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Tesla Powerwall 3 and other hybrid inverters

Powerwall 3 is a battery with a solar inverter inside — the panels connect straight to it. Pick Powerwall 3 both in Inverter and in Battery; the number of units in Battery is also the number of inverters taking solar.

With most systems the inverter and the battery are separate boxes. A hybrid like Powerwall 3 is both at once, so Cali-Graf needs to know about it in two places.

Set up Powerwall 3

  1. Pick it as the battery

    In Battery, choose Powerwall 3 and set Units.

  2. Pick it as the inverter

    In Inverter, choose Powerwall 3. The line under the title then says how many units take the solar — the number of Powerwall 3 units in Battery.

What you seeWhat to do
Powerwall 3 is the battery unit itself — choose Powerwall 3 in BatteryYou picked Powerwall 3 as the inverter but no Powerwall 3 battery. Choose it in Battery.

Other hybrid and string inverters

For any inverter that isn’t a microinverter, type how many units the panels feed in Inverters taking solar input. The calculation models that many inverters sharing the panels — their combined power limit decides how much is clipped at the sunniest hours.

Powerwall 3 with microinverters

Powerwall 3 can also sit next to microinverters, taking solar through the home’s AC wiring. Then pick the microinverter in Inverter and Powerwall 3 only in Battery — the compatibility check tells you if the pair works.

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