Tank Utility (now sold as Generac Tank Utility) has had a legacy integration in to Home Assistant for some time, and it was really lacking. It only provided details on the propane level, and even that was not great. The installed was fully manual, and took a lot on non-UI steps.
So, I took this on as my first ever Home Assistant project to develop updated code utilizing the app.generacfuel.com API. (formerly known as app.tankutility.com)
I only have a legacy WIFI module, so I am unable to test with the new LTE devices that Generac sells (the ones with the $15/yr fee).
Please - Check it out - Let me know your thoughts, and provide any feedback you may have.
Currently requires manual installation, but if someone wants to help me with the process of getting it on HACS, that would be great.
Adam