| Author(s) | Alain Ulazia, Ander Nafarrate, Gabriel Ibarra-Berastegi, Jon Sáenz, Sheila Carreno-Madinabeitia |
| Journal | Energies |
| Year | 2019 |
| DOI / Link | 10.3390/en12132635 |
| Keywords |
Hywind-Scotland is a wind farm in Scotland that for many reasons is at the leading edge of technology and is located at a paradigmatic study area for offshore wind energy assessment. The objective of this paper is to compute the Capacity Factor ( C F ) changes and instantaneous power generation changes due to seasonal and hourly fluctuations in air density. For that reason, the novel ERA5 reanalysis is used as a source of temperature, pressure, and wind speed data. Seasonal results for winter show that C F values increase by 3% due to low temperatures and denser air, with economical profit consequences of tens of thousands (US$). Hourly results show variations of 7% in air density and of 26% in power generation via FAST simulations, emphasizing the need to include air density in short-term wind energy studying.