https://en.wikipedia.org/wiki/2025_Iberian_Peninsula_blackou...

not strictly because of wind power but few denies that wind power hasn't been a contributing factors - politically it's too sensitive so it's going to be "under investigation" for a long time. Alledgedly too little inertia / rotating power ... there is a parallel to the Australian blackout 10 years ago, where the solution was to build large batteries