Re: [RE-wrenches] SolarEdge AC coupled off-grid (part 2)

I've AC coupled off grid with the Sunny Island, but I haven't tried it with Solar Edge.  Can you adjust the Solar Edge coupling window to outside the IEEE set points?  We used to have set all GT inverters in Hawaii wider, because the utility wanted them to stay on longer in a brown out. Ray W

Re: [RE-wrenches] SolarEdge AC coupled off-grid (part 2)

Hi Ray, I get the issues with AC coupling. However, this system already has a 3+ kW DC coupled array, the new array is close to 200' away, and it would take 2 more charge controllers of any of high voltage ones for this size array. Are there any battery based inverters that folks have had decent l

Re: [RE-wrenches] SolarEdge AC coupled off-grid (part 2)

I do not recommend AC coupling for off grid, except to offset daytime loads or to add PV at remote buildings.  Besides coupling errors like you're experiencing, the entire system will shut down and not recharge, if the VFX inverters shut down.   With a DC coupled array, the batteries can rechar