Are you using Power of the Hour or Power by the Hour?
There are 2 of them.
I use Power by the Hour and there is also a topic for that app.
Maybe you can read there something about pricing use.
https://homey.app/en-gb/app/com.gruijter.powerhour/Power-by-the-Hour/
https://community.homey.app/t/app-pro-power-by-the-hour-insights-per-hour-day-month-and-year/20535
But maybe both apps can do what you want.
