegi, Gabriel González-Rojí, Santos J. Carreno-Madinabeitia, Sheila |
spellingShingle |
Ulazia, Alain Sáenz, Jon Ibarra-Berastegi, Gabriel González-Rojí, Santos J. Carreno-Madinabeitia, Sheila Global estimations of wind energy potential considering seasonal air density changes |
author_facet |
Ulazia, Alain Sáenz, Jon Ibarra-Berastegi, Gabriel González-Rojí, Santos J. Carreno-Madinabeitia, Sheila |
author_sort |
Ulazia, Alain |
title |
Global estimations of wind energy potential considering seasonal air density changes |
title_short |
Global estimations of wind energy potential considering seasonal air density changes |
title_full |
Global estimations of wind energy potential considering seasonal air density changes |
title_fullStr |
Global estimations of wind energy potential considering seasonal air density changes |
title_full_unstemmed |
Global estimations of wind energy potential considering seasonal air density changes |
title_sort |
global estimations of wind energy potential considering seasonal air density changes |
url |
http://www.sciencedirect.com/science/article/pii/S0360544219316226 |
geographic |
Hudson Hudson Bay Patagonia |
geographic_facet |
Hudson Hudson Bay Patagonia |
genre |
Hudson Bay Siberia |
genre_facet |
Hudson Bay Siberia |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0360544219316226 |
_version_ |
1796310679647420416 |