In an interview with TV Line, the show’s producers, Supernatural creator Eric Kripke and Iron Man director Jon Favreau tried to assuage fears that they would send viewers on a wild goose chase by suggesting that they did indeed have an explanation for the mystery, and even eliminating one possibility off the bat.
Kripke said, “There are a lot of things that would fry the grid—for instance, the answer on our show is not a solar storm. There, hot off the presses! Ours is not a solar storm.” Of course, that would have been the least interesting of all possible answers, and it would be hard to explain why that would be a mystery to anyone.
He then added that the actual solution would not be disappointingly stupid, “I had an answer that explains all the different facets – why the power went off, and why certain people are able to turn it back on — but of course that was coming from just a writer’s imagination. So we brought in a physicist and asked him very specific questions – if this technology were possible, and if this happened and this happened, would such a thing be possible? And he said that it would, that it actually explains it and make sense.” We’re heartened that he cares about scientific plausibility. Nothing can ruin a sci-fi series faster than silly ‘magic’ science.