I bought a 12Kw Pulsar G12KBN portable generator with a 50Amp outlet to power my house and my 4ton AC during Louisiana storm seasons (last year we had 6 storms) and I'm looking for best recommendation on how to go about hooking it up to my house. All YouTube videos out there are pretty easy to follow but they have regular panels with Main breaker shutoff in them. (Not my case) which is why I'm struggling to find an answer.

My house has a 200A Main Panel outside with the meter combo on it and including the 100Amp breaker to the garage sub-panel which feeds my whole house, 40Amp oven breaker and 40AMp AC breaker however I have no Main disconnect, but I have 3 service disconnects.

Please advise how should I go about installing a transfer switch or do I need an interlock switch? or what do I need in my case? If you can draw a diagram that would be nice. Attached are pictures of my panels.

My idea is to add a subpanel with a main disconnect right next to it and move just the garage subpanel and the AC into this one and disconnect it from the grid with an interlock kit. So I'd be moving the 100Amp and 40Amp breakers only and adding a 50Amp breaker from the generator receptacle. Now what rating Panel would I need? Can I get away with 100Amp panel or 150A or do I need a 200A panel connected to same rating breaker in the meter combo panel? See the drawing.

How do I wire neutrals and ground in all the panels, and what gauge wires between them?

I bought a 12Kw Pulsar G12KBN portable generator with a 50Amp outlet to power my house and my 4ton AC during Louisiana storm seasons (last year we had 6 storms) and I'm looking for best recommendation on how to go about hooking it up to my house. All YouTube videos out there are pretty easy to follow but they have regular panels with Main breaker shutoff in them. (Not my case) which is why I'm struggling to find an answer.

My house has a 200A Main Panel outside with the meter combo on it and including the 100Amp breaker to the garage sub-panel which feeds my whole house, 40Amp oven breaker and 40AMp AC breaker however I have no Main disconnect, but I have 3 service disconnects.

Please advise how should I go about installing a transfer switch or do I need an interlock switch? or what do I need in my case? If you can draw a diagram that would be nice. Attached are pictures of my panels.

My idea is to add a subpanel with a main disconnect right next to it and move just the garage subpanel and the AC into this one and disconnect it from the grid with an interlock kit. So I'd be moving the 100Amp and 40Amp breakers only and adding a 50Amp breaker from the generator receptacle. Now what rating Panel would I need? Can I get away with 100Amp panel or 150A or do I need a 200A panel connected to same rating breaker in the meter combo panel? See the drawing.

How do I wire neutrals and ground in all the panels, and what gauge wires between them?

Morning guys, wow i'm suprised how many people are willing to help, thank you so much.

@ThreePhaseEel - i did the measurements for you and my multimeter showed that there is continuity between the neutral and ground on generator's receptacle, it was beeping showing 0.2 on the screen.

@Harper - from a little googling for outdoor panels this one came up to fit my needs and the price is good, its a a big panel even bigger than the meter combo, but i couldnt find something smaller IN STOCK :) and the reason i bought the stuff is the shortage, and i'll better buy it then take it back if not needed than wait for it for months. This was the last panel in stock at Lowes :). I dont really care about the feed through lugs. It came with it so it is what it is.

From a little research i want to mention that i will be hooking up a soft start switch to my AC and that should be sufficient to run the AC on my generator.

i'll be attaching some pics with my intended location for panel and softstart switch that i bought.

i bought a 12Kw Pulsar G12KBN portable generator with a 50Amp outlet to power my house and my 4ton AC during Louisiana storm seasons (last year we had 6 storms) and i'm looking for best recommendation on how to go about hooking it up to my house. All youtube videos out there are pretty easy to follow but they have regular panels with Main breaker shutoff in them. (Not my case) which is why i'm struggling to find an answer. My house has a 200A Main Panel outside with the meter combo on it and including the 100Amp breaker to the garage sub-panel which feeds my whole house, 40Amp Oven breaker and 40AMp AC breaker however i have no Main disconnect. buti have 3 service disconnects. Please advise how should i go about installing a transfer switch or do i need an interlock switch? or what do i need in my case? If you can draw a diagram that would be nice. Attached are pictures of my panels.  

My idea is to add a subpanel with a main disconnect right next to it and move just the garage subpanel and the AC into this one and disconnect it from the grid with an interlock kit. So i'm moving the 100Amp and 40Amp breakers only and adding a 50Amp breaker from the generator receptacle. Now what rating Panel would i need  ? can i get away with 100Amp panel or 150A or do i need a 200A panel connected to same rating breaker in the meter combo panel? See the drawing.

How do i wire Neutrals and ground in all the panels? and what Gauge wires between them? Thank you in advance.

I bought a 12Kw Pulsar G12KBN portable generator with a 50Amp outlet to power my house and my 4ton AC during Louisiana storm seasons (last year we had 6 storms) and I'm looking for best recommendation on how to go about hooking it up to my house. All YouTube videos out there are pretty easy to follow but they have regular panels with Main breaker shutoff in them. (Not my case) which is why I'm struggling to find an answer.

My house has a 200A Main Panel outside with the meter combo on it and including the 100Amp breaker to the garage sub-panel which feeds my whole house, 40Amp oven breaker and 40AMp AC breaker however I have no Main disconnect, but I have 3 service disconnects. 

Please advise how should I go about installing a transfer switch or do I need an interlock switch? or what do I need in my case? If you can draw a diagram that would be nice. Attached are pictures of my panels. 

My idea is to add a subpanel with a main disconnect right next to it and move just the garage subpanel and the AC into this one and disconnect it from the grid with an interlock kit. So I'd be moving the 100Amp and 40Amp breakers only and adding a 50Amp breaker from the generator receptacle. Now what rating Panel would I need? Can I get away with 100Amp panel or 150A or do I need a 200A panel connected to same rating breaker in the meter combo panel? See the drawing.

How do I wire neutrals and ground in all the panels, and what gauge wires between them?