Can AT1 throttle output of panels with Enphase IQ8 microinverters

Product Discussion BLUETTI Apex & AC Series
1

I have a Bluetti Apex 300 with 3 B300K expansion batteries. I just had a rid-tie solar system installed with 26 panels equipped with Enphase IQ8 microinverters and an IQ Combiner 5C. I’d like to purchase an AT1 to tie everything together. I Have two questions:

  1. Will the AT1 throttle the output of the microinverters if the grid goes down, the batteries are fully charged and the panels are producin more power than I need?
  2. The AT1 user manual shows a HUB A1 between the Apex300 and the AT1 even when there is only one Apex 300 connected. Why is this needed?

Chris

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