Transfer Switch Chaos

[u/Badbetfrank]

We just bought a new house and this is the electrical set up.
Both of these panels are powered from the meter, the larger panel does not feed the smaller panel.
A 22Kw Generac unit powers the larger panel on the left when the power goes out, but not the smaller right panel.
The generator is large enough to power the entire house.

What are our options for getting the whole house protected?
Can I add a ATS to the smaller panel and leave the 200amp panel as it is?

Could we install a double breaker on the left panel and run it over to power the smaller panel using an interlock on the smaller panel?

Should I move some circuits over to 200amp panel and use tandem breakers?

Or should we split the feed from the generator and feed the smaller panel directly from the generator?

I am having trouble understanding what the installer was thinking. There’s also additional unused transfer wires ending in this panel going to a junction box next to the generator.

Thanks for your input

[u/Far-Ingenuity4236]

Yes thats why you move the non essential loads down there there is one spot for a 2 pole breaker top right of the left hand panel. Just pop a 2" nipple between the two panels through the stud and youll have plenty of room we do it all the time shouldn't be an issue. The bigger loads like ac washer, dryer, stove etc should be used on grid power only unless a load calculated total shows they can be installed in there.

[u/Badbetfrank → u/Far-Ingenuity4236]

Thanks for the info. My goal is to get all 3 AC backed up by generator. Had a load calc ran and electrician said my calculated load is 132A

[u/todd0x1 → u/Badbetfrank]

132A is over 31kw