Is this a safe and sane design for the Sol-Ark 5K-1P?

[starford]

I want to take a direct and simple path from some solar generation in the yard to using it in the house. I think a Sol-Ark 5k-1p is a good size for this and more importantly, has the operating mode I believe I need. Here's my approach:

Solar: 2 strings of 8x400w panels resulting in about 300v DC each, maybe 2,200 watts each per day
Inverter: Sol-Ark 5k 1p
Operating Mode: Limited Power to Home (Meter Zero) - I don't care about any selling of excess to grid
Residence Electrical: Dual 200 amp 240v grid service panels with branch breakers, no sub panels
Connections: Sol-Ark connects to one of the 200A panels via a 50A breaker from the GRID port on the inverter. Current detection whip is attached to the associated 120v leg in same panel. Solar connects to the inverter's MPPTs, one string per. Programming is set to Meter Zero mode.

The Sol-Ark manual states as 48v battery must be used in this configuration but I'm not sure why. Either way I show one in the config because they say so.

Is this a safe and sane way to bring in a modest amount of solar generation daily?

 

[DIYrich]

Operating Mode: Limited Power to Home (Meter Zero) - I don't care about any selling of excess to grid

The Sol-Ark manual states as 48v battery must be used in this configuration but I'm not sure why.

Battery buffers the PV production when netting to Zero.

Is this a safe and sane way to bring in a modest amount of solar generation daily?

It should work.

But, for that price, I would go for the growatt 10000tl-hu-us. That is 120/240v split phase, and you can back-up your house (or critical loads). Make sure to get the version with breakers.

 

[starford]

I got sign-off from Sol-Ark Support on this design, so I'm confident this is a viable design. Sol-Ark requires you to send in your application details for their warranty support.