__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
Surfer drains the sunlight from his body. Or just scrambles his genetics so his powers don't work anymore. Or blasts a hole the size of a basketball arena through his body.
That's a bit of a no-limit. Johnny was a human who gained powers from being exposed to "cosmic energy" and the Silver Surfer is powered himself with "cosmic energy", there's a direct connection there. Zod's an alien whose genetic makeup gives him powers while under yellow solar radiation.
Surfer also didn't strip Johnny of his powers, he altered them so Johnny could switch or take on more powers. It was actually an improvement more-so than a hindrance considering the final fight.
"Cosmic Energy" and "The Power Cosmic" aren't the same thing. They got their powers from radiation altering their genes, while Surfer was given his by a space cloud.
And my point was that he seemed to do that to Johnny just by being in such close proximity to him. If he made it a point to actually try and effect Zod with his powers in such a way, Zod has no defense against it.
IIRC, "cosmic energy" was mentioned by Reed as the way he tracked the Norrin's movements through the cosmos. It's fairly clear that was the connection the film was going for, Johnny was changed by cosmic energy and just being touched by Norrin altered his powers. Johnny then stabilized his powers by touching the board, the source of Norrin's cosmic energy.
Again, there's no reason to believe Norrin could affect Zod's powers just because he had an altering affect on Johnny's.
edit: I looked in IMDB and Wiki, both state that the cosmic energy that gave the F4 powers is the same as the energy Norrin uses/puts out. There's a connection.