This is a rarely used method but was the big shocker (get it?) at the end of the second Return of the Living Dead movie. A hoard of zombies got taken out by electrocuting them at the local power plant after they’d been lured in. This was a novel idea for a series that really broke the mold when it came to zombie flicks. Unfortunately the second Return of the Living Dead also marked the SHARP downturn in the quality of the movies. It’s basically a flat out crap fest. None the less, the ending gave us a unique way of killing zombies. This is probably one of the least practical ways of stopping them but it theoretically, a strong electrical shock should bring down just about anything living or dead. I wouldn’t count on it working in most cases though as it poses a real danger to you as well as being difficult to set up and implement.