Alternator Efficiency

[bill barlow]

Does anybody know or can have a good guess at the efficiency of a Clarks 2.2Kva alternator?

[Hymie]

This Wikipedia article suggest an efficiency range of 70-80% at medium speeds for vehicle alternators.
Bear in mind this efficiency is based on the mechanical power/energy input to the alternator and does not consider the losses in the combustion engine converting fossil fuel into a mechanical output power/energy.

https://en.wikipedia.org/wiki/Alternator_(automotive)

[Calicogirl]

Do you mean alternator and not generator bill- only 2.2kva is one heck of a alternator lol :/

[Hymie]

I believe that the alternator on my Jeep Grand Cherokee has an output current rating of 168A; at 14Vdc that is over 2.2kVA.