Hi Guys....
A word of experience, forget trying to run an induction motor as a prime mover on a dynamic load such as a house etc.... Induction motors as gennies work very well under an even load, where caps can be set up to match the load and one doesn't overload the output to cause flux breakdown and in tandem, loss of output....
Where an induction motor really shines, is when you hook it to an existing prime mover type source, where the excitation voltage comes from the lines that you will be generating onto. All that is needed is a small amount of "overspeed" on the induction motor, now generator, to get things happening... Anything from 2% overspeed to around 10% will give you plenty of power back up the lines...
Glort, I don't know whether you have tried this yet, give it a go if you haven't, you will be surprised at how easy it works. Stick an ammeter on the line, power up the electric motor from a plug point (have the decompressor engaged) and with a bit of help from a crank, the electric motor will spin the engine over.... drop the decompressor and see what happens... The current on the ammeter drops to zero or near zero, if your pulley ratios are right, and the engine is running close to "mains frequency" ... wind up the governor a bit, and the ammeter starts registering the current now flowing BACK down the lines as the induction motor now acts as an induction generator (watch your turny meter for proof) .... Wind it up too much and the flux breaks down and it stops generating....
Have fun....
Cheers
Ed