My sister and brother-in-law are visiting my father out it Hawai'i. My dad likes to restore old engines--by which I mean old farm/industrial engines of the type used to pump water or run mills, etc. Here is footage and explanation as he starts up a 1931 Fairbanks-Morse engine which he has restored at attached to a generator. He can run his whole house and the guest house on this engine quite efficiently. The start-up procedure at the minute mark is pretty neat. Basically you just give in a shove and it starts running. There no electricity in this engine whatsoever. It was built to be tough as nails, too, this thing spent many decades rusting the tropical weather before my dad got a hold of it and restored it.
And people wonder where I get my technical bent!