Originally Posted by FF
Here's a quotation from the NEC Article 250.20D
"An alternate alternating current power source
such as an on-site generator is not a separately
derived system if the neutral is solidly interconnected
to a service-supplied system neutral.”
Quite correct as most dirt houses tie the neutral to a water pipe ground .
Not a good idea on a boat.
FF, the proper way to ground the neutral on a residence is to use ground rods, two of them is better.
Something people do not realize is that the power company grounds the neutral at every pole. Thats the little ground wire stapled to the side of every pole, it grounds the neutral.
On the secondary side of the power transformer, the neutral is also grounded.
In the power world, if its not energized, its grounded.