Okay Hero of Gotham, I'll bite. Yes, there are steam turbines, wind turbines, gas turbines, water turbines, etc. In most applications they are the prime mover, be it for a propulsion system, an electrical generator, or a compressor...I think you get the drift. They certainly can be used in a stand-by mode with a near instantaneous startup.
I think the man of steel could be the prime mover over in The Big Apple to get that bent crane down and could also hoist some Capstone Turbines (gen-sets)in place to provide power in critical applications that are now without power.
BTW, did you happen to be exposed to Kryptonite recently?