I currently have an Outback Skybox with around 5kw of panels. It is working great, but it is about at its limit as far as PV input.

I am thinking of installing a second inverter out in my shop with another 3 or 4kw of panels that I picked up for a good deal. Are there problems with this arrangement? I wondered about the safety settings on the Skybox that detect a grid outage and immediately stop any grid interaction. During an outage my 2nd inverter would continue supplying power and the skybox might not know the grid was down and would continue to try to backfeed.

Any ideas are apprecaited.