automatically set max current for charging?

[stepir]

Hi

I'm awaiting my e-go to arrive - I was wondering if anyone is controlling automatically their charging current based on PV excess production and how? would it make sense to add it as an additional feature to this plugin? I have such value (grid export) constantly monitored in HA through a sensor.

thanks

[cathiele]

I recommend https://github.com/andig/evcc for this usecase

[Kaladasas]

@stepir
Here is my automation for this usecase:

alias: Go-e PV
description: Set pv only for charger
trigger:

• platform: time_pattern
  seconds: '30'
  condition:
• condition: sun
  after: sunrise
  action:
• service: goecharger.set_max_current
  data_template:
  max_current: >-
  {% set current = (states('sensor.goecharger_charger1_i_l1') | float -
  states('sensor.solaredge_m1_ac_current') | float - 1) | int %} {% if
  current < 0 %}
  {{6}}
  {% else %}
  {{current}}
  {% endif %}
  mode: single

My car is using only L1 so I test only that, but if you have 3 phases you should add them together for a more precise calculation.

[jmtatsch]

@Kaladasas Great idea, thank you for posting this.
This is much preferred over the complexity of yet another application.

[colseven]

@stepir
i need this automation but i don't work 4 me (set always 16 A - now it must die 14 A), can you please help. Thanks

`data_template:
max_current: >-
{% set current = (states('sensor.goecharger_wallbox_charger_max_current') | float -
states('sensor.solaredge_grid_power') | float - 1) | int %} {% if
current < 0 %}
{{6}}
{% else %}
{{current}}
{% endif %}

`

[klacol]

Nice PV-charging with the webservice https://clever-pv.com/ and a new go-echarger that can switch between 1 and 3 phases:

This are the possible values ind the order from low power to higher power (When the sun goes down in the evening, the list is vice versa):

Phases	Volt	Amps	Watts
1	240	6	1.440
1	240	7	1.680
1	240	8	1.920
1	240	9	2.160
3	380	6	2.280
1	240	10	2.400
1	240	11	2.640
3	380	7	2.660
1	240	12	2.880
3	380	8	3.040
1	240	13	3.120
1	240	14	3.360
3	380	9	3.420
1	240	15	3.600
3	380	10	3.800
1	240	16	3.840
3	380	11	4.180
3	380	12	4.560
3	380	13	4.940
3	380	14	5.320
3	380	15	5.700
3	380	16	6.080