Hi
I just like to share my latest automation. I change the charge current to the car depending on incoming solar so I don't run the house battery down to zero and/or need to use the grid.
First I made a sensor for average solar power:
- platform: statistics
name: Solar PV 5 Min Average
entity_id: sensor.solarnet_power_photovoltaics
unique_id: solarpv5minavg
state_characteristic: mean
max_age:
minutes: 5
And an input bolean so I can controll if I like this automation to be active, it's an button in the gui.
input_boolean:
dynamic_charge:
name: Change charge speed depending on solar
icon: mdi:ev-station
And here is the automation, it will execute when car is charging every 5 minutes:
alias: Dynamic charging
description: >-
Updates charging current based on solar, every 5 minutes when the car is charging and
dynamic charging is enabled.
triggers:
- entity_id: sensor.solarnet_power_photovoltaics
trigger: state
conditions:
- condition: state
entity_id: input_boolean.dynamic_charge
state: "on"
- condition: state
entity_id: sensor.wallbox_pulsarplus_sn_271169_status_beskrivning
state: Charging
enabled: true
- condition: template
value_template: >-
{{ states('sensor.solar_pv_5_min_average') not in ['unavailable',
'unknown'] }}
- condition: template
value_template: >-
{{ this.attributes.last_triggered is none or (now() -
this.attributes.last_triggered).total_seconds() >= 300 }}
actions:
- action: number.set_value
target:
entity_id: number.wallbox_pulsarplus_sn_271169_maximal_laddningsstrom
data:
value: >
{% set solar = states('sensor.solar_pv_5_min_average') | float(0) %} {%
if solar >= 9970 %} 13 {% elif solar >= 9280 %} 12 {% elif solar >= 8590
%} 11 {% elif solar >= 7900 %} 10 {% elif solar >= 7210 %} 9 {% elif
solar >= 6520 %} 8 {% elif solar >= 5830 %} 7 {% else %} 6 {% endif %}
mode: single
The charge current is calculated so I get about 1000 Watt to the house, I'm fine tuning it right now:
I also have an automation that stop the charging to car if the house battery goes below 80% and resumes when it's over 90%.
Cheers /Anders