![UL Figure 1 T5 1 scatter temp](/images/stories/Features/2023Features/SeptOct23Images/UL-Figure-1-T5-1-scatter-temp.jpg)
Air density is critical for wind turbine energy predictions and power performance measurements. Typically, pressure, temperature and relative humidity sensors installed on a hub-height meteorological mast are used to calculate the air density.
By Ellie Weyer and Linda Sloka, UL Solutions, USA