Hello @jorgebgt, The possible closure of nuclear power plants in some European countries is a great tragedy in general terms, considering that they have other sources of energy generation but they are not able to supply all the demand of their countries, this if I see it as a very probable cause of the "mentioned big blackout".

Now if we look at it from the Latin American side, Venezuela had a fatal experience with a great blackout in the past but for other reasons and that at present it is very possible that it will be repeated.