New solar installation, now x10 line noise problems

[pete_c]

Good news!
 
So you installed 2 X 2 XPF filters per each feed of more than 20 AMPs?

 

[CAI_Support]

It is probably EnPhase M215 type inverter. That inverter also labeled as Siemens micro inverter. It uses power line zero crossing to send each inverter status to its network hub reporting power generation.

 

[RAM]

Good news!
 
So you installed 2 X 2 XPF filters per each feed of more than 20 AMPs?

Yes. That's what Jeff Volp recommended. They seem to be working fine.