Shelly EM Pro energy meter and dynamic pricing integration with API link

Hi everyone, I use my HA Green out of the box with this operating system version
Installation Assistant OS

  • Core2026.5.2
  • Supervisor2026.05.0
  • Operating System17.3
  • Frontend20260429.4 supervised
    I have managed to connect Shelly and the electricity pricing sensor entities via API

Now I can see this screen after 5 days. I was hoping to see more detailed bar graphs showing hourly usage and pricing, but that's all I can see.


Do I need to get Apexcharts through HACS, which I think, in my case, means installing HA OS because my operating system is a core version?
I am just a regular household user, so I won't be able to manually enter functions, etc., etc . I just want to create a detailed usage-and-price bar chart to see how much I used and at what price.
I am in Australia, using the Amber energy provider, and my only concern is grid consumption.
Also, do I need to keep my computer on at home to help produce the data?
Thanks so much