![LargeNRG S1](/assets/homepage-slides/LargeNRG-S1__FocusFillWyIwLjAwIiwiMC4wMCIsMjEwLDEzMF0.jpg)
With the introduction of the NRG S1 Anemometer in August 2019, NRG Systems conducted a round-robin S1 calibration study. The intent of the study was to quantify in a transparent way the differences in calibration results that NRG customers should expect from the three industry-leading wind tunnels that provide calibrations for NRG anemometers.