New Inverter XW Pro & New Conext Gateway with easy remote monitoring on Conext Insight 2

Hello Dave - Do you know if the XW Pro allows something like 20kWAC of grid-tie inverters with frequency control to be effectively AC-coupled for creation of a back-up system with higher daytime power capability (with solar) than battery supported capability?

Thanks for your response. Schneider Technical FAQs site seems to indicate there are greater restrictions and AC-coupling with XW+ models though and I'm wondering if XW Pro have this same (AC1 max amps) limitation. XW Pro spec for AC1 is 60A (14.4kW) versus 48A (11.52kW) of XW+. The following is from a Schneider page:

AC Coupling with XW+ Models

The Comments from Escalation state that for AC coupling you can AC couple up to the lessor of (2 X power rating of single XW+) or 48A relay parameter(48*240=11.5kw)

Example:With (2) XW6848+ total power would be 13.6 kw, and with the 48amp transfer relay (48*240=11.5kw)

Answer:The grid tie inverters would have to be set at or less than 11.5kw since 13.6kw is above the 48 amperage parameter.

Looks like I misread AC1 output of XW Pro and it is only 48A as well.

I'm looking at only one XW mainly for the purpose of grid back-up grid-forming so that PV is made available. I think I would actually connect grid to AC2 for battery maintenance from grid only (I believe there is no production that leaves AC2, and I am at net metering cap with grid-tie PV by itself). AC1 would connect into the alternate source input of a 400A whole-service manual transfer switch. When transfer switch is connected to AC1 as source, I would have 2-10kWAC Fronius Primo's interconnected at a downstream loads panel. In theory I would have as much as 20kWAC PV + 6.8kW charged battery = 26.8kW/112A@240V middle of the day (very best case) and 6.8kW/28A@240V overnight (while energy support lasts). This would help keep half of a "camp" energized, could possibly repeat on the second half.

However, when you look at someone like Victron they have published a 1:1 rule: The max PV power must be equal to or less than the VA rating of the inverter/charger. https://www.victronenergy.com/live/ac_coupling:start

I assume this indicates an inability or some or maybe all inverter/chargers to ensure PV won't drive to much current through the power conversion electronics (even with frequency "control" of the grid-tie system). The lower grid-tie PV solar prices are, the more disappointing this is. Schneider does seem to offer a little more headroom than Victron does, but I haven't found anything more official about this ration from them. I sadly might have to plan for one grid-tie inverter to be turned off if they ever went into back-up mode.

XWP might only be able to feed in 6.8kW, but loads would have access to as much as 26.8kW when the sun is shining strong if everything is ac-coupled.

I am having a lot of problem , previously had combox and it was working like a charm!!!

but now im having so much problem :

1-having problem with the communication with conext insight 2

2- fault do not 'appears as sopose to be , at :/event/ section/ on conext gateway device

3- at conext insight 2 is the contrary appears a tons of fault that has nothing to do with my system

4- etc etc... believe me i have xw 5548, conext 80/600, battery monitor , previously combox , and now conext gateway it's a headache

photo attached as example

I have my Battery monitor with the MPPT 80 same xanbus connection as “daisy chain”. I have my connection as the Conext Gateway said. Note : this fault events appears at Conext insight 2 /section / events/

I've had the Conext Gateway for 2 and a half months now... It has so much promise, and I remain enthusiastic about it. Nevertheless, I recently had an experience that forces me to post a little --- suggestion - Don't get rid of your Combox just yet. Keep it around for a while.

My point is that Gateway doesn't have a bootloader mode, and a failed firmware upgrade might result in problems you can't fix YET without your old Combox.