The trade of Electrician has a range of opportunities almost incomparable to anything.
There are electricians that only do residential, or commercial or industrial. They may only focus on bending conduit, it is after all a kind of art, or doing renovations.
The thing is though, you don't have to only do one thing. I'm going after a PSE right now (power systems electrician) for a dual ticket getting more than my full rate for being an electrician. In the past year I've done security installations, fiber optics for a data center, load shedding in an air separation plant, transformer changouts, 240Kv current transformer installations, infrared scoping, oil containment installations and, for fun, residential and commercial side jobs.
I can transfer into any field doing anything relating to application, installation, or maintenance of anything using electricity.