So I am based in Australia, and use AGL for electricity supply.
They have changed the way they are now charging me for power.
A base rate throughout the day and then a demand surcharge.
They take the highest use in the calendar month between 5-9pm then multiply that by the number of days in the month by the demand surcharge and then add that to my base usage.
I have solar and a Tesla Powerwall so it’s time to really put the automation power of HA to work here.
The normal controls in Powerwall App don’t allow me to make the best use of the battery.
I want to run the house entirely on battery between 5-9pm. Pretty simple when the sun shines all day. A little harder when the sun doesn’t shine all day. The idea here is if there is no sun to ensure 100% battery is available at 5pm each day to change the settings on the Tesla to force it to charge from the grid before 5pm.
There are various references to the reverse engineered Tesla REST API on the web.
Before I start the journey has anyone done something similar already?
Does anyone want to join me on the journey to see if we can make it happen?