A project to automate switching modes for Tesla Powerwall Owners
Thanks a friend for helping me with Python in a huge way and to https://www.teslaapi.io/ for their teardown on the current Tesla API!
In an attempt to simplify the lack of functionality in the Tesla app, I wanted a way to switch from Advanced time-based control (autonomous) to Self-powered (self_consumption), and back after the sun sets. For my use case, I do not want to export energy back to the grid and want to charge my Powerwalls as much as possible. This way I can run off of our Powerwalls as long as possible so we don't consume electricity between 3pm - 12am (my peak price times).
teslatoken.py - A Python script to automate getting a valid oauth token from Tesla
- Read a .yml file that contains the username and password for the Tesla account
- Obtain an access_token
- Save the token file to a token.yml file for use while it's valid (default is 45 days set by Tesla)
- Check to see if the current token is still valid. If not, get a new token
pw_mode.py - A Python script to obtain the energy_site_id for the Tesla account and command line arguments to switch the energy mode.
- Get the products for the Tesla account
- Gather the
energy_site_idfor the account - Take command line arguments to switch the mode of the Solar/Powerwalls to/from
self_consumptionorautonomous
Clone this repository to your server/host/VM, etc:
git clone https://github.com/natrlhy/teslaPowerwall.git
Ensure you have a working installation of Python 3 on your server
Modify the accounts.yml to include your Tesla Account email address the the respective password.
In the constants.py file you may want to modify these lines to fit your environment. It assumes you will be in the directory that you are running the pw_mode.py script.
ACCOUNTS = "accounts.yml"
TOKENFILE = "token.yml"
Switch the mode to the Self-powered mode:
cd ~/teslPowerwall
python3 pw_mode.py self_consumption
Switch the mode to Advanced time-based control:
cd ~/teslPowerwall
python3 pw_mode.py autonomous
There will be a resulting powerwall.log file you can review for issues/errors, etc.
After switching to Self-powered. Supplying Solar energy to the home and charging the Powerwalls!
To automate this, I am using a Raspberry Pi3. In cron I have this set:
00 15 * * * cd ~/teslaPowerwall;python3 pw_mode.py self_consumption
00 17 * * * cd ~/teslaPowerwall;python3 pw_mode.py autonomous
A quick guide on how to import tasks:
https://www.tenforums.com/tutorials/65264-import-task-task-scheduler-windows.html
I've included two Windows Task Scheduler xml files you can import into Windows Task Scheduler. You will need to modify the following:
- Read instructions above first on overall understanding of these scripts/files.
- Change User or Group
- Path to where you will be running the python script
- Times you'd like to run each task to fit your needs
As noted in the Installation section above, make sure you have a working Python 3.8 installation on your Windows machine
- Command line switch parameters and help