[RE-wrenches] SolarEdge AC coupled off-grid

[Howie Michaelson]

I have used SolarEdge to AC couple a smaller Array in the past, with no
issues. I recently added a fairly significant array (6.2k DC via a SE6K
(setap) inverter in an off-grid home which has had a dual stack VFX3648 for
many years.  I also added 32kWh of Blue Ion batteries replacing an 80kWh
older flood Rolls "KS" battery bank.

Unfortunately, it appears the SolarEdge is having trouble staying connected
to the VFXs.  According to the errors the SE throws errors indicating an
grid instability and excessive harmonics.  I made the mistake of telling SE
that this was an off-grid application, and they basically stopped talking
to me after explaining what the error codes mean.

I'm wondering if the VFXs are just not capable of putting out clean anough
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