pg 132 "2.1 The characteristics of the first large oscillation (12:03) indicate that it is a phenomenon generated within the Iberian Peninsula. It is an atypical oscillation, with a frequency of 0.6 Hz, and its origin has been correlated with the operation of a facility. In addition, the system operator has identified an atypical behavior in an installation in the wind farm."

Could this have been a deliberate attempt to crash the grid?