They do make generators for mission critical stuff like
ambulances.  Lots of rural junkyards don't recycle stuff so
fast, so still have generators.  the standard delco will do
20 amps -continuous service-.
discard the volt regulator, put in a 2-3 ohm 10 watt resistor
on the fld winding, and you can get efficiency way beyond what
an alternator will get you.
It will also 'motor' a 2-3 hp engine enuf to electric start it.
double the speed, and you double the voltage.
The alternators all use ball bearings; the delcos use lubrilite
brass on the pulley end with a grease cup for oil. keep a drop
in it, and even when the belt gets worn and slaps, it won't tear
up the bearing like it will with alternators.
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 þ SLMR 2.1a þ Nothing is too much. Nothing too much.
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