Incorporating local kW data from a web address into Energy dashboard

I can poll my instantaneous power usage via http://192.168.2.39/instantaneousdemand which gives me the following output: 000004.397 kW
How can I poll this data on a regular basis and incorporate it into the energy dashboard to track my energy usage? I’m not that up on Python scripts etc. I’m kind of new at this.
Thank you.