[RE-wrenches] Enphase question

[RM You]

I have a legacy system with 12 Sanyo HIT 215N panels and Enphase 210’s. Client wants to re-do roof and add two more panels when the system is re-installed. Are there any concerns with mixing Enphase inverters on a single string, e.g. adding a couple of 265w panels and appropriate inverters? We don’t do a lot of grid tie and this hasn’t come up before.

Ron