Thanks for the script. I am new to hass, and tried to find a way to load balancing e-go charger. I have adapted scripts for 3 phases, e-go charger and shelly 3em power meter. I have set my shelly 3em to update measurementes every 2 seconds, so charging ramps down from 16A to 6A in 20 seconds. If ramp down seems to be too slow i may just drop charging current to 6A, and let it ramp up again from there.
This has been working for couple of days, so i leave it here, hope it helps.
For this to work hass needs to have homeassistant-goecharger-mqtt
For decreasing charging current:
- id: '1648324411434'
alias: Decrease_ev_charge_amps
description: Decrease EV charger amps to avoid overcurrent
trigger:
- platform: state
entity_id: sensor.shelly_3em_mainpwr_current_0
- platform: state
entity_id: sensor.shelly_3em_mainpwr_current_1
- platform: state
entity_id: sensor.shelly_3em_mainpwr_current_2
condition:
- condition: and
conditions:
- condition: state
entity_id: sensor.go_echarger_<Go-Charger serial>_car
state: Charging
- condition: device
type: is_current
device_id: 0472bf0cfb8b1bb51b1ba67ff7b5205d
entity_id: number.go_echarger_<Go-Charger serial>_amp
domain: sensor
above: 7
- condition: or
conditions:
- type: is_current
condition: device
device_id: cbb84a832bca9a53d3670601a8094f28
entity_id: sensor.shelly_3em_mainpwr_current_0
domain: sensor
above: 22
- type: is_current
condition: device
device_id: cbb84a832bca9a53d3670601a8094f28
entity_id: sensor.shelly_3em_mainpwr_current_1
domain: sensor
above: 22
- type: is_current
condition: device
device_id: cbb84a832bca9a53d3670601a8094f28
entity_id: sensor.shelly_3em_mainpwr_current_2
domain: sensor
above: 22
action:
- service: goecharger_mqtt.set_config_key
data:
serial_number: <Go-Charger serial>
key: amp
value: '{{ (states.number.go_echarger_<Go-Charger serial>_amp.state |float|round(0) - 1)}}'
mode: single
max: 3
For increasing charging current:
- id: '1648389547513'
alias: Increase_ev_charge_amps
description: Increase EV charger amps
trigger:
- platform: state
entity_id: sensor.shelly_3em_mainpwr_current_0
- platform: state
entity_id: sensor.shelly_3em_mainpwr_current_1
- platform: state
entity_id: sensor.shelly_3em_mainpwr_current_2
condition:
- condition: and
conditions:
- condition: state
entity_id: sensor.go_echarger_<Go-Charger serial>_car
state: Charging
- condition: device
type: is_current
device_id: 0472bf0cfb8b1bb51b1ba67ff7b5205d
entity_id: number.go_echarger_<Go-Charger serial>_amp
domain: sensor
below: 16
- type: is_current
condition: device
device_id: cbb84a832bca9a53d3670601a8094f28
entity_id: sensor.shelly_3em_mainpwr_current_0
domain: sensor
below: 19
- type: is_current
condition: device
device_id: cbb84a832bca9a53d3670601a8094f28
entity_id: sensor.shelly_3em_mainpwr_current_1
domain: sensor
below: 19
- type: is_current
condition: device
device_id: cbb84a832bca9a53d3670601a8094f28
entity_id: sensor.shelly_3em_mainpwr_current_2
domain: sensor
below: 19
action:
- service: goecharger_mqtt.set_config_key
data:
serial_number: <Go-Charger serial>
key: amp
value: '{{ (states.number.go_echarger_<Go-Charger serial>_amp.state |float|round(0) + 1)}}'
mode: single
max: 3