Powerwall as backup fed by non-Tesla solar

[apacheguy]

I read that Powerwall can either be charged by solar or the grid, not both. I’m wondering why that is and what the difference would be in terms of wiring. I have an existing solar system installed many years ago. Do I need a Tesla solar inverter to charge the Powerwall with solar? Or will my existing grid-tie inverter work? As I understand it, the Tesla backup gateway should be sufficient to trick a grid-tie inverter into thinking that the grid is online. Any other considerations to keep in mind?

 

[h2ofun]

I read that Powerwall can either be charged by solar or the grid, not both. I’m wondering why that is and what the difference would be in terms of wiring. I have an existing solar system installed many years ago. Do I need a Tesla solar inverter to charge the Powerwall with solar? Or will my existing grid-tie inverter work? As I understand it, the Tesla backup gateway should be sufficient to trick a grid-tie inverter into thinking that the grid is online. Any other considerations to keep in mind?

I can charge PW from either solar and or grid, many of us can now

 

[jjrandorin]

I read that Powerwall can either be charged by solar or the grid, not both. I’m wondering why that is and what the difference would be in terms of wiring. I have an existing solar system installed many years ago. Do I need a Tesla solar inverter to charge the Powerwall with solar? Or will my existing grid-tie inverter work? As I understand it, the Tesla backup gateway should be sufficient to trick a grid-tie inverter into thinking that the grid is online. Any other considerations to keep in mind?

There is no difference in terms of wiring. Its options in the app, and whether Grid charging is enabled for your account or not.

No, you dont need a Tesla inverter. Powerwalls are AC coupled, so work with most inverters.