Dat ahead prices as a sensor and graphic, zo you can turn on your electric heating on low price and charge your home battery on the lowest price
For which country?
For which energy company?
Do you realise how many there are in the world and that not all of them supply forecasts?
Closing as out of scope anyway. Please read the instructions.
https://community.home-assistant.io/t/about-the-month-of-what-the-heck/466849