Pre-wired remote AC combiner box + 200 amp transfer switch, remote storage

[jahyde]

In an effort to keep up with the competition... This is a pretty serious topic as a couple of state side competitors are surpassing MN (not in quality) with 200 amp bypass, which could be more easily achieved by using external components. One competing product recently hit the market that does exactly this, and I am in an installation at the moment where it is just painful to source components, and the implementation is ugly with a bunch of boxes on the wall and a mess of gutters and wires.

Example Situation:
- Colorado mountains (sub zero temps)
- Hybrid on/off grid
- MN15-12kw-aio installed outside garage south facing wall near solar array.
- Batteries inside (heated) garage 4 feet from exterior MN15
- AC service entry/main panel 60 feet away on opposite side of home.
- LNG genset near meter.

Problem:
How do you get the DC closer to the AC to be able to do full bypass?

Solution:
Dont use the MN15 for bypass, just run its grid output back to a "remote AC distribution box" that Midnite needs to design.

Requirements:
- 200 amp Grid input sync
- 200 amp load output
- 200 amp bypass / transfer switch
- Smart load breakers input/output (same as MN15)
- Gen input / AC coupling
- Multiple 80-90 amp parallel inverter AC inputs
- This box is basically just routing/switching AC, no DC conversion.

Solves:
- Batteries needing to be someplace not near AC service entry (ie need heated space)
- Any other reason that makes it difficult to install inverters near AC service entrance.
- Easily run long extensions of smaller gauge AC wire instead of large gauge DC wire.
- Offloads the need for large bypass ability in the main inverter
- Not handling DC conversion means less heat generated, and you can handle other tasks with less overhead.
- Transfer switch is almost always desired in a hybrid install to go grid only or off-grid only
- Central connection point for 3-4 parallel inverters to support 200 amp off-grid output.
- Possibly better control over grid back feed ripple?

Name:
MN-Power-Router 

This could be considered as an AC combiner box for multiple product lines.

I have read Robins article on 200 amp bypass - which would have been valid 10 years ago, but I know multiple people locally on tight budgets that HAVE 90KW of lithium on their small home, and own EVs. One owner spent $200k to build his home, definitely not a millionaire, and saved a bunch to DIY his solar on a budget - 200amp bypass would be totally reasonable in his scenario, and the above design plan would probably make it more feasible.