How to make a notification when pvoutput reaches 1000kwh solar output

How can i make an icon change color, or have a popup or message when my pvoutput reaches 1000kwh.

It should reset after a period of time.

I receive a bonus here in Belgium, whenever i produce 1000 kwh with my solar panels.

The thing is, they arent located at home so i use pvoutput for follow up.