I tested it with the Tesla API back in the day, but I changed it to control the charger because of this reason. I didnāt want to depend on changes to the API (like they happened) and I wanted it to be universal (what if I was charging a different car, and not a Tesla?).
Thatās why I recommend to go the charger way. If you can control it through Home Assistant, you are future proof.
Ok, checking this right now, itās an issue
Iāve been working on an update. Iāve modified the logic, stopped the charging when below threshold and making it more robust in general.
Iāll give it a test and will post the update to the github soon.
Dynamic EV Charging Automation Blueprint v2.0 - Major Update Released!Iām excited to announce version 2.0 of my Dynamic EV Charging Automation blueprint with significant improvements and new features that make it more reliable and robust than ever!
Whatās New in v2.0
Smart Start/Stop ControlThe biggest addition is automatic charger control. Instead of trying to set charging current to 0A (which many chargers canāt handle), the automation now:
Fixed Power Calculation LogicResolved a critical issue in the power calculation formula that could cause:
Incorrect available power calculations Oscillating start/stop behavior Charging stopping when it should continueThe new logic correctly calculates actual available power for the charger.
Enhanced Stability Installation & Upgrade Instructions
New Users:
Existing Users - IMPORTANT:You MUST recreate your automation as new configuration options have been added:
New Required Configuration
EV Charging Toggle (Start/Stop)New required input: You must select a select entity that controls your chargerās start/stop state.
Supported options should include:
"Start charging""Stop charging""Waiting for command"Examples of compatible entities:
select.ev_charger_toggle_chargingselect.wallbox_charging_stateselect.charger_controlHow to find yours:
select related to your charger
How It Works Now
Example Scenarios
CompatibilityWorks with any EV charger that has:
Amperage control via Home Assistant (number entity) Start/stop control via Home Assistant (select entity) Charging state sensor (sensor entity)
Bug Fixes
Tips for Best Results
Feedback & SupportThis blueprint has been tested extensively, but every setup is different. Please:
Star the repository if you find it useful Report issues via forum
Share your experience in the comments Suggest improvements for future versionsRepository: GitHub - EDV11/electric-vehicle-ev-dynamic-charging-home-assistant-
Happy charging!
Iām using both an Easee charger and a Tesla. But neither have a select sensor for charging. Have got tons of other sensors, but the blueprint requires select.
Would your advice be to just create a helper for this? Or are there other possibilities?
With Tesla Fleet integration you have a charging switch, you may try that option. Before making any modifications just try and start charging the car and enable and disable the switch to see how it behaves and if the charger resumes.
If it does work fine, you would have to do some changes to the blueprint
charger_toggle:
name: EV Charging Toggle (Start/Stop)
selector:
entity:
domain: select
New
charger_toggle:
name: EV Charging Switch (On/Off)
selector:
entity:
domain: switch
2 Search and replace in Service Call
Old
- service: select.select_option
target:
entity_id: !input charger_toggle
data:
option: |-
{% if actual_free_power / voltage >= min_amps %}
Start charging
{% else %}
Stop charging
{% endif %}
New
- choose:
- conditions:
- condition: template
value_template: "{{ actual_free_power / voltage >= min_amps }}"
sequence:
- service: switch.turn_on
target:
entity_id: !input charger_toggle
- conditions:
- condition: template
value_template: "{{ actual_free_power / voltage < min_amps }}"
sequence:
- service: switch.turn_off
target:
entity_id: !input charger_toggle
Try that and see if the car can replace that feature of the charger.
One question, is it possible to analyze each of the phases, because in my case I can spend a maximum of 18 amps per phase, which means that depending on the type of consumption I have at home I can have, for example, one phase spending 8 amps and the other 2 1 amp if I am charging at 16 amps per phase the electrical panel will trip
I guess it would be possible if you add one Shelly per phase.
my wall box see amp per phase and i have a shelly 3em
Did this modifification work? I have the same issue and would like to know if anyone tested it?
Not tested by me. āOfficiallyā the blueprint operates over the charger because itās a universal approach and it doesnāt matter if you are charging a Tesla or any other car.
Great work!. How was the experience with feyree portable charger when adjusting current? Stable with local Tuya?
Yes, 100% stable with Tuya, I just reserve the IP in the router and it never disconnects
Thanks for the quick response. I am going to order the feyfee portable type2 7kw. Let see how it goes.
Hi Team, I have an EV5 that only allows you to set charge rate to 60, 90 or 100%. Is there a way to modify this blueprint so that it still works? Or can anyone recommend an alt blueprint?
It doesnāt matter the maximum charge level you select the car to, that doesnāt affect how the blueprint works.
Hi.
Iām using your automation with an AFYEE that canāt change amps if it is charging.
To avoid this Iām using carās charge control (Tesla) with an ESP32 connected to carās bluetooth (ESPHome Tesla BLE | esphome-tesla-ble)
My smartmeter is the huawei PV meter but it measures inverted values,
-1000W means that Iām using 1000W from grid and +1000W means that Iām exporting 1000W to grid.
Iāve solved this adding a helper template sensor that inverts value of the meter.
So, for the people that have a inverted value of grid export /import
add a new helper - template - sensor that inverts the value:
{{ states('sensor.power_meter_active_power') | float * -1 }}
Thanks for your blueprint, that helped me a lot.
Just released v2.1 with improved charging status detection. Now supports case variations like āChargingā (capital C) which is what ESPHome Tesla BLE returns. This should work better with your ESP32 setup.
Update available on GitHub: GitHub - EDV11/electric-vehicle-ev-dynamic-charging-home-assistant-
Happy charging!
Hi.
Iāve modified the blueprint to allow charging only from solar excess.
Youāll need to create a helper that enable or disable solar excess mode.
In solar excess mode it will only use the excess of your solar production.
Normal modes doesnāt change, and it will use the maximum grid available.
I hope you consider this useful.
Thanks.
Hi! Thank you so much for taking the time to implement this feature and share it with everyone! 
Iāve reviewed your code and the solar excess charging logic looks solid. The approach of calculating available power based on (total_consumption - charger_consumption) when grid power is negative makes perfect sense for those with solar installations.
A few thoughts: I noticed the calculation uses (total_consumption - charger_consumption) | abs when in solar mode. While this works well, there might be edge cases where the absolute value could create slight oscillations. Have you tested this extensively? Iām curious about your real-world experience with it. Any issues so far?
I canāt test it myself as I donāt have solar panels.