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Can I run 220v and 110v loads simultaneously with my Growatt SPF 12000t?

NexusNow

New Member
Joined
Dec 26, 2024
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6
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USA
I bought a basically new Growatt SPF12000t DVM/MPV for absolute peanuts and I'm planning to connect a subpanel to it to power some specific circuits in my home on battery during peak hours and to charge the batteries over night when the power is crazy cheap. My question is very simple. Is it proper to run both 220v loads as well as 110v loads off of this inverter simultaneously? My assumption is that this is absolutely fine, but when trying to research this, the rabbit hole spiraled about LF transformer based inverters(such as this one) vs transformerless inverters and imbalanced loads on the different legs of the output etc... and then I become a lot less sure.

I just want to make sure I wouldn't be doing anything unsafe by hooking up a sub panel and running a 220v circuit as well as a couple 110v circuits at the same time. Is there anything I should be aware of before running a setup like this? Thanks everyone for your help!

Apologies if this has already been discussed here. I have searched as best I could and did not find the answer.
 
You absolutely can! I have one running almost my entire house. Be aware of proper neutral connections in the sub panel
Fantastic, thank you for this! Is there anything to worry about as far as balancing the load between the two legs? I came across discussions about this, but wasn't sure how it applied to this product specifically.
 
I was looking for a spec but couldn’t find anything about balance on the 120 volt loads. It’s. Not a pair of 6kw inverters combined, but one 12kw inverter so it probably doesn’t matter. Best practice would still be to try to balance the legs though.
 
I was looking for a spec but couldn’t find anything about balance on the 120 volt loads. It’s. Not a pair of 6kw inverters combined, but one 12kw inverter so it probably doesn’t matter. Best practice would still be to try to balance the legs though.
Fair enough. Thanks for your help! I was able to find a little more information on this and I believe the12000t like has a built in autotransformer so as you stated, balancing should not be an issue.
 

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