What color can the smoke be ? Or... why not ?

A bunch of solar panels feeding one of these below and its output into the dwelling consumption to one leg of the 240VAC/60Hz utility.
Another equal with another set of solar panels and its output into the same dwelling consumption to the other leg of the 240VAC/60Hz utility.

Is it doable ?

 

OK, one thing was not clear to me: Are Each of these feeding a mains connected load? OR are they feeding the power distribution panel IN PLACE of the mains connection??The reason this matters is because the mains feed will force them into the correct relationship. That will have a bad effect on all of the 240 volt loads, but not have any affect on the 120 volt loads.
Does that answer make sense to you?? Or is additional explanation in order??