Iberian Peninsula blackout: analysis and performance of Nordex wind power plants

This paper presents the analysis and performance recordings registered on Nordex wind power plants during the Iberian Peninsula blackout happened last April 2025. On Monday April 28th at 12:33 PM, an unprecedented blackout affected the entire Iberian Peninsula, including Spain, Portugal and a small part of south-west France. This event was the first "zero energy" case in the Iberian region's history. Firstly, the paper presents what was the Iberian grid situation observed before the blackout. Secondly, the paper summarizes what was the sequence of events, comparing ENTSO-E and Spanish ministry reports published about the sequence of events with the recordings from Nordex’s wind power plants operating close to where the blackout was originated. Moreover, an overview on power oscillations observed 30 and 10 min before the event and a short view of the on-going root cause analysis is included. Finally, the paper shows how Nordex wind farms operated during the event, offering existing and future solutions that Nordex’s wind power plants could provide to prevent from similar blackout events in the future.