Tesla Powerwall3 integration

Configuration
1

Hello,

I am attempting to add a powerwall3 to HA via the native integration. I am getting the following error.

An unknown error occurred: Powerwall api error: API returned status code ‘424: Failed Dependency’ with body: {“code”:424,“message”:“No system details, please run enumeration”}

From some of the research I have done it appears that the API for the powerwall 3 is broken. I am wondering if there is any process forward on this or if headway is being made on a revision?

Useful tips forward are appriciated. I am new to the HA community but have been in enterprise automation for some time so please excuse nievity.

2

Hi @adminadam did you find a solution to this?

I have just got a powerwall 3 & I am considering getting HA to integrate with my heat pump (daikin Altherma 3), car charger (myenergi zappi) and energy supplier (Octopus UK).

If the HA integration for PW3 is not avaialbe I may not bother.

Many thanks

3

I have a Powerwall 2 and it has recently stopped talking to the native HA integration. A bit of googling suggest that Tesla are killing the local api on the Powerwall 2 so I wouldn’t be surprised if it is just not there on the PW3.

The Tesla Custom Integration GitHub - alandtse/tesla: Tesla custom integration for Home Assistant. This requires a refresh token be generated by third-party apps to login. is a cloud based alternative that still works fine with my PW2 - perhaps worth a try?
Pros it can actually control the powerwall - eg, set battery reserve level, cons it’s cloud-based so real time monitoring of power is out.

Good luck

4

Thanks for the reply.

I now realise that my installation is a PW3 with a Gateway 2

Do you know of the above custom integration would work with PW2 and GW2? Or how I may find out?

Also, is the above custom integration accessed via HACS (or, if not how is it accessed? if that sounds silly, pleas bare in mind I have not actually played with HA yet.)

Many thanks

5

The link I posted has full installation instructions for a HACs and a manual install.

Try it and see if it works is the only way you will know for sure - just follow the instructions carefully and make sure not to skip any steps.

Good luck