I live in a big city, so there is no power plants nearby.
I think power plants in Spain are vulnerable on the same level as USA, but they are less likely to be attacked. I am a bit concerned about blackouts caused by hacks, but my major concern is that this hacks may damage the plants, which will be very risky for hydro and nuclear.
I am a bit afraid about cyberattacks coming from Russia but I think more countries are preparing cyberattacks. A cold digital war era may be starting in the next years.
RE: U.S. Power Plant Breach