No reason why not. All you need to do is set the AC in parameters for the Multiplus so as it does not overload the Easysolar. The power assist function will also operate for you too.
That’s good. Is there a limit in the number of amps I can pass to the MultiPlus? I was looking in the manual but I cannot figure it out. I think the maximum I can pass is 32 amps.
I was thinking to get a Easysolar 5000w now, and in the future get a 10kw Multiplus (+ separate mppt). Where the EasySolar will be acting as a generator to the Multiplus. Is it possible?
5000/240 = 20 amps passing to Multiplus
10kw/240 = 41 amps from multiplus inverter
Totalling 61 amps AC
If you’re seeking to improve the power delivery capacity, you could also look at teaming the two into a pair (via VE Configure), both on phase 1. Under the hood of an Easysolar II GX is another Multiplus II. Once paired, they act as one double sized unit. However, if they are mismatched models, you still have the solution you mentioned.