kmadstarh

Are the shaft and the diesel generator in different chunks/regions?

Are you unable to return from the nether whatsoever, or are you leaving the nether and coming back somewhere not in your dimension, or not at your island in your...

It looks like you're being returned to an equivalent point in the overworld dimension, rather than being returned to your own personal dimension... Until this is fixed you'll probably have...

That's a neat one. Given that the diesel generators don't _need_ any assistance connecting to transfer power (a shaft connected to just one of the connected generators would be sufficient),...