Energy Build Your Own 12 VDC Engine / Generator 1994

Asia-Off-Grid submitted a new resource:

Build Your Own 12 VDC Engine/Generator - Building Your Own Generator Using An Automobile Alternator And Small 4 Cycle Motor

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This is an especially great resource to have ready , especially if you have a battery bank and rely on solar.

 

An automotive alternator can produce a lot more than 12 volts dc if you mod it.

 

I get up to 88 volts out of my ACdelco DR44G serries alternator welder. But it's been heavily modified.
For example I can take a standard obsolete 12si style alternator and use it on a 12 or 24v system just by swapping out the voltage regulator.
Then to get more voltage just takes a bit of creativity.
Anything over 24v or that is intended to charge a battery bank is going to need an external rectifier because the factory bridge rectifier is likely not sized and cooled to run at full power for a long period of time.