If you want to use data from the future you have to use another way for a diagram in IP-Symcon for example Highcharts - Multigraph
IP-Symcon would have to adapt the way they are creating graphs at the moment this it not possible.
Ok, I guess I have to look into Highcharts then to present the energy prices in a graph.
But thanks for all the help with the script, really appriciated 
Now I just need to get the LIVE power consumption using websocket to work.
I asked Symcon premium support but they had little knowledge with Nall Chan’s websocket module.
So if anyone have experience with this and how to use a register variable and set up a script for reading the websocket module I would be eternally grateful
Using a query I can just get my consumption every hour, but with the websocket it’s updated every 10 seconds.