Need clarity of thought - am I missing something.

An LV panel currently has 6 MCCB feeding 6 different submains.

Client wants to run 2 sub mains of one generator, another 2 of another generator and a final 2 off another generator.

What am I missing. I have installed plenty of generator in many different industrial and commercial installs, one at a time, but never 3 to one LV room.

The pairs will have to be separated into individual panels and each will have its own neutral bar.

What is confusing me is that the neutral and earth on the start point of the generator is connected (fine) but now there is 3 points where neutral and earth are connected (at each star point of each generator). I know that the panel feeding the generator supplied circuits has a separate neutral to the main neutral.

It may be because I haven't had a day off for a while for a while but if at the star points, neutral and earth are linked in 3 generators (with the common earth) then essentially the neutrals from the 3 generators are linked as well.

That doesn't sit right for some reason in my tired mind. What can go wrong there...