Tesla Powerwall 3 (Fleet API)

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What Franzl can do with this device

Measure live power	✓
Meter energy (kWh)	✓
Read state of charge (SoC)	✓
Control power	—
Control operating mode	✓

How it connects

Franzl reads this device through the Home Assistant integration tesla_fleet. If your device is already set up there, Franzl finds it automatically.

Setup

The connection runs through the Home Assistant integration tesla_fleet: a cloud route via Tesla's Fleet API, because the Powerwall 3 (unlike the Powerwall 2) has no local interface.

Requirements

A Tesla developer app account (OAuth) with the "Energy Product Information" and "Energy Product Settings" scopes
Your own key pair, whose public key is hosted at /.well-known/appspecific/com.tesla.3p.public-key.pem on your own SSL domain

Device fits? Then nothing stands between you and getting started.

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