Optimize your Electricity cost by re-charging your PV Battery when Electricity is cheap and there is not enough Solarpower available. To integrate batcontrol with Home Assistant, use the following repository: ha_addons

Prerequisites:

1. A PV installation with a BYD Battery and a Fronius inverter.
2. A Tibber or aWattar contract with hourly electricity pricing. (Get a €50 bonus on sign-up using this link.)

Preparations:

1. Verify the credentials of your inverter for customer or technician access.
2. Obtain your Tibber API key from Tibber Developer.
3. Create your batcontrol_config.yaml in the config folder.
4. Customize your load profile or use the default one.

Installation:

git clone https://github.com/muexxl/batcontrol.git  
cd batcontrol  
virtualenv venv  
source venv/bin/activate  
pip install -r requirements.txt  

Running the Application:

cd /PATH/TO/batcontrol  
source venv/bin/activate        
python batcontrol.py  

FAQs

How are the different config parameters related to each other?

The parameters follow this order:

MIN_SOC -> Backup-Power-Reserved -> max_charging_from_grid_limit -> always_allow_discharge_limit -> MAX_SOC

The always_allow_discharge_limit parameter overrides any logic and allows the battery to operate freely according to the inverter's logic.

The max_charging_from_grid_limit parameter charges from the minimum up to the always_allow_discharge_limit.