Which wallbox from German KfW list?

Hello Guys,
I am from germany and Plan toninstall a wallbox for my EV.
My Goal ist to Install a wallbox which is:

  • on KfW list
  • supports pv directed loading (Solaredge Morbus Connection?)
  • Well integrated in Home assistant.

Maybe anyone already did this Kind of Research?
I will Put m findings Info this Thread, with pro and cons.

Result:
go-eCharger HOMEfix
Keba P30 X-Serie
openWB series 2
Wallbe

Does anyone already have experiences with those?

3 Likes

No experience, but in the same boat. Looking for a wall box which can be integrated into HA. Whatever you find, please share. Thank you.

1 Like

I Will Go with one of the 4 mentioned wallboxes.
I would Like to include a complete home Energy Management System Info Home Assistent.
Therefore it would be awesome,if evcc works as a Plugin.

Her is the link of the list from going electric forum.
Hope that link is ok.
KfW Wallbox List from going electric forum

1 Like

@ds1707 why not ABB Terra AC?

Because of is currently not supported by evcc and for the moment i so not need 22kW.
So with the price Delta between Go e and Abb it makes no Sense for me in my Setup.

Hello,
My suggestion: Easee Home https://easee-international.com/de/zuhause-laden/
What’s your opinion about the Easee?
Thanks!

The Easee wallbox ist good, but Not yet supported by evcc and openwb.

Hi,
I am as well looking for suitable wallbox for smart PV charging. Nevertheless my understanding was that to suport low power charging (starting with 6A /1.3kW) it would require a wallbox that can switch between 3 and 1-phase charging.
This disqualified the ‘Walbe eco’ for me. On my list remained from the current KfW List

  • openwb
  • sma ev22
  • Zappi

Don’t you see the requirement for the dynamic phase switching?
Or can you compensate with the evcc support?

Hi,
Your comment is right. Thats why i’ve ordered a Openwb and one Go charger as a slave.

I ordered OpenWB. Not delivered yet. If someone has this running in HA, I would love to see some insights.

I have it running in HA. Bridged the mqtt and then added the sensors in configuration yaml.
In my opinion a great choice.

1 Like

Do you mind sharing the yamls. Dont need it now … but want to be prepared.

mqtt config unter share/mosquitto/

connection bridge-01
address 192.168.17.80:1883
topic # out 0
topic # in 0

config.yaml

sensor:
  - platform: mqtt
    state_topic: "openWB/evu/W"
    name: openwb_evu_w
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/evu/VPhase1"
    name: openwb_evu_v_p1
    unit_of_measurement: 'V'
  - platform: mqtt
    state_topic: "openWB/evu/VPhase2"
    name: openwb_evu_v_p2
    unit_of_measurement: 'V'
  - platform: mqtt
    state_topic: "openWB/evu/VPhase3"
    name: openwb_evu_v_p3
    unit_of_measurement: 'V'
  - platform: mqtt
    state_topic: "openWB/evu/APhase1"
    name: openwb_evu_a_p1
    unit_of_measurement: 'A'
  - platform: mqtt
    state_topic: "openWB/evu/APhase2"
    name: openwb_evu_a_p2
    unit_of_measurement: 'A'
  - platform: mqtt
    state_topic: "openWB/evu/APhase3"
    name: openwb_evu_a_p3
    unit_of_measurement: 'A'
  - platform: mqtt
    state_topic: "openWB/evu/WPhase1"
    name: openwb_evu_w_p1
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/evu/WPhase2"
    name: openwb_evu_w_p2
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/evu/WPhase3"
    name: openwb_evu_w_p3
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/evu/ASchieflast"
    name: openwb_ASchieflast
    unit_of_measurement: 'A'
  - platform: mqtt
    state_topic: "openWB/lp/1/W"
    name: openwb_lp1_w
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/lp/2/W"
    name: openwb_lp2_w
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/lp/3/W"
    name: openwb_lp3_w
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/pv/W"
    name: openwb_pv_w
    unit_of_measurement: 'W'
  - platform: mqtt
    state_topic: "openWB/global/WHouseConsumption"
    name: openwb_self_consumption
    unit_of_measurement: 'W'

The binary sensors are currently not working i need to investigate.

binary_sensor:
 
  - platform: mqtt
    state_topic: "openWB/lp/1/ChargeStatus"
    name: OpenWB LP1 Charge Status
  - platform: mqtt
    state_topic: "openWB/lp/1/boolChargeStat"    
    name: OpenWB LP1 Plug-Charge Status
  - platform: mqtt
    state_topic: "openWB/lp/1/boolPlugStat"    
    name: OpenWB LP1 Plug Status
2 Likes

jumping on the same train - I have 10Kwp solar system based on Solaredge (actually with 2x LGCHEM HV ‘soon’ to be 3) and 2 EV. Wanted to charge based on excess production.

Agree with @JensAtGitHub - the Wallbox need to be 3 phase but also able to support low power charging to maximise use of excess production…

did you guys considered the Pulsar Wallbox?

Pulsar Wallbox won’t support phase switching so I’m looking at OpenWB as well - @ds1707 are you German? asking as one of the drawback is that it seems all the documentation is in German…

@stepir Yes i am german and i am fully satisfied with the openwb.
It is opensource and supports many soc moduls and is alsways under development.
This is really awesome!
Which documentation do you mean, the google list or openwb.

@ds1707 mean openwb documentation - even the forum is all German.

I noticed they have a SolarEdge integration so very interested as well - are you able to module the charge current through its API?

Yes the SolarEdge is fully implemented and it works like a charm for PV charge.
It automatically changes the charge current depending on PV.
The openwb also controls my go echarger for PV charging.
And the PV can also be set via mqtt, so you can add any PV data you have in home assistant.
In addition to that it acts like a energy management system and can control heat pumps and many other things, this is also interesting becaus i plan to install a heat pump.
i am very satisfied with this solution.