[AFMUG] Generator question

[George Skorup (Cyber Broadcasting) via Af]

So I have a unique situation at our office. We're looking at a Generac 
QuietSource 22 or 30kW running on NG. I'm not dead set on that, but 
those are very nice and quiet 1800RPM. And the problem is, our building 
is really old and is split in half with two separate 240 services coming 
in. And I do have an old empty 1-1/4" conduit between the two utility 
closets. The two services is actually nice because a lot of times, one 
side will have power when the other doesn't. One comes from the north, 
the other from the south.

There's no way we can rewire and combine everything into one service 
feed. I'm trying to wrap my mind around how to do something like two 
auto-transfer switches on one generator. I have critical stuff to run on 
both sides. Probably need a qualified electrician or engineer, but I 
thought I'd ask here for suggestions before we go down that road and pay 
someone to come up with something that I most likely wouldn't like.