[Larrikin]

Could you just use Home Assistant to do this?

[EasyMark]

True hacker would use web scraping to get the rates and a bash script to turn the switch on and off based on rates

[Larrikin]

That's the entire point of Home Assistant, I'm currently writing an integration for my electric company. I'd argue the college junior programmer would try to do it from scratch instead of leveraging the solution that gets you 90 percent of the way there out of the box.

[Ella-e]

You means something like HEMS. A controller to connect everything in house ?

[euroderf]

with a scrolling LED display for streaming updates.