Check out this thread, this anon explained it well:
while the blackout was going on, you could hear a lot of conflicting information on the radio from unknown sources, which was creepy as fuck and "no one knows" what happened. But it's obvious.
This was a small, pre planned test. They took out the head of Siemens Spain probably because he was against these social experiments.
They are experimenting with what happens when larger european countries have their basic needs (electricity, water) taken out.
They picked Spain and Portugal because it's still a large number of people to test with and to them we are lazy pigs that don't matter in the big picture of the world. They know our cultures are incredibly chill and in 2 or 3 days no one will remember this...
They took us out for only half a day, just to play around with what would happen. Thankfully everyone was relatively chill and we didn't get niggers and migrants going insane, but reminder that it was only half a day.
My best guess is that we have a few months/maybe a couple of years, before everything goes down for good.
I'm going to stock up on everything and if you're in Europe and you're not doing the same, you won't last 3 days, let alone a couple of weeks.